31
EN
ATyS d H - 544077E - SOCOMEC
12.
MAINTENANCE AND TROUBLE SHOOTING
DANGER ! Maintenance and trouble-shooting must only be carried out by qualified and authorised
personnel that are equipped with the right tools and protective wear whilst following safe procedures
and practices. Failure to do so may result in electric shock, burns, physical disability and/or death.
Furthermore note that any maintenance such as verification of the contacts: replacement on the main
coil will required the use of adequate lifting equipment.
12.1.
The ATyS d H fails to switch to A-ON (Position I)
•
Check that the voltage on terminals A1 and A2 is available and within the limits of 220-240 VAC
•
Check that the circuit breaker for A 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-OFF
B-ON
Controller check
NOK
AC1 & AC2 voltage
check
12.4.2 page 35
BT1 & BT2 voltage
check
12.4.3 page 36
NOK
Controller check
OK
OK
Component r
eplacement
12.5.2 page 39
NOK
Check contacts of
switch AX, BX, SC1
& SC2
NOK
MGC
operation check
12.4.2 page 35
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
OK
NOK
MGC
contacts check
MGT
contacts check
NOK
OK
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