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Appendix 3. DYNAMIC BRAKING OPTION
G
GE
EN
NE
ER
RA
AL
L.. Dynamic braking (DB) enables the motor to be brought to a smooth and
rapid stop. This is achieved by dissipating the regenerative energy of the AC motor
across the resistive components of the Dynamic Braking option. For further details
on dynamic braking, see the option instruction sheet shipped with the dynamic
braking components.
The GPD 205 has an integral braking resistor. However, to make use of the Dynamic
Braking function requires addition of either a Braking Resistor (for 3% duty cycle) or
Braking Resistor Unit (for 10% duty cycle). See table below. In either case, interface
to external control circuitry is necessary to ensure that dynamic brake resistor
overheating is communicated to the drive as a fault condition.
GPD 205
MagneTek DB Components
Drive
Braking Resistor
Braking Resistor Unit
(3% Duty)
(10% Duty)
Voltage
HP
Part No. Qty Reqd
Part No. Qty Reqd
1/8
50185430 1
5P41-0825 1
115V,
1/4
50185430 1
5P41-0825 1
230V
3/4
50185431 1
5P41-0825 1
1
50185432 1
5P41-0827 1
2
(1)
50185433 1
5P41-0827 1
1/2
50185530 1
5P41-0835 1
3/4
50185530 1
5P41-0835 1
460V
1 & 2
50185530 1
5P41-0835 1
3
50185531 1
5P41-0836 1
(1)
230V units only.
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