5SGX10H6004 ABB Drive control thyristor module

Description

On the System board (DSQC 256A):
– 24 VDC then goes through K1CR relay contacts.
K1CR is controlled by the System board’s (DSQC
256A) enable signal. If the computer boards do not
detect any faults and the System board (DSQC 256A)
has no faults the “EN” LED on the front of the System
board (DSQC 256A) will light and K1CR will energize.
– 24 VDC then goes to K2CR contacts on the System
board (DSQC 256A).
This relay is also controlled by the computer. If the
computer has a serious error, fault or you are trying to
operate the motors while viewing the parameters, the
computer will not energize this relay. If these don’t
apply:
– Then the computer will energize K2CR allowing 24
VDC to go out System board (DSQC 256A)
AP41:XP1 pin C28.
– Then to the power unit KM3 terminal 33.
If KM3 is energized (it should be if power is ON):
– Then 24 VDC goes to KM1 relay coil terminal A2.
– This will pull in KM1 closing contacts 44 and 43
latching around the KM3 contacts 33 and 34.
– KM1 will close contacts 7 and 8 (part of the Brake
Release circuit).
– KM1 will close contacts 2, 4, and 6 sending 262
VAC to KM2 contacts 1, 3 and 5.
– KM1 will open contacts 11 and 12.*
– KM1 will open contacts 21 and 22.*
* These two sets of contacts and KM2 will disable the
KM3 relay.
The KM1 contacts 33 and 34 are for customer use.
These contacts can be accessed at XS3/XT3 terminals
A13 and A14.
The ERR LED will light if the System board (DSQC
256A) detects that neither MON or MOFF is on. This
means that one Run Chain is open.