Omron G5 Series User Manual page 252

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.
Manufacturer
Okaya Electric
Industries Co., Ltd.
Okaya Electric
Industries Co., Ltd.
Note 1 Refer to the manufacturers' catalog for operating details.
2 The surge immunity is for a standard impulse current of 8/20 s. If pulses are wide, either decrease the
current or change to a larger-capacity surge absorber.
External Dimensions
For single-phase (BWZ series)
φ4.2
1 2
41
Equalizing Circuits
For single-phase (BWZ series)
4 - 28
Model Surge immunity
R·A·V-781BWZ-4 700 V ± 20%
R·A·V-781BXZ-4 700 V ± 20%
For 3-phase (BXZ series)
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User's Manual
Type
2,500 A Block
2,500 A
For 3-phase (BXZ series)
φ4.2
1 2 3
41
Comment
Single-phase
200 VAC
3-phase 200 VAC