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ATyS d H - 544077E - SOCOMEC
12.4.2. Change MGC circuit check (Contactor closing coil)
Ensure that any automatic controls in auxiliary equipment is put to manual mode before carrying out an MGC circuit
check.
AC1, AC2 power input
BC1, BC2 power input
MGS: Contactor MC-22b
BX: Micro s/w DZ-10GW-1B
SC: Selective coil
AX: Micro s/w DZ-10GW-1B
SC1: Micro s/w Z-15GW-B
MGC:
Contactor MC-40a
SC2: Micro s/w DZ-10GW-1B
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Give the A-ON order by powering AC1 and AC2 terminals with an impulse command.
•
Should MGC not operate check the contacts of AX, BX, SC1, SC2.
Action required: Replace any component found defective.
•
Similarly give the B-ON order by powering BC1 and BC2 terminals with an impulse command.
•
If MGS is not operating properly then check that contacts SC1 and SC2 operate solenoid SC.
Action required: Replace any component found defective.