Chapter II Installation and Wiring
39
The drive and the servo motor must be reliably grounded, and the grounding wire
should be thick wire (above 2.0mm
2
) if possible.
Do not bend the cable or make it bear any tension. The diameter of the core wire
of cables for signal is extremely small, i.e. 0.2mm or 0.3mm.
For signal cables and encoder feedback cables, please use shielded twisted pair.
The length of cables for command input signal shall not exceed 3m, while the
length of encoder feedback cables shall not exceed 30m.
Only one wire can be inserted into one wire socket of the connector.
Please use a noise filter to avoid radio frequency interference. Install the noise
filter on the input side of the power cord when you are using it around residential
houses or worrying about radio frequency interference. Since the servo drive is a
set of industrial equipment, countermeasures are not taken to fight against radio
frequency interference.
Install the host device and noise filter around the servo drive if possible.
Install a surge suppressor on the coils of the relay and the electromagnetic
contactor.
Please separate the strong power lines with the weak power lines during wiring,
and keep a spacing of above 30cm. Do not put them in the same pipeline or bind
them together.
Do not share a power supply with the electric welding machine and electrical
discharge machine, etc. Even if the power supply is not shared, please install a
noise filter on the input side of the power cord when there is a high-frequency
generator nearby.
Use a circuit breaker or fuse for wiring to protect the power cord.
The servo drive has no built-in ground protection circuit. To make the system
safer, please install a leakage circuit breaker for overload and short circuit
protection or a special leakage circuit breaker for ground protection with a circuit
breaker.
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