CTH200 Series PLC User Manual
Disassemble CPU or expansion modules
1) Remove the power of CTH200 CPU.
2) Dismantle all cables and wires on module.
3) Open the front cover to pull up the extended flat cable from neighbor expansion module if
there has one.
4) Remove the mounting screw or open the DIN clamp.
5) Remove the CPU and modules.
Disassemble terminal strip
1) Open the cover on terminal strip.
2) Plug the screwdriver into the slot of terminal block as shown in the following picture.
3) Pull down and pray the strip out.
Figure3-3 Dismantle the terminal strip
3.4 Grounding and Wiring
It’s important to implement wire and ground correctly for all electrical equipment, which can
ensure the best system operation features and provide better noise protection.
CTH200 PLC and related devices must all be powered off before grounding and wiring. The
available Electrical coding rules must be obeyed and related safety standards should be followed
while installing and operating all devices. Keep contact with regional standard request.
Please always following appropriate safety precautions and ensure that power of CTH200 PLC is
cut-off before attempting to install or remove the CTH200 PLC or related equipment.
Grounding or wiring with power could result in death or serious injury to personnel,
and/or damage to equipment.
Safety must be considered when designing ground and wire for CTH200 system in case
triggering the device malfunction. Therefore, all safety rules should be implemented to protect
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