Mitsubishi Electric MELDAS MDS-B-SVJ2 Series - Motor Brake Control Signal (MBR) Output Circuit

Chapter 2 Wiring and Connection
2-31
2-8-4 Motor brake control signal (MBR) output circuit
The motor brake power supply is controlled via a relay. When using an inductive load, install a diode.
(Tolerable current: 40mA or less, rush current: 100mA or less)
When using an internal power supply
When using an external power supply
POINT
When using an internal power supply, the power supply can be directly
connected to VDD if only the digital output (MC, MBR) is being used. When
using the digital input (EMGX), always connect between VDD and COM.
CAUTION
1. Always install a surge absorber near the motor's brake terminal to eliminate
noise and protect the contacts. Refer to section "7-4-2 Surge absorber".
2. The magnetic brakes cannot be directly driven with the output signal from
the servo amplifier. Always install a relay.
3. The magnetic brakes cannot be driven by the servo amplifier's VDD
(24VDC). Always install a separate power supply.
MDS-B-SVJ2
10 VDD
5 COM
13 MBR
3 SG
CN3
24VDC
24VDC
Brake control relay
(The brake cannot be directly driven
by an internal power supply.)
A
lways install a
surge absorber.
Brake
Surge
absorber
The servo amplifier will
fail if the diode polarity
is incorrect.
MDS-B-SVJ2
10 VDD
5 COM
13 MBR
3 SG
CN3
24VDC
24VDC
27VDC
or less
A
lways install a
surge absorber.
Brake
Surge
absorber
The servo amplifier will
fail if the diode polarity
is incorrect.
Brake control relay
(Install a relay even when
using an external power supply.)