Carrier TRANSICOLD Vector 8500 User Manual

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26105 ENGINE OVERRUN ENCU
• ACTIVATION: Engine speed > 2070 min−1 (rpm)
• UNIT CONTROL: Engine Operation: Required Shutdown.
Electric Operation: Will not activate in electric operation.
• RESET CONDITION: If trigger on message not received for 5 seconds, alarm reset or alarm may be
manually reset by turning the unit off, then back on again.
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. Refer to:
00038 CHECK HIGH SPEED RPM
00039 CHECK ENGINE RPM
26106 SENSOR SUPPLY VOLTAGE 1 LOW
• ACTIVATION: Voltage to sensor is below 4.00 V
• UNIT CONTROL: Engine Operation: Required Shutdown.
Electric Operation: Will not activate in electric operation.
• RESET CONDITION: If trigger on message not received for 5 seconds, alarm reset or alarm may be
manually reset by turning the unit off, then back on again.
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 Engine Speed Sensor (ENSSN)
a. Check actual engine speed using a hand held tachometer and compare with speed shown in unit
data. Must be ± 20 rpm. Must be a steady reading.
b. Inspect sensor, connector pins & terminals. (See wiring schematic Section 10.) Verify there is no
physical damage to sensor, and no damage or corrosion in connections.
c. Check power from ENCU. +5 VDC from terminal ENCU−43 to ENSSN−3
d. Check power from ENCU. +5 VDC from terminal ENCU−29 to RPS−1
e. Check ground to ENCU. Check wiring from terminal ENCU−20 to ENSSN−1
f. Check signal to ENCU. Check wiring from terminal ENCU−2 to ENSSN−2
2. Check Rack Position Sensor (RPS). Refer to Section 8.5.12.

Carrier TRANSICOLD Vector 8500 Specifications

General

Brand	Carrier TRANSICOLD
Model	Vector 8500
Category	Automobile Accessories
Language	English