ANYHZ FST-500 Series, Manual, Page: 25 / 151

FST 500 Manual
- Page 25 -
Digital inputs (M0~M5)

When using contacts or switches to control the digital inputs, please use high quality components to
avoid contact bounce.
Digital outputs (MO1)

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 away 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.

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.
Damaged insulation of wiring may cause personal injury or damage to circuits/equipment if it comes in
contact with high voltage.
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