Inovance MDBUN-60-5T User Manual

Inovance MDBUN Series Braking Unit User Manual
Page 9 of 24
Terminal
Name
Description
P(+), BR
Terminals for
connecting the
braking resistor
Used for connecting the
braking resistor
Grounding
terminal
Used for grounding
The wiring precautions are as follows:
1. Do not reverse the polarity of the DC bus terminals (+) and (-). Otherwise, the drive and
braking unit may be damaged.
2. The grounding terminal and the power zero line terminal N must be different
terminals.
3. The terminal PE must be grounded reliably, and the resistance value of the
grounding wire must be smaller than 4 Ω.
4. The cable between the braking unit and the drive must not longer than 5 m and must be
twisted-pair, and cable between the braking unit and the braking resistor must not longer
than 10 m.
 Description of Control Terminals
The following table describes functions of the control terminals.
Terminal
Name
Description
DI
Digital input
In master mode: block input in the case of an
external fault
In slave mode: start or stop input of braking unit
DO
Digital output
Running/Stop signal output
TA/TB/TC
Fault relay output
Normally open (NO)/Normally closed (NC) contact,
which acts when the braking unit becomes faulty
24V and COM
Power supply/Common
terminal
I/O auxiliary power supply and reference ground
The following figure shows the internal equivalent circuit of the control terminals.
Figure 3-4 Internal equivalent circuit of the control terminals
Logic processing
circuit
COM
Internal equivalent
circuit of the control
board in the braking unit
0V
DI
DO1
External
signal wiring
Auxiliary
power supply
24V
24V+
T/A
T/B
T/C
The descriptions of the preceding figure are as follows:
1. Master braking unit
DI is used as block input. The master stops working and blocks the output when DI is valid.

Inovance MDBUN-60-5T Specifications

General

Brand	Inovance
Model	MDBUN-60-5T
Category	Industrial Equipment
Language	English