166
Operating Instructions – Electronic Motor DRC.-..-SNI
12
Braking resistors
Technical Data and Dimension Sheets
12.3.2 4Q operation with integrated brake coil
• In 4Q operation, the brake coil can be used as a braking resistor.
• The brake coil (without brake disk) is also integrated in motors without a brake.
• Brake voltage is generated internally within the unit, which means it is mains-
independent.
• 4Q operation with only the integrated brake coil is recommended for applications with
very small amounts of regenerative energy.
• If the amount of regenerated energy is too high for the application, you can use an
additional internal or external braking resistor.
BY1C (DRC1)
The following figure shows the permitted regenerative load on the BY1C brake coil
(DRC1):
4860846731
c/h = cycles per hour
9000
0
1000
2000
3000
4000
5000
6000
7000
8000
110
100 1000 10000
[J]
[c/h]
BY1C
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