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3. SIGNALS AND WIRING
(2) When cable length exceeds 10m
When the cable length exceeds 10m, fabricate an extension cable as shown below on the customer side. In
this case, the motor brake cable should be within 2m long.
Refer to section 12.11 for the wire used for the extension cable.
(Note 2)
a) Relay connector for
extension cable
B
MR-BKS1CBL2M-A1-L
MR-BKS1CBL2M-A2-L
MR-BKS1CBL2M-A1-H
MR-BKS1CBL2M-A2-H
MR-BKS2CBL03M-A1-L
MR-BKS2CBL03M-A2-L
2m or less
50m or less
Electromagnetic
brake interlock
(MBR)
AWG20
AWG20
(Note 1)
B1
B2
Trouble
(ALM)
Servo motor
(Note 5)
(Note 3)
24VDC power
supply for
electromagnetic
brake
(Note 2)
b) Relay connector for motor
brake cable
Extension cable
(To be fabricated)
(Note 6)
(Note 4)
Note 1. Connect a surge absorber as close to the servo motor as possible.
2. Use of the following connectors is recommended when ingress protection (IP65) is necessary.
Relay connector Description IP rating
a) Relay connector for
extension cable
CM10-CR2P-
(DDK)
Wire size: S, M, L
IP65
b) Relay connector for
motor brake cable
CM10-SP2S- (D6)
(DDK)
Wire size: S, M, L
IP65
3. There is no polarity in electromagnetic brake terminals (B1 and B2).
4. When using a servo motor with an electromagnetic brake, assign the electromagnetic brake
interlock (MBR) to external output signal in the parameters No.PA04, PD13 to PD16 and PD18.
5. Shut off the circuit by interlocking with the emergency stop switch.
6. Do not use the 24VDC interface power supply for the electromagnetic brake.