Magnetek Elevator Quattro DC - Page 108

Quattro DC Troubleshooting
106
Name Description
Possible Causes & Corrective Action
Field LOSS
The field voltage has been
above 35% of rated and the
field current below 2% of rated
for 1.5 seconds
Check motor field and wiring
 Verify motor field and motor wirings are not
open
 Verify A24J1 (Field Module) and A4JP1
(Motor-Side Product Interface PCB)
connections
 Verify the following LEDs on the Electrical
Control Board (46S04174-0010) are lit: DS1
Line 1, DS2 Line 2, and DS3 Line 3
 Verify Bus Voltage is present on A24Tb1(1)-
(4)
 Verify Bus voltage is present on the topside of
F3 and F4 on the Field Module Supply.
 Note: This fault cannot be reset, unit must be
powered down before fault will clear.
Field Temp.
(fault)
One or more of the IGBT
modules on the field module
has exceeded 95C (203F).
Overtemperature Problems
 Verify the fan on field control module is
circulating air freely.
 Inspect and clean air intake filters
 Verify ambient temperature is less than 45C
Hardware Problem
 View Field IGBT Temp (D2) to see what
temperature the drive is reading for the field
module
 Replace the field module
Field Temp.
(alarm)
One or more of the IGBT
modules on the field module
has exceeded 85C (185F).
Over temperature Problems
 Verify the fan on field control module is
circulating air freely.
 Inspect and clean air intake filters
 Verify ambient temperature is less than 45C
Hardware Problem
 View Field IGBT Temp (D2) to see what
temperature the drive is reading for the field
module
 Replace the field module
Fld Cur Set Hi
The field current is set above
the 20A jumper level when the
drive contains the Low Voltage
Field Module
Check Parameter Settings
 Verify FULL FLD CURRENT (A6), WEAK FLD
CURRENT (A6), and STANDBY FIELD (A6)
are set below 20A when JP1 on the field
module PCB is A.
Check Jumpers
 Verify Jumper JP1 on the Field module is
placed in the correct field ampere range
 Note: Drive automatically detects the type of
field module, either Low Voltage Field Module
or Standard Field Module. If the Low Voltage
Field Module is being used, drive
automatically detects max current level for the
field.