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3. SIGNALS AND WIRING

3.1.2 Internal speed control mode

1

9

12

RA1

RA2

8

4

3

5

6

7

EMG

SON

ST1

ST2

LSP

LSN

SG

13

ALM

ZSP

CN3

VIN

CN1

4

3

SD

6

MO1

LG

MO2

10k

10k

A

A

CN3

20

19

21

17

16

18

LZ

LZR

LA

LAR

LB

LBR

LG

OP

SD

14

15

11

10

SA

RD

RA5

RA4

13

SG

Plate

(Note 9)
Servo configuration 
software

Personal
computer

CN1

(Note 8)

(Note 6)

Trouble

Zero speed

(Note 2, 4)

Control common
Encoder Z-phase pulse
(open collector)

Encoder Z-phase pulse
(differential line driver)

Encoder A-phase pulse
(differential line driver)

Encoder B-phase pulse
(differential line driver)

(Note 7)
Communication cable

2m(6.5ft) max.

(Note 7)
Monitor output
Max.   1mA 
Reading in
both directions

(Note 1)

Servo amplifier

(Note 8)

Speed reached

Ready

Plate

(Note 3, 5) Emergency stop

Servo-on

Forward rotation start

Reverse rotation start

(Note 5) Forward rotation stroke end

Reverse rotation stroke end

External

power

supply

24VDC

10m(32ft) max.

(Note 8)

(Note 8)

(Note 10)

Note: 1. To prevent an electric shock, always connect the protective earth (PE) terminal (terminal marked   ) of the servo amplifier to

the protective earth (PE) of the control box.

2. Connect the diode in the correct direction. If it is connected reversely, the servo amplifier will be faulty and will not output

signals, disabling the emergency stop and other protective circuits.

3. The emergency stop switch (normally closed contact) must be installed.

4. The sum of currents that flow in the external relays should be 80mA max. If it exceeds 80mA, supply interface power from

external.(Refer to Section 3.6.2)

5. When starting operation, always connect the emergency stop signal (EMG) and forward/ reverse rotation stroke end signal

(LSN/LSP) with SG. (Normally closed contacts)

6. Trouble (ALM) is connected with COM in normal alarm-free condition.

7. When connecting the personal computer together with monitor outputs 1, 2, use the branch cable (MR-E3CBL15-P). (Refer to

Section 13.1.3)

8. The pins with the same signal name are connected in the servo amplifier.

9. Use MRZJW3-SETUP 154E.

10. Connect the external 24VDC power supply if the output signals are not used.