Frequency Inverter ST600 High-Performance Multifunction Series VFD Optional peripheral
accessories
-362-
rated current.
2. The terminals P1, (+), PB (where applicable) and (-) are used to connect to brake accessories.
D.4.3 Cable arrangement
Motor cables must be arranged away from other cables. The motor cables of several VFDs can be
arranged in parallel. It is recommended that you arrange the motor cables, input power cables, and
control cables separately in different trays. The output dU/dt of the VFDs may increase
electromagnetic interference on other cables. Do not arrange other cables and the motor cables in
parallel.
If a control cable and power cable must cross each other, ensure that the angle between them is 90
degrees.
The cable trays must be connected properly and well grounded. Aluminum trays can implement local
equipotential.
The following figure shows the cable arrangement distance requirements.
Figure D-3 Cable arrangement distance
D.4.4 Insulation inspection
Check the motor and the insulation conditions of the motor cable before running the motor.
1. Ensure that the motor cable is connected to the motor, and then remove the motor cable from the
U, V, and W output terminals of the VFD.
2. Use a megameter of 500 V DC to measure the insulation resistance between each phase conductor
and the protection grounding conductor. For details about the insulation resistance of the motor,
see the description provided by the manufacturer.
To Next Page
Loading...
