ABB SCC-K, Руководство оператора

Страница: 15 / 24

42/23-52 EN Rev. 2 SCC-K NO
2
/ NO Converter Operator’s Manual 15
Troubleshooting
Problem Cause Corrective Action
No mains power Check that mains cable fits properly (X1);
ok?
Sub-D plug not inserted in
socket X2 Check whether sub-D plug is present and is properly
plugged in;
ok?
LEDs do not light
up
Valves do not
switch over
Temperature
controller out of
order
Fuses F1, F2 defective Check fuses and replace if necessary.
Heater defective Measure voltage at terminals X4/2 and 3;
ok?
Replace heater;
not ok?
Temperature controller
defective Measure voltage at terminal X4/6 and 7;
Voltage < 8 V DC?
Check controller according to operator’s manual;
Voltage > 8 V DC?
Converter does
not heat up
Solid-state relay defective Replace solid-state relay.
No mains supply (see
above)
Sub-D plug not inserted
into socket X2 (see above)
See above
Internal circuit:
No solder link 1-6 in sub-
D plug Check sub-D plug and if necessary solder link
Valves do not
switch over
LEDs do not light
up
External circuit:
Error in external control Check external control
Valves do not
switch over
LEDs light up
Valves defective Check that valves function
Valves defective (see
above) See above No sample gas
flow
Gas sample lines blocked
or leaking Check gas sample lines;
Check for gas-tightness (see page 14)
Cartridge does not heat
up (see above) See above No conversion
No sample gas flow (see
above) See above