Sharp CP-SR421 User Manual download pdf (Page 46)

3. SIGNALS AND WIRING

3 - 5

(2) For 1-phase 200 V AC to 240 V AC power supply of MR-J4-10B to MR-J4-70B

POINT

Connect the 1-phase 200 V AC to 240 V AC power supply to L1 and L3. One of

the connecting destination is different from MR-J3 Series Servo Amplifier. When

using MR-J4 as a replacement for MR-J3, be careful not to connect the power

to L2.

MCCB

ALM

DICOM

DOCOM

CN3

RA1

P+

L11

L21

N-

CNP1

CNP3

CNP2

CN2

CN3

EM2

DOCOM

CN8

(Note 7)

(Note 5)

24 V DC

Malfunction (Note 4)

1-phase

200 V AC to

240 V AC

Servo amplifier

(Note 1)

(Note 10)

(Note 2)

Servo motor

Motor

Encoder

(Note 3)

Encoder

cable

(Note 6)

(Note 4)

Malfunction

RA1

OFF

EMG stop switch

(Note 5) Forced stop 2

(Note 9)

Short-circuit connector

(Packed with the servo amplifier)

(Note 8)

Main circuit power supply

Note 1.

10.

Always connect P3 and P4 terminals. (factory-wired) When using the power factor improving DC reactor, refer to section

11.1. Use either the power factor improving DC reactor or the power factor improving AC reactor.

Always connect P+ and D. (factory-wired) When using the regenerative option, refer to section 11.2.

For the encoder cable, use of the option cable is recommended. For connecting servo motor power wires, refer to Servo

Motor Instruction Manual (Vol. 3).

If disabling ALM (Malfunction) output with the parameter, configure up the power supply circuit which switches off the

magnetic contactor after detection of alarm occurrence on the controller side.

This diagram is for sink I/O interface. For source I/O interface, refer to section 3.8.3.

For connecting servo motor power wires, refer to each Servo Motor Instruction Manual (Vol. 3).

Use a magnetic contactor with an operation delay time (interval between current being applied to the coil until closure of

contacts) of 80 ms or less. Depending on the main circuit voltage and operation pattern, bus voltage decreases, and that

may cause the forced stop deceleration to shift to the dynamic brake deceleration. When dynamic brake deceleration is not

required, slow the time to turn off the magnetic contactor.

Configure up a circuit to turn off EM2 when the main circuit power is turned off to prevent an unexpected restart of the servo

amplifier.

When not using the STO function, attach a short-circuit connector supplied with a servo amplifier.

When wires used for L11 and L21 are thinner than wires used for L1 and L2, use a molded case circuit breaker. (Refer to

section 11.10.)

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Sharp CP-SR421 User Manual Page 46

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