SCOTTY 1500 & 3000
INSTALLATION & OPERATION MANUAL
SCOTTY 1500 12-24V, 12-36V 12-48V SCOTTY 3000 12-24V, 12-36V 12-48V SCOTTY 3000 24-48V ALL Bidirectional with 3 CAN Ports
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SCOTTY AI 1500 & 3000
CONTENT
SAFETY
2
WIRING DIAGRAM
3
5
5
HARNESS CONNECTION
6
INSTALLATION
TROUBLESHOOTING & DIAGNOSIC PROCEDURE Part 1
9
Scotty AI 3.0 TUNING GUIDE
10 10
I. Quick Check II. Scotty Wifi Access
10
III. Scotty Main Page
11
IV. Scotty Tuning Page V. Scotty Advanced Page
13 13
TROUBLESHOOTING & DIAGNOSIC PROCEDURE Part 2
18
WARRANTY
25
CONTACT / SUPPORT
26
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SCOTTY AI 1500 & 3000
This manual contains important instructions that shall be followed during installation and maintenance. Danger of explosion from sparking and danger of electric shock.
SAFETY
GENERAL SAFETY REGULATIONS
Please read the safety instructions below before installing and using the Scotty AI 1500/3000 to avoid risks of fire, electric shocks, personal injuries or equipment damage. This product is designed and tested in accordance with international standards.The equipment should be used for its designated application only and in accordance with the specified operating parameters.
REGULATIONS FOR SAFE INSTALLATION
For electrical work, follow the local national wiring standards, regulations and these installation instructions. Install the product in a heatproof environment. Ensure therefore that there are no chemicals, plastic parts, curtains or other textiles, etc. in the immediate vicinity of the equipment. It is normal for the Scotty AI 1500/3000 to get hot during operation. Keep any objects that are heat-sensitive away. Never install or use the product at sites where gas or dust explosions could occur. Use flexible multi-stranded copper cables for the connections (UL: Class I; IEC: Class 5). The installation must include a fuse in accordance with the recommenda- tions in the table Cable type recommendations. Always remove all dirt and paint from chassis connection points. Apply the correct torque when fastening the connection bolts.
Please make installation less than 2m from the floor.
SHARP EDGES Scotty AI 1500/3000 contains sharp edges and should not be touched without taking care.
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SCOTTY AI 1500 WIRING DIAGRAM “A”
7- PIN Harness Pinout
Pin 1: ENABLE (12V) Pin 2: CAN+ (CAN H) Pin 3: ALT 12V+ SENSE Pin 4: ALT TEMP V- Pin 5: FEATURE IN Pin 6: CAN- (CAN L) Pin 7: ALT TEMP V+
Resereved
Chassis Ground
Small Sense Wire
Resereved
Chassis Ground
TEMP Probe
Put on Alternator frame NOT on positive terminal
Note: There is NO 120Ω termination resistor Additional 120Ω may be required
End Terminator Goes Here
ON/OFF Push Button In lieu of connecting “Enable” Wire
NMEA 2000 Backbone/Drop Cable, Right Angle (0.3 m/1 ft) SAFIERY SKU 010-11089-01 T Connector
To Backbone see CAN Drawing
SCOTTY AI 1500 GEN 3
NMEA 2000
FUSES Enable: 2A
7-PIN Harness
48V Bank + -
+HS: 60A
+HS
+LS: 150A
+LS
GND
Chassis Ground (Most important Connection)
IN OUT
12V or 24V Loads Use Fusing for Loads
12V or 24V Positive Can go to Starter Battery OR Alternator
Unless using STAR Controllers Advanced Fuseless Products
Smart Battery Protect 65A or 100A or 200A
Important Notes: • FEATURE IN: Connect to +12V for blocking charge if required (not needed for CAN) • DO NOT USE SCOTTY TOUCH connection if it is shown on the harness • This diagram is for Scotty GEN 3 ONLY • Harness colors may vary from diagram • Temp Probe Negative MUST BE JOINED TO HARNESS NOT TO CHASSIS GROUND
Chassis Ground
Chassis Ground
Wire Color Legend: Positive (+)
Negative (-)
CAN Bus
WHEN TO USE THIS WIRING DIAGRAM “A”
RULE No. 1: ALWAYS CONNECT NEGATIVE FIRST and NEVER DISCONNECT THE NEGATIVE - NEVER
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SCOTTY AI 3000 WIRING DIAGRAM “A”
7- PIN Harness Pinout
Pin 1: ENABLE (12V) Pin 2: CAN+ (CAN H) Pin 3: ALT 12V+ SENSE Pin 4: ALT TEMP V- Pin 5: FEATURE IN Pin 6: CAN- (CAN L) Pin 7: ALT TEMP V+
Resereved
Chassis Ground
Small Sense Wire
Resereved
Chassis Ground
TEMP Probe
Put on Alternator frame NOT on positive terminal
Note: There is NO 120Ω termination resistor Additional 120Ω may be required
SCOTTY AI 3000 GEN 3
+HS
FUSES +HS: 60A
GND
48V Bank + -
+LS: 150A
+LS
7-PIN Harness
Enable: 2A
NMEA 2000
End Terminator Goes Here
T Connector
ON/OFF Push Button In lieu of connecting “Enable” Wire
NMEA 2000 Backbone/Drop Cable, Right Angle (0.3 m/1 ft) SAFIERY SKU 010-11089-01
Chassis Ground (Most important Connection)
To Backbone see CAN Drawing
IN OUT
12V or 24V Loads Use Fusing for Loads
12V or 24V Positive Can go to Starter Battery OR Alternator
Unless using STAR Controllers Advanced Fuseless Products
Smart Battery Protect 65A or 100A or 200A
Important Notes: • FEATURE IN: Connect to +12V for blocking charge if required (not needed for CAN) • DO NOT USE SCOTTY TOUCH connection if it is shown on the harness • This diagram is for Scotty GEN 3 ONLY • Harness colors may vary from diagram • Temp Probe Negative MUST BE JOINED TO HARNESS NOT TO CHASSIS GROUND
Chassis Ground
Chassis Ground
Wire Color Legend: Positive (+)
Negative (-)
CAN Bus
WHEN TO USE THIS WIRING DIAGRAM “A”
RULE No. 1: ALWAYS CONNECT NEGATIVE FIRST and NEVER DISCONNECT THE NEGATIVE - NEVER
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SCOTTY AI 1500 WIRING DIAGRAM “B”
Connect to 12V + In Smart Battery Protect
7- PIN Harness Pinout
3 Spare Pins in 12 Pin Trailer Connector
Chassis Ground
Pin 1: ENABLE (12V) Pin 2: CAN+ (CAN H) Pin 3: ALT 12V+ SENSE Pin 4: ALT TEMP V- Pin 5: FEATURE IN Pin 6: CAN- (CAN L) Pin 7: ALT TEMP V+
Resereved
NOTE DIODE
Chassis Ground
Resereved
TEMP Probe
Put on Alternator frame NOT on positive terminal
Note: There is NO 120Ω termination resistor Additional 120Ω may be required
End Terminator Goes Here
ON/OFF Push Button In lieu of connecting “Enable” Wire
NMEA 2000 Backbone/Drop Cable, Right Angle (0.3 m/1 ft) SAFIERY SKU 010-11089-01 T Connector
To Backbone see CAN Drawing
SCOTTY AI 1500 GEN 3
NMEA 2000
FUSES Enable: 2A
7-PIN Harness
48V Bank + -
+HS: 60A
+HS
+LS: 150A
+LS
GND
Chassis Ground (Most important Connection)
IN OUT
12V or 24V Loads Use Fusing for Loads
Unless using STAR Controllers Advanced Fuseless Products
Smart Battery Protect 65A or 100A or 200A
Important Notes: • FEATURE IN: Connect to +12V for blocking charge if required (not needed for CAN) • DO NOT USE SCOTTY TOUCH connection if it is shown on the harness • This diagram is for Scotty GEN 3 ONLY • Harness colors may vary from diagram • Temp Probe Negative MUST BE JOINED TO HARNESS NOT TO CHASSIS GROUND
-
+
12V Connector to Vehicle Alternator Maybe Anderson Plug or Amphenol Connectors
Wire Color Legend: Positive (+)
Negative (-)
CAN Bus
WHEN TO USE THIS WIRING DIAGRAM “B”
RULE No. 1: ALWAYS CONNECT NEGATIVE FIRST and NEVER DISCONNECT THE NEGATIVE - NEVER
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SCOTTY AI 3000 WIRING DIAGRAM “B”
Connect to 12V + In Smart Battery Protect
7- PIN Harness Pinout
3 Spare Pins in 12 Pin Trailer Connector
Chassis Ground
Pin 1: ENABLE (12V) Pin 2: CAN+ (CAN H) Pin 3: ALT 12V+ SENSE Pin 4: ALT TEMP V- Pin 5: FEATURE IN Pin 6: CAN- (CAN L) Pin 7: ALT TEMP V+
Resereved
NOTE DIODE
Chassis Ground
Resereved
TEMP Probe
Put on Alternator frame NOT on positive terminal
Note: There is NO 120Ω termination resistor Additional 120Ω may be required
SCOTTY AI 3000 GEN 3
+HS
FUSES +HS: 60A
GND
48V Bank + -
+LS: 150A
+LS
7-PIN Harness
Enable: 2A
NMEA 2000
End Terminator Goes Here
T Connector
ON/OFF Push Button In lieu of connecting “Enable” Wire
NMEA 2000 Backbone/Drop Cable, Right Angle (0.3 m/1 ft) SAFIERY SKU 010-11089-01
Chassis Ground (Most important Connection)
To Backbone see CAN Drawing
IN OUT
12V or 24V Loads Use Fusing for Loads
Unless using STAR Controllers Advanced Fuseless Products
Smart Battery Protect 65A or 100A or 200A
Important Notes: • FEATURE IN: Connect to +12V for blocking charge if required (not needed for CAN) • DO NOT USE SCOTTY TOUCH connection if it is shown on the harness • This diagram is for Scotty GEN 3 ONLY • Harness colors may vary from diagram • Temp Probe Negative MUST BE JOINED TO HARNESS NOT TO CHASSIS GROUND
-
+
12V Connector to Vehicle Alternator Maybe Anderson Plug or Amphenol Connectors
Wire Color Legend: Positive (+)
Negative (-)
CAN Bus
WHEN TO USE THIS WIRING DIAGRAM “B”
RULE No. 1: ALWAYS CONNECT NEGATIVE FIRST and NEVER DISCONNECT THE NEGATIVE - NEVER
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SCOTTY AI 1500 / 3000 WIRING DIAGRAM “B”
(Build-in Terminator)
Safiery STAR Switch Keypad
Safiery Solid State or Meteor Battery
Safiery STAR Digital Switch Controllers
SCOTTY AI 1500/3000 Address: 29
12V DC Power 5A Max
Victron Cerbo
END TERMINATOR
Drop Cable
END TERMINATOR
120Ω
120Ω
PWR
T
MALE
FEMALE
NMEA 2000 BACKBONE
NMEA 2000 Network Rules
Power Requirements
Termination Requirements
Network Power:
Terminators:
Backbone: • Maximum length: 200m (656 ft) • Minimum length between T's: 0.5m • Cable type: Safiery NMEA 2000 Compliant Drop Cables: • Maximum length: 2m each • For longer lengths: Run longer ~ 20m cable with terminator at T piece at endLorem ipsum
• Voltage: 12V DC (9-16V range) • Current: 3A typical, 5A maximum • Insert Power towards cetre of backbone or network
• Exactly 2 required (one at each end) • Resistance: 120Ω ± 6Ω • Male on one end, Female on other • Safiery Solid State and meteor Batteries have a Terminator inbuilt. Which means place these at end of line in drawing above and do not user a separate terminator on that end. Connector Types: • Safiery NMEA 2000 Compliant Micro-C (M12) 5-pin standard
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WIRING DIAGRAM & DATA CABLING KIT
The NMEA connector on Scotty AI (1 above) Or use the wired CAN Hi CAN Lo connector in the harness (2 Below) Connect
+LS
Common
+HS 48V
2
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SCOTTY AI TROUBLE SHOOTING INSTRUCTIONS Part 1
Scotty not visible on WiFi and is not Charging
RULE No. 1: NEVER DISCONNECT THE NEGATIVE - NEVER
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SCOTTY AI 3.0 TUNING GUIDE
Scotty AI 3.0 or Scotty GEN 3 can be identifed through its lable (SCOTTY AI 3.0) or its version number (V3.x.x.x). Scotty AI 2.0 is labled as SCOTTY AI 2.0 and its version starts with V2.x.x.x. This guide can be used for tuning a SCOTTY AI 2.0. There are a few different you need to know: An interface may be slightly different
Scotty AI 2.0 does not have a Low Side Charging Algorithm For Scotty 1500 (1.5kW) harness do not have ALT TEMP V- wire, you need to connect temprature sense negative cable direclty to Scotty negative terminal
I. Quick check:
I. GND Scotty terminal is connected to ground II. + LS Scotty terminal is connected to alternator (+12V or +24V) III. +HS Scotty terminal is connected to a battery bank (+24V or +36V or +48V) IV. Enable is connected either to +LS or +HS (Please note that only Scotty AI 3.0 Enable can be connected to +HS) V. ALT SENSE 12V+ is connected to alternator (+12V or +24V)
VI. ALT TEMP V+ is connected to a temprature sense positive (red cable)
VII. ALT TEMP V- is connected to a temprature sense negative (black cable) VIII. CAN communication is connected to a CAN system (optional)
II. Scotty Wifi Access
We recommend to turn off auto connect function of a wifi network that your
Go to wifi, select a Scotty wifi Enter a Scotty wifi password: Scottyai@0
Go to a web browser: http://172.24.24.1
A token for scotty is: 11337777 (if required), refresh a web page after you update a token.
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SCOTTY AI 3.0 TUNING GUIDE
III. Scotty Main Page
In a Scotty main page, you can see information about Scotty Status, Idle Setting, Parameters, CAN BATTERY, BATTERY WITHOUT CAN, and Diagnostic Info. For a Scotty is ready to tune, you can look at the Scotty Status in a Scotty main page via the following indicators: a, Scotty Status
There is no error and Scotty is ready for tuning.
Indicate a Scotty power. Please note that a Scotty consumes a few W while it is at a Camping mode (ready to change a direction either charging or discharging). A negative number means that Scotty charges from +LS to +HS. A positive number means that a Scotty discharge from +HS to maintain +LS at Camping Set Point.
Indicate a voltage of alternator or LS battery bank (for instance, 12.18V).
If you do not see a LS voltage (around 12V, 24V for 12V, 24V respectively alternator), please check an ALT SENSE 12V+ wire to make sure it is connected to either alternator or LS battery bank and battery presents voltage. In some case, LS battery bank may go flat. ALT SENSE 12V+ wire must be connected to +LS alternator or +LS battery bank for a Scotty to be fully function.
Indicate a alternator temprature.
If you see a huge number, or any unreasonable number, you should check a temperature wiring, either it is not wired correctly or temperature sense may damage during an installation.
Indicate a +HS voltage, for instance 52.69V.
If you do not see any +HS voltage is presented, please check whether you +HS is connected to a +HS battery bank or a HS battery bank is turned on.
5
Indicate an Internal Scotty Temperature.
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SCOTTY AI 3.0 TUNING GUIDE
b, Idle Setting
Indicate a charging mode of Scotty. You can either select a Soft, Medium, or Hard mode.
A Hard mode means a Scotty take as much as power available from alternator. A Medium mode means a Scotty take a fair bit of power available from alternator. A Soft mode means a Scotty take a little bit of power available from alternator. All battery information can be seen though Scotty via Scotty main page, at CAN BATTERY section. If you do not see battery information, please check your CAN communication network. c, CAN BATTERY
These information shows +HS voltage and some parameter that set up in a tunning page, like minimum discharge voltage, maximum charge voltage, floating voltage. d, Battery without CAN
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SCOTTY AI 3.0 TUNING GUIDE
We recommend to turn off auto connect function of a wifi network that your device is connected to. IV. Scotty Tuning Page After cheking key parameters, Scotty is ready for tuning. To access a tunning page, click a link at the end of Scotty Status section in the main page.
Or access: http://172.24.24.1/tune
If Scotty is wired corrected, you should see a No Errors :)* message.
Parameter Setting: To change a parameter, click on a a right box,
delete it, type a new number , and click Update .
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SCOTTY AI 3.0 TUNING GUIDE
a) Alternator Size
Put a LS alternator size, if you do not know exact number, enter 150 for Scotty 1.5kW and 250 for Scotty 3kW.
b) Camping set point
Camping set point is a voltage that Scotty will maintain for +LS battery when it discharge from +HS to +LS.
We recommend set it at 12.6V and 25.2V for 12V and 24V battery, respectively. You may lift up a camping set point higher, however, do not make it higher than 13.0V and 26.0V with 12V and 24V battery, respectively. Only increase it when necessary (some devices need a certain voltage for normal operation).
c) High side minimum discharge voltage
High side minimum discharge voltage is voltage that Scotty will stop discharge from +HS to +LS if +HS voltage get lower to this point. Please check a battery parameter for this set up. For lithium battery, we recommeded to put at a norminal volatge (24V, 36V, 48V). For sodium battery, please check with battery provider or battery parameter.
d) High side maximum discharge current
It is a maximum discharge current from +HS to +LS. You can turn off a discharge function from Scotty by put a zero (0) current.
Maximum set up for Scotty
40A 40A 30A 80A 80A 60A 60A Maximum +HS current
Scotty Type 1.5kW: 12V-24V 1.5kW: 12-36V 1.5kW: 12-48V 3kW: 12V-24V 3kW: 12V-36V 3kW: 12V-48V 3kW: 24V-48V
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SCOTTY AI 3.0 TUNING GUIDE
e) High side floating voltage
It is a floating voltage while Scotty charge from +LS to +HS.
Please carefully check a set up parameter for your battery. Different batteries have different float voltage. You can not enter a HS Float Volt is higher than a HS Max Charge Volt
f) High side maximum charge voltage
It is a maximum charge (obsorbtion) voltage for your +HS battery.
Wrong set up can cause a damage to HS battery!
g) Alternator Maximum Temprature
If your alternator temprature is higher than a set up number, Scotty will stop taking power from +LS to +HS to prevent a heating up alternator. When temprature of alternator is lower, Scotty will operate as normal.
Recommend set up is 100C but can be set at 120C for those vehicles that run very hot in the engine bay. RAM 2500/3500 run at 105C so need a maximum set point of 120C
h) Alternator current limit
This set up allows to limit a maximum power that Scotty can charge from +LS to +HS.
Recommend maximum set up for alternator current limit:
75A 120A 120A 150A 220A 220A 110A Maximum +HS current
Scotty Type 1.5kW: 12V-24V 1.5kW: 12-36V 1.5kW: 12-48V 3kW: 12V-24V 3kW: 12V-36V 3kW: 12V-48V 3kW: 24V-48V
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SCOTTY AI 3.0 TUNING GUIDE
Please note a current limit set up can be varied depend on +LS voltage, however, do not set it up for Scotty work at higher than its rated power, 1.5kW for 1500 Scotty and 3kW for 3000 Scotty. For charging from +LS to +HS, maximum current for Scotty +HS is 30A for Scotty 1500 and 60A for Scotty 3000. For 12V-24V Scotty used, please bare in mind the maximum +HS current while calculating a alternator current limit (+LS). For example: Scotty 1.5kW: 12-24V +HS voltage at 26V + LS voltage at 12.8V +LS current limit can be calculated: 26(V)*40(A)/12.8(V) = 81.25(A) Note there is a power limit of either 125A on 12V side OR 1500W which ever is the reat for Scotty 1500. Some larger alternators can produce 125A at 13.5V = 1,688W. This exceeds the power limit. In these cases reduce the max current to 110A. Likewise the Scotty 3000 has a limit of 250A on the 12V side, 125A on the 24V Side when it is the low side and an overall power limit of 3000W. When the low side alternator power is big the charge voltage will increase and you will need to reduce the maximum current.
Please note while Scotty is running, +LS and +HS are varied.
i) Smart Alternator Trigger Voltage
Recommend seting for this parameter is 12.3V and 24.9V for 12V and 24V +LS Scotty, respectively.
However, keep this set up 0.3V lower than a Camping SetPoint. So if a camping voltage os 12.6 is used, dont set the trigger voltage above 12.3V
Keep feature in disable if you do not control a Scotty through a “Stop Charge” wire j) Feature in
If Feature In wire is connected to control Scotty working Enable need to be selected if you want Scotty to charge the high side battery by a positive control (+12V or +24V only) on the feature in wire; Enable Inverted need to be selected if you want Scotty to charge the high side battery by a negative control (GND) signal.
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SCOTTY AI 3.0 TUNING GUIDE
g) Auto Tune
After all parameters have been set up. Turn on a engine.
And Click Auto Tune
Tuning process goes through 04 steps: Initiating Tuning State, Tuning Soft Stage, Tuning Medium Stage, Tuning Hard Stage.
You may would like to come back a Scotty Main Page to keep an eye on how much power Scotty charge from +LS to +HS buy click a link at the bottom of the Tunning page.
Below is a screenshot of Scotty while it is tuning at Medium Stage.
When tuning is successfully, you will se a message Dynamic Charging and Discharging
V. Scotty Advanced Page
You only need to access a Scotty advance page for setting up a master and slave Scotty. A master and slave set up is required when a system that have two Scotty working together with a single LS battery bank (two alternators is joined with a single battery bank). CAN connection between two Scotties is required for this set up.
Please contact us for IP address to access Scotty Advance Page.
Do not change any other parameters than the following parameters: Master , and Slave . Before seting a master and slave Scotty, you need to tune Scotty individualy as above procedure. After completing tune both Scotties individually, you need to access Scotty Advanced Page to set up a master and slave Scotty. For master Scotty: Enter number 10 into a Master and click Update
Please note keep a Slave as default. For slave Scotty: Enter number 10 into a Slave and click Update
Please note keep a Master as default.
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SCOTTY AI TROUBLE SHOOTING INSTRUCTIONS Part 2
RULE No. 1: NEVER DISCONNECT THE NEGATIVE - NEVER
DIAGNOSIC PROCEDURE
When Scotty AI is not charging or performing as expected, scroll to the bottom of the main page and read the reported fault. The figure shows a list of failures on the main page. • After reading, go to: Potential Solutions Guidance to understand what the fault means. • The following text shows an Enumeration list of Fault Problems and possible Solutions. ‘Feature In’ Activated: The designed feature allows the receipt of stop charge requests from the house battery when the CanBus connection from the battery management system (BMS) is not in use. • It is recommended to verify the condition of the house battery; • If this feature is not required, you can disable it from the system settings.
HS (High Side) battery preventing charge: A high-side battery preventing charge means that the house battery BMS is not accepting a charge, which may suggest that the Battery is already fully charged. • However, it is also possible that there may be underlying issues with the Battery's health. • Therefore, we recommend thoroughly checking the house battery's condition to ensure optimal functionality. Alternator current limit is configured to 0: The alternator current limit pertains to the maximum current drawn from the alternator. • The limit is currently set to zero, indicating that no charging is taking place. • To modify this setting, please navigate to the 'Tuning page' where you can adjust the alternator current limit to the desired level. ‘Inverted Feature In’ Activated: This functionality is similar to the 'Feature In' feature but with an inverted operation. • It activates when it detects a 0 V signal in the 'Feature In' wire. • It is recommended to verify the condition of the house battery; if this feature is not required, you can disable it from the system settings. If this is selected and nothing is connected to the feature-in, Scotty will naturally stop!
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SCOTTY AI TROUBLE SHOOTING INSTRUCTIONS Part 2
Alternator temperature protection is active: The current indication is that the alternator is overheated, so you cannot use it now. • If the alternator's temperature is not high, there is a possibility that the temperature probe may have become disconnected. Therefore, we recommend checking the wiring to ensure it is properly connected. • Most Engines run around 90ºC under the engine bay, but some vehicles go as high as 105ºC. • We recommend increasing it to 120ºC in this case. HS Charge Voltage is reached: Based on current readings, the high-side battery voltage has reached the maximum allowable charge voltage. • To modify this setting, please access the designated 'Tuning page.' • However, we strongly advise referring to the battery manufac- turer's specifications before making any changes. An Error Occurred: We suggest checking for error messages, which may indicate that the HS or LS terminal is not adequately connected to the Battery. • To begin troubleshooting, we recommend inspecting the fuses and isolators and ensuring they function correctly. Voltage Sense Wire disconnected: The current indication suggests that the sense wire is not detecting sufficient voltage. • It may be due to a disconnected wire or a depleted starter battery. • If the cause of insufficient voltage is a depleted starter battery, it may not be possible to charge it via the current system. In this case, we recommend connecting an external charger to increase the starter battery voltage to an acceptable level. CAN Bus Signal Lost: The current indication suggests that the system may have lost its connection, as it requires a functioning CanBus system to operate even when not connected to a CAN Bus battery. • We recommend checking the CAN-H and CAN-L cables and performing a power cycle to resolve this issue. HS Battery is in Float Mode: • Based on current readings, it appears that the high-side battery float charge mode. To modify this setting, please access the designated 'setting page.' • However, we strongly advise referring to the battery manufac- turer's specifications before making any changes. Part 2
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SCOTTY AI TROUBLE SHOOTING INSTRUCTIONS Part 2
Idle Setting Off: The current configuration appears to be in the Prevent charging mode because Scotty AI is turned off. • To modify this parameter, please access the main page and adjust the 'Idle' settings accordingly. The Car Engine is Off: The system thinks the car engine is off, so there is no charge. • Please note that the system has a less-than-minute delay in changing states. HS Battery Preventing Discharge: High Battery-preventing discharge means that the house battery BMS is not accepting a discharge, which may suggest that the Battery is already fully discharged. • However, it is also possible that there may be underlying issues with the Battery's health. • Therefore, we recommend thoroughly checking the house battery's condition to ensure optimal functionality.
The Car Engine is On: The system thinks the car engine is on, which means no discharge. • Please note that the system has a less-than-minute delay in changing states.
HS Min Discharge Voltage is reached: Based on current readings, the high-side battery voltage appears to have reached the minimum allowable discharge voltage. • To modify this setting, please access the designated 'setting page.' • However, we strongly advise referring to the battery manufac- turer's specifications before making any changes. LS (Low Side) Load is Low: Based on the current readings, there is an insufficient load connected. • We recommend checking the camping voltage and LS voltage to ensure the system's proper functioning.
SCOTTY DIAGNOSTIC PROCEDURE IN CASE OF INSUFFICIENT POWER
At first do the Auto-Tune: • Check the Tuning Page
- Ensure that the Alternator Size is Correct? - Ensure that max Alternator Current is Correct?
• Check the Status Page. • Ensure that Scotty AI is set to ’Hard’?
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SCOTTY AI TROUBLE SHOOTING INSTRUCTIONS Part 2
If all the above is correct, do the following:
• Run the engine at cruising speed.
• Watch the data on the Status Page.
• Note the LS alternator Voltage sense. If it is above 12.8 V, then the alternator is producing power to match the load.
Take a screenshot of this status page to keep a record of the LS alternator Voltage sense. • Go to the Starter battery.
• Measure the voltage on the starter battery accurately.
• Compare this to the Voltage on the screenshot. The voltage difference x the current in A is the cable loss.
So 13.2 V at the battery, and 12.8 V on the Scotty AI Status Page, means 0.4 V at, so say 100 A = 40 W. It is far too high, and you check the Negative path at first for a good connection. A good loss is 10-15 W. • Look at the Scotty Status page screenshot. If the number it shows is less than the above calculation, then the problem is the negative connection.
• The negative wire from the Starter battery to the chassis in the engine bay must be bolted to and paint-free and clean metal surface.
• The negative wire from the Target Auxiliary battery to the chassis must be bolted to an paint-free and clean metal surface on the chassis.
• We do not recommend laying a separate negative wire, unless there is no chassis for example on a boat. The negative wire is generally the problem in 95% of all circumstances.
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SCOTTY AI TROUBLE SHOOTING INSTRUCTIONS Part 2
1. The starter battery MUST be AGM or Lead/Acid. If all the above is correct, do the following:
If it is Lithium, remove it and return it to the factory standard.
2. The alternator can not deliver enough power.
3. Engine or vehicle loads on a 12 V alternator are high. (Nissan Patrol has electric power steering and takes a lot of power, leaving little powerfor Scotty AI. Scotty AI takes power AFTER the vehicle loads, so they are not compromised.
4. Cable sizes are too small (both positive and or negative).
5. Target Battery(s) can not accept charging at a higher rate, either because they are high SOC or, the temperature has limited BMS, or the Lithium battery just has a lower charging rate (less expensive Lithium batteries.) 6. If charging a caravan from a vehicle with Scotty AI in it and a 7-10 m run at 48 V from Scotty AI to Lithium in the Van, then especially when solar is running, the voltage differential will not be as high and an expected charge rate is 1000 W at caravan 49-50 V and 2000 W when the expected caravan charge rate is 47-48 V.
7. Note that Scotty AI does not use the State of Charge in any calculation.We only use voltage for control.
8. State of Charge is a ‘Calculated concept’ and does not exist in any measured form. It is a calculation that may be reasonable after the batteries are 100% for 2 hours or so. If batteries operate in the 20-85% band repeatedly over a 1-2 week period, they will likely be around 50% max of their capacity, because the cells have not balanced. Safiery’s 48 V batteries actively balance between 90-95% SOC calc value.They are only fully charged when the calculation shows 100% SOC.
NEVER DISCONNECT THE NEGATIVE - NEVER
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