A - 10
CONFORMANCE WITH UL/C-UL STANDARD
(1) Servo amplifiers and servo motor s used
Use the servo amplifiers and servo motors wh ich comply with the standard model.
Servo amplifier :MR-J2S-10A to MR-J2S-22KA
MR-J2S-10A1 to MR-J2S-40A1
Servo motor :HC-KFS
HC-MFS
HC-SFS
HC-RFS
HC-UFS
HA-LFS
HC-LFS
(2) Installation
Install a fan of 100CFM (2.8m3/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-circ uit tests of the UL in the alternating-curre nt circuit, the servo
amplifier conforms to the above circuit.
(4) Capacitor discharge time
The capacitor discharge time is as listed below . To ensu re safe ty, d o no t tou ch the ch arg ing sec tio n fo r
15 minutes after power-off.
Servo amplifier Discharge time
[min]
MR-J2S-10A(1) 20A(1) 1
MR-J2S-40A(1) 60A 2
MR-J2S-70A to 350A 3
MR-J2S-500A 700A 5
MR-J2S-11KA 4
MR-J2S-15KA 6
MR-J2S-22KA 8
(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 In struction 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 provinc ial codes.