Carrier TRANSICOLD Vector 8500 User Manual

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25101 OVER CURRENT STP1
• ACTIVATION: The stepper current is reported to be too high by stepper board 1 (Indicated by Stepper
Output Voltage < 5V) for 3 Seconds as timed at stepper board.
• UNIT CONTROL: Engine and Electric Operation: Alarm only. Steppers on board with problem disabled
(Powered OFF) until good power reported from Stepper Board at which point they are re−enabled.
• RESET CONDITION: 10 Seconds of good current range reported from all steppers.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the
alarm(s). (Refer to Note 1 in Notes Section, page 7-2.) Operate the unit through the appropriate modes to see if
any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Check wires
Check wiring to Stepper Valves to SVM. Verify there is no physical damage to harness, and no dam-
age, moisture, or corrosion in connectors.
2. Check power
Check power at 2SVM11 and 2SVM22. Verify battery power.
25102 CHECK INPUT VOLTAGE STP1
• ACTIVATION: The stepper input voltage is reported out of valid range (9V to 17V) by stepper board 1 for
3 seconds as times at stepper board.
• UNIT CONTROL: Engine and Electric Operation: Alarm only. Steppers on board with problem disabled
(Powered OFF) until good power reported from Stepper Board at which point they are re−enabled.
• RESET CONDITION: 10 Seconds of good voltage reported from all steppers.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the
alarm(s). (Refer to Note 1 in Notes Section, page 7-2.) Operate the unit through the appropriate modes to see if
any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Check voltages
Check input voltage at SVM1.
2. Check Fuse F3
a. Visually check fuse Verify correct fuse, and check fuse holder for damage, see Figure 2.5.
Replace fuse as required. Clear alarms, restart and check for repeat alarm(s).
b. Check voltage through the fuse. If fuse is blown, replace it.
c. Check wiring from PCM34 − SP−18 − ENCU − 2SVM22. Verify there is no physical damage to har-
ness, and no damage, moisture, or corrosion in connectors.
3. Disconnect Stepper Valve(s), if alarm goes away:
Check operation of suspected valve. Refer to Section 8.8.6.

Carrier TRANSICOLD Vector 8500 Specifications

General

Brand	Carrier TRANSICOLD
Model	Vector 8500
Category	Automobile Accessories
Language	English