Mitsubishi Melservo-J2-Super series Instruction Manual page 48

2. LINEAR SCALES
Connection cable connection example
10120-3000PE, 10320-52F0-008
(3M make or equivalent)
Servo
amplifier
MR-J2S-
CN2
LG
1
P5
19
MR
7
17
MRR
11 LG
20
P5
Plate
SD
ﾄ
(Note 7)
Connection cable
MR-J2HBUS05M or MR-J2HBUS1M
Note 1. The A/B/Z-phase differential input interface unit is required to use the A B Z-phase differential output linear scale.
2. If there is no Z phase, an alarm occurs and operation cannot be performed.
3. If there is no alarm output, change the setting of the following servo amplifier parameter.
Pr.62 0
4. The A-phase, B-phase, Z-phase and alarm signals must be provided as differential line driver outputs.
Linear scale
LA, LB, LZ, LAL
LAR, LBR, LZR, LALR
AM26LS31 or
equivalent
5. Set the internal setting switch (SW1) to CLOSE.
LINEAR
SW1
CLOSE
6. If the current consumption of the linear scale exceeds 150mA, supply external power.
7. Connect the shield wire to the plate (ground plate) in the connector securely.
8. Use a cable that can endure bending motion for a long time.
9. Because of RS-422 communication, the cable length is maximum 30m. However, it may be necessary to shorten the length
depending on the power supply voltage drop and linear scale specifications.
10. As the connection cable, use the MR-J2HBUS05M or MR-J2HBUS1M.
11. When a connection cable is to be fabricated, the cable length should be within 1m.
CN2
LG
P5 19
MR
17
MRR
LG 11
P5 20
SD Plate
P5L
(Note 6)
P5G
(Note10,11)
PE
LA
LAR
LB
LBR
LZ
LZR
LAL
LALR
(Note 1, 5)
A B Z-phase
differential input
interface unit
MR-J2S-CLP01
CN1A
1
P5L
14
1 LG
7
2 LA
3 LAR
4 LB
5 LBR
6 LZ
7 LZR
8 (LAL)
9 (LALR)
Plate SD
2 - 29
10114-3000PE, 10314-52F0-008
(3M make or equivalent)
(Note 8, 9)
(Note 7)
Phase difference 500ns or
more
1 pulse of Z phase = 1 cycle of A phase
1 s or more at alarm occurrence
(Note 6)
5V
0V
A phase
(Note 4)
B phase
(Note 4)
Z phase
(Note 2, 4)
(Alarm)
(Note 3, 4)
Shield