
32
EN
ATyS d H - 544077E - SOCOMEC
12.2.
The ATyS d H fails to switch to A-OFF or B-OFF (Position I or position II to OFF)
•
Check that the voltage on terminals B1 and B2 is available and within the limits of 220-240 VAC
•
Check that the circuit breaker for 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-OFF
B-OFF
Position Indicator
check
A-ON
B-OFF
Controller check
NOK
BC1 & BC2 voltage
check
12.4.2 page 35
AT1 & AT2 voltage
check
12.4.3 page 36
NOK
Controller check
OK
OK
Component r
eplacement
12.5.1 page 38 / 12.5.2 page 39
NOK
Check contacts of
switch AX & BX
NOK
MGS
operation check
12.4.2 page 35
MGT
operation check
12.4.3 page 36
NOK
Check contacts of
switch ATS1 & ATS2
NOK
Component r
eplacement
12.5.2 page 39
OK
OK
NOK
MGS conctacts
check
NOK
SC Coil
operation check
MGT
contacts check
NOK
OK
OK
OK
NOK
MGC
operation check
12.4.2 page 35
OK
NOK
MGC
contacts check
OK
NOK
Diode check
12.4.4 page 37
Diode check
12.4.4 page 37
NOK
OK
OK
NOK
Main coil check
12.4.4 page 37
Main coil check
12.4.4 page 37
NOK