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Variable speed Drives, AC and DC Motors — Ex-Ed can supply you with a full range of control systems, installation options and services.
Parker SSD Brake Resistors Dynamic Braking
650 / 650V / 690
Online Price from £14
During deceleration, or with an over hauling load, the motor acts as a generator. Energy flows back from the motor into the dc link capacitors within the drive, causing their voltage to rise. If this voltage exceeds a maximum value, the drive will trip to protect the capacitors and internal power devices. To increase the drive’s dynamic braking capability, high power resistor(s), connected across the dc link, allow the dissipation of this excess energy for short term stopping or braking.
Code: CZ389853
Brake Resistance: 100 Ohms
Maximum Wattage: 100 Watts
Shipping Weight: 0.400 Kg
Quantity: 1
£14.00 + VAT
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Code: CZ467714
Brake Resistance: 200 Ohms
Maximum Wattage: 100 Watts
Shipping Weight: 0.400 Kg
Quantity: 1
£16.00 + VAT
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Code: CZ467715
Brake Resistance: 500 Ohms
Maximum Wattage: 60 Watts
Shipping Weight: 0.300 Kg
Quantity: 1
£16.00 + VAT
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Code: CZ467717
Brake Resistance: 100 Ohms
Maximum Wattage: 200 Watts
Shipping Weight: 0.500 Kg
Quantity: 1
£31.00 + VAT
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Code: CZ463068
Brake Resistance: 56 Ohms
Maximum Wattage: 200 Watts
Shipping Weight: 0.400 Kg
Quantity: 1
£46.00 + VAT
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Code: CZ467716
Notes: Two resistors in parallel for 28ohms. Frame D, E and F
Brake Resistance: 56 Ohms
Maximum Wattage: 500 Watts
Shipping Weight: 0.500 Kg
Quantity: 1
£67.00 + VAT
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Code: CZ388396
Notes: Two resistors in parallel for 18ohms. Frame E and F
Brake Resistance: 36 Ohms
Maximum Wattage: 500 Watts
Shipping Weight: 0.500 Kg
Quantity: 1
£94.00 + VAT
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Technical Specification
The minimum resistance of the dynamic braking resistors must be as specified in the manufacturers product manuals.
The inverter must be ordered with a braking module installed to use dynamic braking resistors.
Brake resistor assemblies must be rated to absorb both peak braking power during deceleration and the average power over the complete cycle.
Peak braking power = (0.0055J x (n12- n22)) / tb (Watts)
Average braking power Pav = (Ppk x tb) / tc
J - Total inertia (Kgm2)
n1 - inertia speed (rpm)
n2- final speed (rpm)
tb - Braking time (s)
tc - cycle time (s)
These resistors should be mounted on a heatsink (back panel) and covered to prevent injury from burning.
The dynamic braking circuit is intended for use with short term stopping or braking.
Product Dimensions
| Dimensions | ||||
| Brake Resistor | L mm (in) | W mm (in) | H mm (in) | Weight (Kg) |
| CZ467714 | 165 (6.5) | 22 (0.87) | 41 (1.61) | |
| CZ467715 | 100 (3.94) | 22 (0.87) | 41 (1.61) | |
| CZ467716 | ||||
| CZ467717 | 165 (6.5) | 30 (1.18) | 60 (2.36) | |
| CZ463068 | 165 (6.5) | 30 (1.18) | 60 (2.36) | |
| CZ388296 | 335 (13.18) | 30 (1.18) | 60 (2.36) | |
| CZ389853 | 165 (6.5) | 22 (0.87) | 41 (1.61) | |