GK600E User Manual
Chapter 3 Installation and Wiring
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3.10 Instruction of Signal Switches
Fig. 3-22 Jumper diagram of signal switching
3.11 EMI Solutions
Due to its w orking principle, the drive w ill inevitably produce certain noise that may influence
and disturb other equipment. Moreover, since the internal w eak electric signal of drive is also
susceptible to the interference of drive itself and other equipment, EMI problems shall be
inevitable. In order to reduce or avoid the interference of drive to external environment and
protect drive against interference from external environment, this section makes a brief
description of noise abatement, ground handling, leakage current suppression and the
application of pow er line filters.
3.11.1 Noise Abatement
When peripheral equipment and drive share the pow er supply of one system, noise from the
drive may be transmitted to other equipment in this system via pow er lines and result in
misoperation and/or faults. In such a case, the follow ing measures could be taken:
Mount input noise filter at input terminal of the drive;
Mount pow er supply filter at pow er input terminal of affected equipment;
Use isolation transformer to isolate the noise transmission path betw een other equipment
and the drive.
As the w iring of peripheral equipment and the drive constitutes a circuit, the unavoidable
earthing leakage current of the drive w ill cause equipment misoperation and/or faults.
Disconnect the grounding connection of equipment may avoid this misoperation and/or faults
Sensitive equipment and signal lines shall be mounted as far aw ay from the drive as possible.
Designation
Function
Default
setting
S1
Selection of 485 termination resistor; ON :100
Ω termination
resistor provided; OFF: no termination resistor
OFF
S2
Type Selection of AI1 analog signal:
I: current input (0~20mA); V: voltage input (0~10V)
V: 0~10V
S3
Type Selection of AO1 analog signal:
I: current output (0~20mA); V: voltage output (0~10V)
V: 0~10V
ON
OFF
AI1 AO1
485
V
I
I
V
S2
S1
S3
