Omron R88D-KN series User Manual page 162

4 System Design
Improving Control I/O Signal Noise Resistance
Positioning can be affected and I/O signal errors can occur if control I/O is influenced by noise.
• Use completely separate power supplies for the control power supply (especially 24 VDC) and the
external operation power supply. In particular, do not connect the 2 power supply ground wires.
• Install a noise filter on the primary side of the control power supply.
• If Brake Interlock Output (BKIR) is being used, do not use the same 24-VDC power supply for both
the brakes and the control I/O.
• If the control power supply wiring is long, add 1-µF laminated ceramic capacitors between the control
power supply and ground at the drive input section or the controller output section. This will improve
the noise resistance.
Reactor to Reduce Harmonic Current
 Harmonic Current Measures
• Use a Reactor to suppress harmonic currents. The Reactor functions to suppress sudden and
quick changes in electric currents.
Select the proper Reactor model according to the Servo Drive to be used.
Servo Drive model
R88D-KN01H-ECT-L (For single-phase input)
R88D-KN01L-ECT-L
R88D-KN02H-ECT-L (For single-phase input)
R88D-KN02L-ECT-L
R88D-KN04H-ECT-L (For single-phase input)
R88D-KN04L-ECT-L
R88D-KN08H-ECT-L
R88D-KN10H-ECT-L (For single-phase input)
R88D-KN15H-ECT-L (For single-phase input)
R88D-KN08H-ECT-L
R88D-KN10H-ECT-L
R88D-KN15H-ECT-L (For 3-phase input)
R88D-KN20H-ECT-L
R88D-KN30H-ECT-L
R88D-KN50H-ECT-L
R88D-KN75H-ECT-L
R88D-KN150H-ECT-L
R88D-KN06F-ECT-L
R88D-KN10F-ECT-L
R88D-KN15F-ECT-L
R88D-KN20F-ECT-L
R88D-KN30F-ECT-L
R88D-KN50F-ECT-L
R88D-KN75F-ECT-L
R88D-KN150F-ECT-L
Selecting Other Parts for Noise Resistance
This section explains the criteria for selecting the connection components required to improve noise
resistance.
4-48
Model
3G3AX-DL2002
3G3AX-DL2004
3G3AX-DL2007
3G3AX-DL2015
3G3AX-DL2022
3G3AX-AL2025
3G3AX-AL2055
3G3AX-AL2110
3G3AX-AL2220
3G3AX-AL4025
3G3AX-AL4055
3G3AX-AL4110
3G3AX-AL4220
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
Reactor
Rated
Inductance
current
1.6 A 21.4 mH DC reactor
3.2 A 10.7 mH
6.1 A 6.75 mH
9.3 A 3.51 mH
13.8 A 2.51 mH
10.0 A 2.8 mH AC reactor
20.0 A 0.88 mH
34.0 A 0.35 mH
67.0 A 0.18 mH
5.0 A 7.7 mH
10.0 A 3.5 mH
17.0 A 1.3 mH
34.0 A 0.74 mH
Type