Specifications
Standard Wiring Diagram
39
MR-J2S-MA (1)/MR-J2S-MA (4) type: Torque control operation
Notes:
1. Do not reverse the diode’s direction. Connecting it backwards could cause the amplifier to malfunction so that signals are not output, and emergency stop and other safety circuits are
inoperable.
2. Make sure that the sum of current flowing to external relays does not exceed 80mA. If it exceeds 80mA, supply interface power from an external source.
3. EMG (emergency stop) contact must be closed. If it is not closed, operation will be impossible.
4. Signals with the same name are connected inside.
5. CN1A, CN1B, CN2 and CN3 are all the same shape. Connecting them wrong can cause damage.
6. Malfunction signal (ALM) is turned on during normal operation when no alarms have been triggered.
7. Connect the shield wire securely to the plate inside the connector (ground plate).
8. Always connect the servo amplifier protection ground (PE) (for preventing shocks) to the control box’s protection ground (PE).
(Note 4, 5)
CN2
CON2
CN3
(Note 5)
(Note 5)
(Note 6) Malfunction
Zero speed detection
Speed limit in effect
Analog torque command ±8V/maximum
torque (in this wiring diagram,
+8V/maximum torque)
Analog speed limit ±10V/rated speed
(in this wiring diagram,+10V/rated
speed)
(Note 1, 2)
RA1
RA2
RA3
VDD
3
COM
13
ALM
ZSP
18
19
VLC
6
P15R
11
TC
12
2
LG
VLA
1
SD
PLATE
CN1B
EMG
15
SON
5
RES
14
RS2
8
SP2
7
RS1
9
SG
10
SG
20
COM
RA4
CN1A
9
SP1
SG
8
RD
10
19
SG
20
LZ
5
LZR
15
LA
6
LAR
16
LB
7
LBR
17
LG
1
OP
14
P15R
4
SD
(Note 1, 2)
CN5A
CN5B
(Note 8)
L1
L2
L3
L11
L21
CN4
Speed selection 1
Ready
Speed selection 2
(Note 3) Emergency stop
Reverse rotation select
Normal rotation select
Reset
Servo on
Main-circuit
power supply
Control-circuit
power supply
The connection differs according to the power
voltage.
→
Refer to the main circuit/control circuit power
supply connection examples (1) to (8).
Main circuit/control circuit
power supply connection
(Note 4, 5)
Servo amplifier
MR-J2S-
MA/A1/A4
10 meters (32.81 ft) max.
10 meters (32.81 ft) max.
10 meters (32.81 ft) max.
10 meters (32.81 ft) max.
2 meters (6.56 ft) max.
2 meters (6.56 ft) max.
Do not connect when using
an external power-supply.
Upper limit setting
Upper limit setting
Connector CN2 connection
The connection differs according to each servomotor.
→
Refer to the connector CN2 connection examples (9) to (11).
Connector CN3 connection
The connection differs according to the servo amplifier.
→
Refer to the connector CN3/CN4 connection examples (12)
and (13).
Connector CN4 connection
This is used only with the MR-J2S-11KA(4) or larger.
→
Refer to the connector CN3/CN4 connection example (13).
The 7kW or smaller capacity does not have connector CN4.
Connector CN5A/CN5B connection
This is used only with the MR-J2S-30KA(4) or larger.
→
Refer to the main circuit/control circuit power supply
connection example (6).
The 22kW or smaller capacity does not have connectors
CN5A and CN5B.
PLATE
Control common
Encoder Z-phase pulse (differential line driver)
Encoder A-phase pulse (differential line driver)
Encoder B-phase pulse (differential line driver)
Encoder Z-phase pulse (open collector)
Connector CON2 is used only with the MR-J2S-11KA(4)
or larger.
Note that this is used for maker adjustments and nothing
should be connected to it.
● Connection