Schneider Electric Altivar 58 VW3-A58101 Instrukcja Użytkownika Pobierz pdf (Strona 90)

ALTIVAR

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58 Keypad Display VVDED397047US R8/01

Chapter 3 — Diagnostics and Troubleshooting 08/01

PROCEDURE 3: CHECKING THE PERIPHERAL EQUIPMENT

The following equipment may need to be checked. Follow the

manufacturers’ procedures when checking this equipment.

1. A protective device, such as a circuit breaker, may have tripped or a

fuse may have blown.

2. A switching device, such as a contactor, may not be closing at the

correct time.

3. Conductors may require repair or replacement.

4. Connection cables to the motor or high resistance connections to

ground may need to be checked. Follow NEMA standard procedure

WC-53.

5. Motor insulation may need to be checked. Follow NEMA standard

procedure MG-1. Do not apply high voltage to U, V, or W. Do not

connect the high potential dielectric test equipment or insulation

resistance tester to the drive controller since the test voltages used

may damage the drive controller. Always disconnect the drive

controller from the conductors or motor while performing such tests.

DIELECTRIC TESTS WHILE CONNECTED

CAN CAUSE EQUIPMENT DAMAGE

• Do not perform high potential dielectric tests on circuits while the

circuits are connected to the drive controller.

• Any circuit requiring high potential dielectric tests must be

disconnected from the drive controller prior to performing the test.

Failure to follow these instructions can result in injury or

equipment damage.

CAUTION

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Schneider Electric Altivar 58 VW3-A58101 Instrukcja Użytkownika Strona 90