SEW-Eurodrive MOVIDRIVE MDA90A-0160-503-X-S00

4
Installation
Braking resistors
Operating Instructions – MOVIDRIVE
®
modular
107
4.8.2 Protection against thermal overload of the braking resistor
INFORMATION
Guards for supply modules with nominal power larger than 10kW
It is not permitted to separate the connection between power supply module and
braking resistor. Isolating protection devices, such as fuses or miniature circuit break-
ers are not permitted.
External thermal circuit breaker TCB
MDP90A power supply module 10 kW
If an external TCB thermal circuit breaker is used, the following connection applies.
Connection
1 3 5
2 4 6
12
24
23
11
MDP90A
X7:2 -Temp_R
X7:1 +Temp_R
X3 +R X3 -R
23 24
5 2 1 4 3 6
[1]
[2]
9007218815961227
[1] TCB thermal circuit breaker
[2] Braking resistor
INFORMATION
The polarity of the connections 5 (+R) and 2 (-R) must be strictly adhered to during
connection of the TCB circuit breaker to the inverter.
• If the thermal circuit breaker trips, the signal contact is set (23-24 connection is
opened) and evaluated in the power supply module.
• The connection between power supply module and braking resistor is disconnec-
ted.
• This does not require a response by the PLC.
• It is not required to disconnect the supply system connection with an external
switching device.
• If the thermal circuit breaker trips, the power supply module switches all axis mod-
ules to "Output stage inhibit".
24748536/EN – 11/2017