33
EN
ATyS d H - 544077E - SOCOMEC
12.3.
The ATyS d H fails to switch to B-ON (Position II)
•
Check that the voltage on terminals “A1 and A2” or “B1 and B2” is available and within the limits of 220-240 VAC
•
Check that the circuit breaker for A power and/or B power is ON
•
Check that the power output between terminals CP and CN is within 220-240 VAC
•
Refer to section «12.4.1. Circuit and components check (Dual Power Supply output circuit – DPS)», page 34
After carefully checking the above go through the following fault-finding procedures:
A-ON
Position Indicator
check
B-ON
Controller check
NOK
AT1 & AT2 voltage
check
12.4.3 page 36
BT1 & BT2 voltage
check
12.4.3 page 36
NOK
Controller check
OK
OK
Check contacts of
switch ATS1 & ATS2
NOK
MGT
operation check
12.4.3 page 36
MGT
operation check
12.4.3 page 36
NOK
Check contacts of
switch BTS1 & BTS2
NOK
Component r
eplacement
12.5.2 page 39
OK
MGT contacts
check
NOK
OK
Diode check
12.4.4 page 37
NOK
OK
Main coil check
12.4.4 page 37
NOK