No Comm from Micro to CCB3 (3REC-C2)
system
Description
No communication from CCB3 for 10 seconds, and the unit performs a required shutdown; after two minutes it shuts down all modules except the display.
Activation Conditions
Alarm 21100 is not active, and Unit is not starting in diesel. No communication from the CCB3 Module for 10 seconds.
Unit Behavior
Engine and Electric Operation: Required Shutdown. If alarm remains active for two minutes issue a shutdown command to all modules except the display.
Reset Conditions
Communication received from the CCB3 Module in the past 10 seconds or alarm may be manually reset by turning the unit off, then back on again.
Corrective Actions
1. Check for additional CCB3 / CCB4 and STP3 / STP4 alarms Alarms for CCB3 and CCB4 indicate a problem before CCB3 or at CCB3. Alarms isolated to CCB3 indicate a problem before CCB3 or at CCB3. Alarms isolated to CCB4 indicate a problem between CCB3 and CCB4, or at CCB4. Stepper Alarms isolated to STP3 or STP4 indicate a problem with the associated CCB 2. Check wiring to CCB3 a. Check wiring. Verify no physical damage to harness. Verify no damage, moisture, or corrosion in connectors. b. Check voltage. Verify power at 3REC04 and 3REC15 c. Check CAN connectivity. Verify CAN connectivity at 3REC05 and 3REC17