Certification and Standard Requirements
‑99‑
Cable selection
To comply with UL61800‑5‑1 and CSA C22.2 No. 274‑17, power cables used for SV670P
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
● It is recommended to use cables compliant with UL758 Style 2517 and Style 2586
as motor main circuit cables.
Requirements of protective devices
To comply with UL61800‑5‑1, install a fuse/circuit breaker on the input side of the
drive to prevent accidents caused by short circuit in the internal circuit.
Install sufficient protective devices against short circuit in branch circuits according to
applicable regulations and this guide. The drive is applicable to circuits with a rated
breaking capacity lower than 5KA and 65 KA and a maximum voltage of 480 VAC (class
400 V).
Note
All breaker protective devices must be UL‑certified.
For the SV670 drive applied in North America, the recommended protective devices are as
follows:
Servo drive model SV670P****I
Circuit
breaker (A)
Class J fuse (A)
Recommended
inverse time lag
breaker
[1]
(A)
Single‑phase 220 V
Size A
S1R6 15 6 40
S2R8 15 6 40
Size C
S5R5 15 10 40
S7R6 15 10 100
Size D S012 20 20 100
Three‑phase 220 V
Size A
S1R6 15 6 40
S2R8 15 6 40
Size C
S5R5 15 10 40
S7R6 15 10 100
Size D S012 20 20 100
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