Electrical Installation
‑144‑
the encoder cable shield is increased due to parasitic inductance of the cable. In
this case, you can disconnect the encoder shield from the grounding (PE) terminal
of the AC drive.
Figure 7‑46 PG card installation screws
I/O signal cable routing requirements
● I/O signals include analog input (AI) signals, analog output (AO) signals, digital
input (DI) signals, digital output (DO) signals, and relay output signals. Before
wiring the I/O terminals, disconnect the main power supply and ensure that the
danger indicator of the AC drive is off.
● Separate I/O signal cables from the main circuit cables (RST and UVW) and other
power cables (or electric power cables) by a distance of at least 30 cm. Failure to
comply may result in interference to I/O signals.
● Separate the cable connecting the relay output terminal from other I/O signal
cables by a distance greater than 30 cm. Failure to comply may result in
malfunction of the AC drive and equipment.
7.4.4 Cable Routing Requirements
1. Separate signal cables from power cables
When analog signals are used for remote control on the cabinet module, separate
signal cables from high‑voltage circuits (power input, inverter output, and braking
resistor connection cables) by a distance above 50 cm to reduce interference of
analog signals from the AC drive and other equipment. Comply with the preceding
requirements even in the control cabinet.
2. Analog control signal cable requirements
To Next Page
Loading...
