Omron ACCURAX G5 - Surge Absorber

4-28
4-3 Wiring Conforming to EMC Directives
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
4
System Design
Surge Absorber
 Use surge absorbers to absorb lightning surge voltage and abnormal voltage from power supply
input lines.
 When selecting surge absorbers, take into account the varistor voltage, the surge immunity and
the energy tolerated dose.
 For 200-VAC systems, use surge absorbers with a varistor voltage of 620 V.
 The surge absorbers shown in the following table are recommended.
Note 1. Refer to the manufacturers' catalog for operating details.
Note 2. The surge immunity is for a standard impulse current of 8/20 μs. If pulses are wide, either
decrease the current or change to a larger-capacity surge absorber.
External Dimensions
Equalizing Circuits
Manufacturer Model Surge immunity Type Comment
Okaya Electric
Industries Co.,
Ltd.
RAV-781BWZ-4
700 V ± 20% 2500 A
Block
Single-phase
100/200 VAC
Okaya Electric
Industries Co.,
Ltd.
RAV-781BXZ-4
700 V ± 20% 2500 A
3-phase 200 VAC
123
28
4.5
28.5 11
5.5
φ
4.2
41
200
For 3-phase (BXZ series)
For single-phase (BWZ series)
21
28
4.5
28.5 11
5.5
φ
4.2
41
200
(1) (2) (3)
For 3-phase (BXZ series)
For single-phase (BWZ series)
(1) (2)