Operation; Commissioning - Siemens 3TM Operating Instructions Manual

Operation

Dielectric tests
Checklist
Does the information on the rating plate match the order data (see p. 17)?
Ensure correct operating voltage.
Check the supply voltage and the performance data of the low-voltage
network are correct.
If necessary, clean the vacuum contactor (details on this in section
"Cleaning" on p. 39).
Check that a stable supply voltage is applied with a short-time load
exceeding 1.7 kW, otherwise the switching device will not reach the clos-
ing position or reach it with a delay.
If necessary, check the functionality of the manual unlatching (EMER-
GENCY STOP) in conjunction with the switch cabinet door.
Check that screw connections are tightened securely.
Check the plug connections for a firm seat.
Check the functioning of the auxiliary switches.
If necessary, check and adjust the customer's devices.
If the DIP switch setting has been changed by the customer:
Check the correct setting of the DIP switch on the electronic controller
(see p. 42).
Check changed MLFB entries on the rating plate.
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DANGER
Danger to life due to electric shock!
Electric shock can result in death, serious injury, or considerable material dam-
age.
• Do not touch live parts!
• Ensure that the vacuum contactor is operated only by qualified personnel
who are familiar with the operating instructions and observe the warning
notices!
• Check through all of the items on the checklist and ensure correct functioning
before commissioning!

Commissioning

To test the vacuum contactor in a state without supply voltage, it is necessary to
short-circuit and earth the terminals for supply voltage A1/A2 and, if applicable,
E1/E2 for the release voltage for magnetic unlatching.
Subsequently the following tests can be performed:
• Dielectric test of the main circuit as per DIN EN 62271-1 (Chapter 7.1.) and
• Dielectric test of the auxiliary and control circuits as per DIN EN 62271-1 (Chap-
ter 7.2.4.).
Before commissioning, check the following points to ensure that the vacuum contac-
tor is functioning faultlessly.
Continued on the next page
Operation

Notes
35