YASKAWA S-V Series Safety Precautions page 24

6 Installation Conditions of UL Standards
To adapt SERVOPACKs to the UL standards, make sure that the following
conditions are met.
• Pollution degree: 2
• Protection class: 10
• Altitude: 1000 m max.
• Tightening torque: Varies*
• The end user must use a transient suppressive device on the 24 VDC con-
trol power input of the 400 V main power input type SERVOPACKs to
limit transient overvoltages to 500 V maximum.
(Example: surge absorber, etc.)
• Current capacity: Varies*
* 1. Use the maximum tightening torque listed in the table of Wire Size and
Tightening Torque for Connectors and for Terminal Screw.
* 2. Install the fuse or circuit breakers listed in the 3.1 Molded-case Circuit
Breaker and Fuse in accordance with the guidelines of NEC.
* 3. The following restrictions apply, depending on the SERVOPACKs used.
SERVOPACK
Model SGDV-
180A, 200A
330A
470A, 550A
590A, 780A
210D, 260D
280D, 370D
2,
Available rated current for modeled-case circuit breaker: 40 A or
less
• Available rated current for non-time delay fuse: 70 A or less
• Available rated current for time delay fuse: 40 A or less
• Do not use single wires.
• Available rated current for molded-case circuit breaker: 60 A or
less
• Available rated current for non-time delay fuse or time delay
fuse: 60 A or less
• Available rated current for molded-case circuit breaker: 100 A or
less
• Available rated current for non-time delay fuse or time delay
fuse: 100 A or less
(Available rated current for class J non-time delay or faster fuse:
125 A or less)
• Available rated current for molded-case circuit breaker: 60 A or
less
• Available rated current for non-time delay fuse: 60 A or less
• Available rated current for time delay fuse: 35 A or less
• Available rated current for molded-case circuit breaker: 80 A or
less
• Available rated current for non-time delay fuse: 125 A or less
• Available rated current for time delay fuse: 75 A or less
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3
*
Restrictions
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