Lenze ECSCExxx Power supply module User Manual
Page 47
Electrical installation
Power terminals
Connection plan for mimimum wiring with external brake resistor
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47
EDBCSXE040 EN 7.0
5.3.4
Connection plan for mimimum wiring with external brake resistor
(
Stop!
ƒ
Always operate the ECS power supply modules with a brake resistor.
ƒ
A parallel wiring of internal and external brake resistor is not permissible!
ƒ
Implement the thermal contact of the brake resistor into the system
monitoring so that the mains supply of the power supply module will be
switched off in case the brake resistor will be overheated.
ƒ
Read the documentation for the external brake resistor. Observe the safety
instructions contained therein.
If the power supply module needs a high amount of braking power when it comes as
standard built−in unit or in push−through technique design (ECSEE / ECSDE), an external
and more powerful brake resistor can be connected instead of the internal brake resistor.
A power supply module in cold plate technique design (ECSCE) is not provided with an
internal brake resistor so that this version always requires an external brake resistor
(Rbext).
ƒ
Connect the brake resistor to X22/BR1 and X22/+UG.
ƒ
Connect the thermal contact (NC contact) of the external brake resistor to X6/T1
and X6/T2.