Electro-Craft BRU-200 - Section VI -Troubleshooting and Maintenance; Introduction; LED Diagnostic Lnfonnation; Drive Module Leos

Troubleshooting and Maintenance
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SECTION VI -TROUBLESHOOTING AND MAINTENANCE
6.1 Introduction
The BRU-Series drive has been designed to provide troubleshooting aids that help isolate any problems in
a "module" of the system. A module
may be incoming power, PSM (BRU-500 only), OM, PM, motor and
encoder, controller, cables,
or mechanical system. BRU-Series drive circuitry is designed to prevent
problems in any one module from causing damage
to any other module. The cost-effective modular
package provides
for very· simple field replacement. ·The OM personality module "transfers" all information
and adjustment parameters
to the replacement module.
BRU-Series drive maintenance is virtually unnecessary. The primary consideration is
to insure BRU-Series
drive fans are operational and
to operate the BRU-Series drive in a properly sized and ventilated NEMA-12
(or equivalent) enclosure with proper fusing.
6.2 LED Diagnostic Information
6. 2.1 Power Supply Module LEOs (BRU-500 Only)
LED Label LED Color Description
PHASE LOSS .
.. .......... .. ....... Red ......................... Off = OK
On = i..oss of one phase of incoming AC power
OVERTEMP ............. .. .......... Red ....... ... . .... .......... Off = OK
On
= Excessive temperature of main heatsink
DISABLED
... .. ...................... Red ......................... Off = Not disabled
On = DC bus disabled from external enable input
PSM READY .................... .... Green ...................... Off = No DC bus voltage
On = DC bus voltage is present
If the green LED will
not come on (and no red LEOs come on or the indicated fault does not exist) and the
incoming line voltages are found
to be proper then there may be a PSM failure. Replace the PSM with
another unit.
6 .2.2 Drive Module LEDs
LED Label
LED
Color Description
1
.. ......................................... Green ...................... Off = Loss of one or more logic
supplies or external reset
pins connected.
On
= Logic supplies OK LED should
tum off within about 1 second at
power down. If
LED remains on at
power down, shunt regulator is not
functioning.
2,3,4 ......
.. .. ... ........... .. ........... Red ......................... Off = No fault
BRU-200/BRU-500 Brushless Drives Instruction Manual
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