
Procedure
1. Open the front door. Refer to section
2. Set the main switch to the
0 position (horizontal).
Warning:
General hazard
•
Be careful and use both your hands to turn the manual switch. The
manual switch turns quite arduous.
3. Make sure all the power modules are off:
•
Wait until the last LED on the power modules goes off
•
Wait until the fans stop
4. Measure the AC voltage. Refer to section
5. Make sure that all the measured voltages are 0 V.
6. Measure the DC voltage. Refer to section
7. Make sure that all the measured voltages are 0 V.
8. Close the front and the right door. Refer to section
.
7.2.2
Measure the AC voltage
Preliminary requirements
•
Installation engineer
•
Owner
•
Only do this procedure if
a different procedure refers
to this procedure.
•
AC and DC tester
Procedure
1. Measure the AC voltage between the terminals on the surge protection device
switch:
•
L1, L2 and L3 to N
•
L1 to L2
•
L1 to L2
•
L2 to L3
Use the voltage tester.
Note: The surge protection device switch shows the indications
L1, L2, L3
and
N.
Maintenance and cleaning
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