Specifications

Maintenance and Troubleshooting
ADDvantage-32 PLUS ● AC to DC Power Converter
7-9
TABLE 7-2. POWERUP MESSAGES (cont.)
FAULT MESSAGE PROBLEM SOLUTION
HARDWARE PROBLEM
MISSING CABLE
MICRO -> BRG BOARD
Drive detected a missing
ribbon cable between
the microprocessor and
bridge interface board
a. Check cable between the
microprocessor board and bridge
board.
b. Replace bridge interface board
c. Replace microprocessor board
d. Replace ribbon cable
HARDWARE PROBLEM
MISSING THERMISTOR
CABLE ON
BRIDGE BOARD
Bad thermistor or
missing cable.
a. Check cables at J8 and J2 of bridge
interface board.
b. Replace thermistor RT1.
c. Replace microprocessor board.
HARDWARE PROBLEM
OPEN ARMATURE
BRIDGE CABLE
DETECTED
Open circuit detected in
armature bridge
interlock loop.
(540 ADC and up only)
Check interconnect cables to and
within armature bridge for loose
connections, etc.
2. FAULTS AND WARNINGS
The faults and warnings alert the user to the condition of the drive and motor.
Faults are conditions that can damage the motor or drive if the condition
continues. To protect against damage, the drive opens the DOK (Drive OK)
contact which in turn opens the motor contactor. All faults are level sensed and
must be rectified before FAULT RESET can be pressed. Warnings occur when
limits in the drive have been reached or when a fault is about to occur, allowing
the user to correct the condition before a drive fault occurs.
Fault Queue - The fault queue stores the last sixteen faults using a FIFO method
of data storage. The FIFO faults reside in RAM and if a power loss occurs, the
faults are saved in EEPROM. The FIFO stores all faults and issues a FLT
CLEARED message indicating that the operator cleared the fault but not the FIFO
memory.
The drive faults may be cleared in one of four ways:
1) The user may clear faults by using the RESET key on the HIM.
2) The user may clear faults by using the FAULT CLEAR syntax in the
FAULT menu.
3) The user may configure the drive to clear faults on the positive transition
of a bit in the digital table ( Y***:CLR FLT INP)
4) The user may configure the drive to clear faults on the close of the M