7-12 Trips and Fault Finding
DC590+ Series DC Digital Drive
Frame H
The power board has six LEDs indicating further trip information, and general status of the unit.
The LEDs go out to indicate a problem (note that LED1 may also flash as the SMPS attempts to power-up repeatedly, indicating a fault).
FIELD HEATSINK
STACK THERMOSTATS
field heatsink temperature normal
armature heatsink temperature normal
HEATSINK TRIP
3 PHASE FAILED
Trips
TRIGGER BOARD PRESENT
ACCTS PRESENT
THYRISTOR FUSES
LED2
LED5
LED4
LED3
LED6
SMPS OK
LED1
thyristor fuses status
ac current transformer connection status
trigger board connection status
switched mode power supply on
ACCTS FAILED
Power Board
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