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APPENDIX
App. - 11
(1) Selection of peripheral equipment and wire
The followings are selected based on IEC/EN 61800-5-1, UL 508C, and CSA C22.2 No. 274.
(a) Local wiring
The following table shows the stranded wires [AWG] rated at 75 °C/60 °C.
Recommended wire
Servo amplifier
75 °C/60 °C stranded wires [AWG]
L1/L2/
(Note 2)
24V/0V
U/V/W/
(Note 1, 2)
P/C
B1/B2
MR-JN-10A(1)/MR-JN-20A(1)/MR-JN-40A
14/14
14/14
14/14 (Note 3)
14/14
16/16
Note 1. Select wire sizes depending on the rated output of the servo motors. The values in the table are sizes based on the rated
output of the servo amplifiers.
2. The following shows the PE terminal specifications of the servo amplifier.
Screw size: M4
Tightening torque: 1.2 [N•m]
Recommended crimp terminal: R2-4 (JST)
Crimping tool: YPT-60-21 (JST)
3. To wire with the servo motor, use MR-PWS1CBL (option). To extend the wiring, use the AWG 14 wire size.
(b) Selection example of MCCB and fuse
Use a fuse (T class) or the molded-case circuit breaker (UL 489 Listed MCCB) indicated in the table
below. The T class fuses and molded-case circuit breakers in the table are selected examples based
on rated I/O of the servo amplifiers. When you select a smaller capacity servo motor to connect it to
the servo amplifier, you can also use smaller capacity T class fuses or molded-case circuit breaker
than ones in the table. For selecting ones other than Class T fuses and molded-case circuit breakers
below, refer to section 11.6.
Servo amplifier
Molded-case circuit breaker (240 VAC)
Fuse (300 V)
MR-JN-10A
NF50-SVFU-5A (50 A frame 5 A)
10 A
MR-JN-20A/MR-JN-10A1
NF50-SVFU-10A (50 A frame 10 A)
15 A
MR-JN-40A/MR-JN-20A1
NF50-SVFU-15A (50 A frame 15 A)
20 A
(c) Power supply
This servo amplifier can be supplied from star-connected supply with grounded neutral point of
overvoltage category set forth in IEC/EN 60664-1 and shown in the table of App. 5.7.1. However,
when you use the neutral point for single phase supply, a reinforced insulating transformer is
required in the power input section. For the interface power supply, use an external 24 VDC power
supply with reinforced insulation on I/O terminals.
Содержание MELSERVO-JN Series
Страница 31: ... 22 MEMO ...
Страница 49: ...2 6 2 INSTALLATION MEMO ...
Страница 181: ...5 30 5 DISPLAY AND OPERATION SECTIONS MEMO ...
Страница 199: ...6 18 6 GENERAL GAIN ADJUSTMENT MEMO ...
Страница 251: ...9 4 9 DIMENSIONS 2 SCR connector system 3M Receptacle 36210 0100PL Shell kit 36310 3200 008 Unit mm 34 8 39 5 22 4 11 0 ...
Страница 303: ...11 46 11 OPTIONS AND PERIPHERAL EQUIPMENT MEMO ...
Страница 351: ...12 48 12 SERVO MOTOR MEMO ...
Страница 445: ...13 94 13 POSITIONING MODE MEMO ...