ABB DCS8 Series, Оригинальное руководство пользователя

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fast flash
green
blue green
Two-channels error: CH1 has been
unaccepted and then accepted
again while CH2 remained accepted. Check installation. Restore by
opening and closing both
CH:s at the same time.
fast flash
green
blue
fast flash
green
Reading error on R1 and R2.
Check installation. Restore by
opening and closing both
CH:s at the same time.
red
fast flash
blue
red
Failsafe mode, a new setting has
been stored. Power cycle the unit to use
the new setting.
red flash red red
Failsafe mode, the system is waiting
for a new setting. Change the timer setting
switch.
red
fast flash
red
red The safety relay is in failsafe mode.
Check installation and power
cycle.
red
fast flash
red fast flash
red Failsafe mode due to short circuit
between CH2 and 24 VDC or T1 Check and remove the short
circuit.
fast flash
red fast flash
red
red
Failsafe mode due to short circuit
between CH1 and 24 VDC or T2 Check and remove the short
circuit.
For more information see
2TLC010002M0201
.
+Q957 Maintenance
After the operation of the circuit is tested at start-up, it does need scheduled maintenance testing
during its specified lifetime depending on its usage.
In addition to proof testing, it is a good practice to check the operation of the function when other
maintenance routines of the machinery are carried out.
If you change any wiring or component after the start up, or restore parameters to their default values:
−
Use only ABB approved spare parts.
−
Register the change to the change log for the safety circuit.
−
Test the safety function again after the change.
Follow the rules given in sQ957 Startup and acceptance test on page 12.
−
Document the tests and store the report into the logbook of the machine.
Proof test interval
After the operation of the safety function is validated at start-up, the safety function must be
maintained by periodic proof testing. In high demand mode of operation, the maximum proof test
interval is 20 years. In low demand mode of operation, the maximum proof test interval is one year (high
or low demand as defined in IEC 61508, EN/IEC 62061 and EN ISO 13849-1).