4-38
4-3 Wiring Conforming to EMC Directives
System Design
4
Radio Noise Filters and Emission Noise Prevention Clamp Cores
Use one of the following filters to prevent switching noise of PWM of the Servo Drive and to prevent
noise emitted from the internal oscillation circuit.
*1. Generally used for 1.5 kW or higher.
*2. Generally used for 1.5 kW or lower. The maximum number of windings is three turns.
*3. Generally used for 50/100 W. The maximum number of windings is two turns.
*4. Also used on the Servo Drive output power lines to comply with the EMC Directives. Only a
clamp is used. This clamp can also be used to reduce noise current on a frame ground line.
Dimensions
Model Manufacturer Application
3G3AX-ZCL1
*1
OMRON Servo Drive output and power cable
3G3AX-ZCL2
*2
OMRON Servo Drive output and power cable
ESD-R-47B
*3
NEC TOKIN Servo Drive output and power cable
ZCAT3035-1330
*4
TDK Encoder cable and I/O cable
95
26
78
80
12.5
72
50
7
39.5
3G3AX-ZCL23G3AX-ZCL1
51.5
17.5
3.0
6.5
34.0
ESD-R-47B
34
13
3039
ZCAT3035-1330
5.1 dia.
25.5 dia.
Two, M5
Three, M4
83±2
35
31.5
80
130
85
180±2
160±2
7 × 14 oval hole
7 dia.