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CONFORMANCE WITH UL/C-UL STANDARD
(1) Servo amplifiers and servo motors used
Use the converter unit, servo amplifiers and servo motors which comply with the standard model.
Converter unit
:MR-HP30KA MR-HP55KA4
Servo amplifier series :MR-J2S-30K
MR-J2S-37K
MR-J2S-30K 4 to MR-J2S-55K 4
Servo motor series
:HA-LFS
(2) Installation
Install a fan of 100CFM (2.8 m
3
/min) air flow 4 [in] (10.16 [cm]) above the servo amplifier or provide
cooling of at least equivalent capability.
(3) Short circuit rating
This servo amplifier conforms to the circuit whose peak current is limited to 5000A or less. Having
been subjected to the short-circuit tests of the UL in the alternating-current circuit, the servo
amplifier conforms to the above circuit.
(4) Capacitor discharge time
The capacitor discharge time is as listed below. To ensure safety, do not touch the charging section for
20 minutes after power-off.
Converter unit
Servo amplifier
Discharge time [min]
MR-J2S-30KA/B
MR-HP30KA
MR-J2S-37KA/B
MR-J2S-30KA4/B4
MR-J2S-37KA4/B4
MR-J2S-45KA4/B4
MR-HP55KA4
MR-J2S-55KA4/B4
20
(5) Options and auxiliary equipment
Use UL/C-UL standard-compliant products.
(6) Attachment of a servo motor
For the flange size of the machine side where the servo motor is installed, refer to “CONFORMANCE
WITH UL/C-UL STANDARD” in the Servo Motor Instruction Manual.
(7) About wiring protection
For installation in United States, branch circuit protection must be provided, in accordance with the
National Electrical Code and any applicable local codes.
For installation in Canada, branch circuit protection must be provided, in accordance with the Canada
Electrical Code and any applicable provincial codes.
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