Delta Electronics 230V Series, 460V Series, 115V Series manual Digital outputs MO1, MCM, General

Chapter 2 Installation and WiringVFD-S Series

Digital outputs (MO1, MCM)

Make sure to connect the digital outputs to the right polarity, see wiring diagrams. When connecting a relay to the digital outputs, connect a surge absorber or fly-back diode across the coil and check the polarity.

General

Keep control wiring as far as possible from the power wiring and in separate conduits to avoid interference. If necessary let them cross only at 90º angle.

The AC motor drive control wiring should be properly installed and not touch any live power wiring or terminals.

NOTE

If a filter is required for reducing EMI (Electro Magnetic Interference), install it as close as possible to AC drive. EMI can also be reduced by lowering the Carrier Frequency. When using a GFCI (Ground Fault Circuit Interrupter), select a current sensor with sensitivity of 200mA, and not less than 0.1-second detection time to avoid nuisance tripping.

DANGER!

Damaged insulation of wiring may cause personal injury or damage to circuits/equipment if it comes in contact with high voltage.

Revision August 2006, SE08, SW V2.61 2-27