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ELECTRIC SHOCK HAZARD
WAIT 3 MINUTES AFTER POWER IS DISCONNECTED BEFORE WORKING ON ANY
PART OF THE SYSTEM OR REMOVING THE TERMINAL COVER FROM THE DRIVE
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1. Before power is applied to the system the following items should be checked:
2. Mains power supply voltage is correct for the drive type.
3. Motor is of correct voltage rating and is connected in either star or delta as appropriate.
4. An encoder of the correct type is fitted to the motor properly with no plug. A, Ä, and B, B, are connected to
the drive. See Table 2.2.
5. All external wiring circuits such as Power connections, Control connections, Motor connections, Earth
connections are properly connected and secure.
6. Check for damage to equipment. Do not attempt to operate the equipment if damage is found.
7. Check for loose ends, clippings, drilling swarf, etc., lodged in the drive or ancillary equipment. Do not
attempt to operate the equipment until any such foreign objects have been completely removed.
8. If possible check that the motor can be turned freely and that the motor cooling fan is intact and free of
obstructions.
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Next ensure the safety of the complete system when the drive is energised. In particular ensure:
1. That no personnel are at risk of injury or inconvenience when the drive system is energised.
2. That rotation of the motor in either direction will not cause damage.
3. That other equipment will not be adversely affected by powering up.
Before carrying out any high voltage insulation resistance checks with a Megger or similar device
or performing point to point checking with a buzzer it is essential to completely disconnect the 620
Vector drive. Failure to comply may result in equipment damage and/or misleading results.
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Prepare to energise the drive and system as follows:
1. Prevent application of the main power supply by removal of the supply fuses or isolate via supply circuit
breaker.
2. Disconnect the load from the motor shaft, if possible.
3. If any of the drive control terminals are not being used then refer to Chapter 2, Table 2.5 to check whether
these unused terminals need to be tied high or low.
4. Check the external run contacts are open.
5. Check the external speed setpoint controls are all set to zero.
This manual was downloaded on www.sdsdrives.com
+44 (0)117 938 1800 - [email protected]