Certification and Standard Compliance
‑91‑
● Terminals P⊕, C, and NΘ are used to connect optional parts. Do not connect these
terminals to an AC power supply.
● To protect the main circuit, separate and cover the surface that may come into
contact with the main circuit.
● The control circuit is the internal safety extra‑low voltage (SELV) circuit that must
be strictly insulated and isolated from other circuits. Make sure that the control
circuit is connected to the external SELV circuit.
● Do not allow unwanted objects to enter the wiring part of the terminal block.
● Do not solder the twisted conductors.
● The tightening torque may vary with terminals. Tighten terminal screws with the
specified tightening torque. You can use a torque screwdriver, torque ratchet, or
torque wrench to tighten terminal screws.
● When using an electric screwdriver to tighten terminal screws, set the electric
screwdriver to low speed to prevent damage to the terminal screws.
● Tighten the terminal screws with an angle not higher than 5°. Failure to comply
may damage the terminal screws.
Wiring requirements for the control circuit
Observe the requirements in UL508 during wiring.
Cable requirements
Cable dimensions must be compliant with requirements in NEC (National Electric
Code) and CEC (Canadian Electrical Code) Part I and local regulations.
● Use cables with copper conductors.
● The recommended cable for the main circuit is a class 2 600V indoor heat‑resistant
PVC cable with continuous maximum allowable temperature of 75 ° C. The
following conditions are used as premises:
■ Ambient temperature: ＜ 40°C.
■ Normal operating ratings
If the recommended cable specifications for peripheral devices or optional parts
exceed the applicable cable specification range, contact Inovance.
Cable selection
To comply with UL61800‑5‑1 and CSA C22.2 No. 274‑17, power cables used for SV660P
series servo drives must meet the following requirements:
● Compliant with NEC, Table 310‑16 of NFPA70.
● Comprised of copper conductors with a rated temperature not lower than 75°C
(167°F)
● Cable size must be 14AWG or higher.
● With a rated voltage not lower than the rated voltage of the servo drive
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