Electrical Installation
‑167‑
Figure 8‑47 Wiring of the high‑speed digital output terminal
Wiring the relay output terminal
The inductive load (relay, contactor, and motor) causes voltage peak after the current
is disconnected. To minimize the interference at the cutoff, use a voltage dependent
resistor (VDR) at the relay contact for protection and install absorption circuits such
as VDRs, RC absorption circuits, and diodes on the inductive load, as shown in "
Figure
8–48 Anti‑interference processing of relay output terminals
"
on page 167
.
Figure 8‑48 Anti‑interference processing of relay output terminals
Note
The power supply connected with the control circuit must use class 2 power supply; other‑
wise, the operation performance of the AC drive will be degraded.
Requirements on tubular terminals
Use tubular terminals with insulation sheath. Keep the exposed conductor of a single
or twisted cable no longer than 6 mm, as shown in "
Figure 8–49 Requirements on
tubular terminals of the control circuit cable
"
on page 168
.
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