Type: DC “Series Wound” Motor Controllers

Overvoltage/Undervoltage shutdown: adjustable,

• 8-60 VDC (48V models) (60VDC MAX)
• 8-90 VDC (72V Models) (90VDC MAX)

Operating Frequency: 18kHz

Voltage drop @ 100 amps: <o.18V

Control Voltage: Key Switch (KSI), Reverse (REV) and Personality Switch (USER):

• SR48xxx: 12-48V Nominal Battery Pack Voltage, 62VDC Max
• SR72xxx: 12-72V Nominal Battery Pack Voltage, 92VDC Max

Standby Current (Powered Up): <35mA (nom)

Reverse sense pin current: <0.02A (20mA)

Relay SOLENOID drive output current: 5amp peak, 1.0A Continuous

Throttle Input:

• ITS (inductive, E-Z-GO)
• 0-1K Yamaha
• Resistive 0-5K ohm (+/-10%) 2-wire and 3-Wire
• Resistive 5K-0 ohm (+/-10%) Club Car
• 0-5Volt
• 6-10.5Volt (Taylor Dunn)
• Absolute mode (Precision control for industrial applications)

Operating Temperature: -20 C to 85 C, Shutdown @ 95 C

Adjustments via Alltrax Tool-Kit Software:

• Throttle acceleration / deceleration rate and map profile
• Armature current limit
• Under / Over voltage shutdown
• Half Speed Reverse
• High Pedal Disable

Whats the Secret Decoder Ring?

SR-48300

The LED located on the front of the unit provides status of the units operation and used for troubleshooting.

The LED Blink Codes occur at power up, the number of green blinks indicates the throttle configuration:

• 1 Green LED flash = 0-5 ohm resistive
• 2 Green LED flashes = 5k-0 ohm resistive
• 3 Green LED flashes = 0-5 Volt
• 4 Green LED flashes = ITS Inductive E-Z-GO
• 5 Green LED flashes = 0-1K ohm resistive, Yamaha
• 6 Green LED flashes = 6-10.25 Volt, Taylor-Dunn
• 7 Green LED flashes = 5k-0 ohms, 3-wire, ClubCar
• 8 Green LED flashes = Reserved for future use
• 9 Green LED flashes = PUMP Mode (toggle on-off ramp to 100% output)
• 10 Green LED flashes = USB Comm-throttle
• 11 Green LED flashes = Absolute throttle

Normal display status:

Solid Green: Controller ready to run
Solid Yellow_ Controller throttle is wide open, controller is supplying max output, and is not in current limit

Troubleshooting:

The XCT-SRX controllers ERROR codes are different than the AXE and DCX products. Please note the Error code display: # of GREEN and RED blinks indicates any error conditions that might exist:

Critical:

• 1-GRN (+) 1-RED LED flash = Over Current/Short Circuit
• 1-GRN (+) 2-RED LED flash = Battery Under Voltage
• 1-GRN (+) 3-RED LED flash = Battery Over Voltage
• 1-GRN (+) 4-RED LED flash = Over Temp (Check connections)
• 1-GRN (+) 5-RED LED flash = Motor Field OPEN alarm (Check connections)
• 1-GRN (+) 6-RED LED flash = Pre-Charge Failure

Status Indicator:

• 2-GRN (+) 1-RED LED flash = Under Temp (below -20C)
• 2-GRN (+) 2-RED LED flash = Not Used (Reserved)
• 2-GRN (+) 3-RED LED flash = High Throttle Over-range (note 1)
• 2-GRN (+) 4-RED LED flash = High Throttle Under range (note 1)
• 2-GRN (+) 5-RED LED flash = Low Throttle Over range (note 2)
• 2-GRN (+) 6-RED LED flash = Low Throttle Under range (note 2)

Note 1: High Throttle range is the “full pedal position”

• The throttle could be faulty
• Wiring/connectors
• Incorrect throttle set in the program
• Otherwise, Clear throttle auto-calibration and try again

Note 2: Low Throttle range is the pedal “at rest OFF pedal position”

• The throttle could be faulty
• Wiring/connectors
• Incorrect throttle set in the program
• Otherwise, Clear throttle auto-calibration and try again

Note 3: Uncalibrated throttle

• May occur when an XCT, SR, SPM or SPB controller is auto-calibrated to one electric car throttle, then moved to another electric car – or, a new throttle is replaced.
• Clear throttle auto calibration and try again

Advanced controller have a multitude of inputs and outputs. A sequence of Green+Red provides more alarm codes without counting past 6 flashes (which is difficult to do).

There is a pause between these alarm sequences always starting with GREEN.

Group 1: 1-Green + Red alarm code is a Critical Alarm
Group 2: 2-Green + Red alarm code is a condition that may inhibit or cause the controller to stop, but is not a hard fault, rather a condition that requires attention.
Group 3: 3-Green + Red alarm code is an uncalibrated throttle, clear the throttle calibration and try again. The program may also have a fault or loaded or updated incorrectly. Contact Alltrax Customer support for troubleshooting Bad Vars.

Tech-Talk: Throttle Range
When the throttle is pressed and foot-switch closes and records the “zero position” of the throttle. The controller remembers the highest input and stores this as 100% throttle.
This allows throttles that are “not manually calibrated”, production variances, or slightly old and worn to provide excellent low end control and always hit 100% throttle.
This learning curve is “adaptive” with built in fail safes which means – the advanced XCT knows what the range is suppose to be for a give throttle.
So if a 0-5K resistive throttle is measuring “Out Of Range” an alarm will alert the user to verify the mechanical issues to prevent an unsafe condition.