Mitsubishi Electric MELSERVO-J4 MR-J4 A Series - 3.10 Servo motor with an electromagnetic brake

3. SIGNALS AND WIRING
3 - 57
3.10 Servo motor with an electromagnetic brake
3.10.1 Safety precautions
Cautions
Configure an electromagnetic brake circuit so that it is activated also by an
external EMG stop switch.
ࠨ࡯ࡏࡕ࡯࠲
㔚⏛
ࡉ࡟࡯ࠠ
B
U
RA
A
LM(
᡿㓚
)
䉥䊐߹ߚߪ
MBR(
㔚⏛ࡉ࡟࡯ࠠࠗࡦ࠲
ࡠ࠶ࠢ
)
䉥䊐ߢㆤᢿߒߡߊߛߐ޿
ޕ
DC24V
㕖Ᏹ஗ᱛࠬࠗ࠶࠴ߢ
ㆤ
ᢿߒߡߊߛߐ޿
ޕ
The electromagnetic brake is provided for holding purpose and must not be used
for ordinary braking.
Before operating the servo motor, be sure to confirm that the electromagnetic
brake operates properly.
Do not use the 24 V DC interface power supply for the electromagnetic brake.
Always use the power supply designed exclusively for the electromagnetic brake.
Otherwise, it may cause a malfunction.
POINT
Refer to the Servo Motor Instruction Manual (Vol. 3) for specifications such as
the power supply capacity and operation delay time of the electromagnetic
brake.
Refer to the Servo Motor Instruction Manual (Vol. 3) or section 11.19 for the
selection of a surge absorber for the electromagnetic brake.
Note the following when the servo motor with an electromagnetic brake is used.
1) The brake will operate when the power (24 V DC) turns off.
2) The status is base circuit shut-off during RES (Reset) on. When you use the motor in vertical axis
system, use MBR (Electromagnetic brake interlock).
3) Turn off SON (Servo-on) after the servo motor stopped.
(1) Connection diagram
B2
B1
ࠨ࡯ࡏࡕ࡯࠲
DC24V
ALM
(
᡿㓚
)
ࠨ࡯ࡏࠕࡦࡊ
DICOM
MBR
DOCOM
MBR
RA1
RA1
U
B
(
ᵈ
1)
(
ᵈ
2)
DC24V
Note 1.
2.
Create the circuit in order to shut off by interlocking with the emergency stop switch.
Do not use the 24 V DC interface power supply for the electromagnetic brake.
24 V DC
24 V DC
(Note 2)
24 V DC
Contacts must be opened when ALM (Malfunction)
or MBR (Electromagnetic brake interlock) turns off.
Servo motor
Electromagnetic brake
Contacts must be opened with the
EMG stop switch.
Servo amplifier
(Malfaunction)
(Note 1)
Servo motor