ATyS t M - 542931D - SOCOMEC
29
EN
15.
TROUBLESHOOTING GUIDE
PROBLEM
ACTIONS
EXPECTED RESULTS
Product is off, i .e . no
LEDs are ON .
Check for 176-288VAC across terminals 1 and 7 on switch I and II .
The AUT LED is ON with
manual operation cover closed .
SOURCE1 availability
LED is OFF .
Voltage and frequency auto configuration:
- Step 1: open manual operation cover.
- Step 2: set dip switch A-B to position B.
- Step 3: when all LEDs are on, return dip switch A-B to position A
- Step 4: re-close the cover.
SOURCE 1 LED is ON .
Check the value of the voltage and frequency thresholds (dip switch
C-D) .
Set to maximum level and reduce later if applicable .
Check the following parameters:
- network type: Must be a 3 phase n neutral
(or transformer),
- nominal voltage: Must be between 176 and 288 Vac,
- nominal frequency: Must be between 45 and 65 Hz.
SOURCE 2 availability
LED is OFF .
Voltage and frequency auto configuration:
- Step 1: open manual operation cover,
- Step 2: set dip switch A-B to position B,
- Step 3: when all LEDs are on, return dip switch A-B to position A,
- Step 4: re-close the cover.
SOURCE 2 LED is ON .
Check the value of the voltage and frequency thresholds (dip switch
C-D) .
Set to maximum level and reduce later if applicable .
Check the following parameters:
- network type: Must be a 3 phase n neutral (or
transformer),
- nominal voltage: Must be between 176 and 288 Vac,
- nominal frequency: Must be between 45 and 65 Hz.
Switch remains off
after loss of Priority
source ; i.e. no LEDs
are ON .
Check for 176-288VAC across power terminals 1 and 7 on switch II . The AUT LED is ON with
manual operation cover closed .
The switch does not
transfer after loss of
priority source .
Check that the product is not in manual mode:
- Automatic mode = Cover closed
- Manual mode = Cover open .
The AUT LED is ON .
Check that automatic operation has not been inhibited by an
external order (terminals 207-210) .
Check that the backup source is seen as available ; appropriate
source availability LED is ON .
If it is not ON refer to above actions for “SOURCE x availability LED
is OFF” .
Check that automatic operation has not been inhibited by an
external order (terminals 207-210) .
The AUT and the backup
SOURCE LEDs are ON .
Check FT (Main Failure Timer) configuration, which can be
configured between 0 and 30s .
The changeover will only take place at the end of FT .
When FT reaches zero the
switch will operate to position 0
before finally transferring to its
backup position .
The switch does not
return to its priority
position after the
priority source has
been restored .
Check that the product is not in manual mode:
- Automatic mode = Cover closed,
- Manual mode = Cover open .
The AUT LED is ON .
Check that automatic operation has not been inhibited by an
external order (terminals 207-210) .
Check that the priority source is seen as available ; appropriate
source availability LED is ON .
If it is not ON refer to above actions for “SOURCE x availability LED
is OFF” .
The AUT and the priority
SOURCE LEDs are ON .
Check RT (Main Return Timer) configuration which can be
configured between 0 and 30min .
The changeover will only take place at the end of RT .
When RT reaches zero the
switch will operate to position 0
before finally transferring to its
priority position .