Power Accessories
for
AC and DC Drives
DYNAMIC BRAKING RESISTORS
The DC bus voltage level of a drive increases while
the motor is re-generating, i.e. ramping to a stop.
Dynamic braking resistors provide a means of rapidly
stopping a rotating motor and load while maintaining
an acceptable bus voltage level. The mechanical energy
stored in the spinning mass is converted into electrical
energy and quickly dissipated as heat through a resistor.
Control Techniques offers resistor kits available for both
AC and DC drives.
Dynamic Braking for DC Drives
DC drives provide an exponential stopping profile when
a dynamic brake resistor is applied across the motor’s
armature circuit (when the motor acts as a DC
generator). This type of braking can occur only when the
drive is configured for coast stop and power has been
removed from the motor (stop commanded). To apply a
dynamic brake resistor to a DC drive, a motor contactor
with a DB pole is required. This motor contactor is
standard on Quantum III DC drives up through 250 hp.
OVERLOAD PROTECTION
Dynamic Braking for AC Drives
AC drives provide a constant torque stopping profile
when a dynamic brake resistor is applied across the DC
bus circuit. Dynamic braking can be employed under a
stop command or anytime a decrease in motor speed
is commanded, provided the AC drive is enabled and
programmed for ramp stop (fast ramp mode).
Regen to line is also a preferred way to handle dynamic
braking and is an option on Focus 3, Mentor II and
Quantum III DC drives.
The brake is active anytime the system is enabled.
Therefore, the braking circuit must be protected with an
overload device.
The Commander SK, GP20 and Unidrive SP drives
are equipped standard with built-in dynamic braking
transistors. Simply select the proper braking resistor
needed for the size of drive and duty cycle.
Control Techniques offers two types of dynamic braking
kits for AC Drives. The E-stop duty kits provide a means
of quickly stopping a motor / load as well as providing
the ability to dissipate energy created by either a change
in motor speed or a line transient.
The cyclic duty kits are intended for more severe
applications that need the capability to dissipate
regenerated energy on a more continuous or repetitive
basis such as indexers, feeders and dynamometers.
Power
Accessories
383
DB Resistors for AC Drives
E-STOP DUTY
Panel mounted DB resistors are designed for non-cyclic
use where energy dissipation from an active drive is
required. Resistors are supplied with mounting hardware
unless otherwise noted.
These kits are designed to meet or exceed NEMA
standard 7-15-1970, which states “DB resistors will not
exceed their rated temperature rise when the drive is
braked from maximum speed to standstill three times
in rapid succession with a load inertia equal to or less
than the motor inertia”. They are designed to provide
150% braking torque (peak at max speed for DC drives,
constant for AC drives) for 1800 rpm base speed motors.
Note: The Commander GP20 and Unidrive SP Size 1
and 2 can be equipped with a zero-space, heatsink
mountable DB resistors.
INTERNAL DYNAMIC BRAKING RESISTORS
Commander SK (size 2), GP20 and Unidrive SP
Frame Size DC Resistance Power Rating Order Code
1
75 W
50W SM-Heatsink-DBR1
CYCLIC DUTY
NEMA 1 DB resistor kits include a wall mount enclosure
with built-in junction box, a terminal strip,
a normally closed thermal contact (klixon switch) and
resistors pre-wired with high-temperature Teflon wire.
These heavy-duty kits have been designed to provide
dynamic braking for cyclic and continuous braking
applications. There are three levels available: 10%, 25%
and 33%. These levels refer to the continuous allowable
braking level (ie. 25% equals 25% of rated motor
braking torque) or the maximum allowable duty cycle
rates with maximum specified “on-time” limitations
(refer to illustration below).
Duty Cycle
E-STOP DUTY CASE DB RESISTORS FOR COMMANDER SK, GP20 & UNIDRIVE SP SERIES AC DRIVES
Control Techniques E-Stop duty case dynamic braking
resistors provide the energy dissipation required for a
drive system while keeping the installation as compact
as possible. See drive heatsink options in the drive
section of the catalog.
Accessories
Power
2
DRIVE ORDER CODE LEGEND
y= SK for Commander SK, or CGP for Commander GP20,
or SP for Unidrive SP
z= CGP for Commander GP20, or SP for Unidrive SP
37.5 W
100W SM-Heatsink-DBR2
230VAC
Drive Order Code
SKA1200025 8200-00450 9 x 1.5 x 0.75
SKA1200037 8200-00451 6 x 3 x 1.5
SKA1200055 8200-00452 6 x 3 x 1.5
z1201 & SKA1200075 8200-00453 6 x 3 x 1.5
z1202 & SKBD200110 8200-00454 6 x 3 x 1.5
z1203 & SKBD200150 8200-00455 6 x 3 x 1.5
z1204 & SKCD200220 8200-00456 9 x 3 x 1.5
460VAC
Drive Order Code
SKB3400037 8200-00412 6 x 3 x 1.5
SKB3400055 8200-00413 7.5 x 3 x 1.5
z1401 & SKB3400075 8200-00414 7.5 x 3 x 1.5
SKB3400110 8200-00415 9 x 3 x 1.5
z1402 & SKB3400150 8200-00416 9 x 3 x 1.5
z1403 & SKC3400220 8200-00417 12 x 3 x 1.5
z1404 & SKC3400300 8200-00418 12 x 3 x 1.5
z1405 & SKD3200400
Case Resistor
Order Number
Case Resistor
Order Number
8200-00419 12 x 3 x 1.5
Dimensions (in.)
L x D x H
Dimensions (in.)
L x D x H
384
DB Resistors for AC Drives
COMMANDER SK, COMMANDER GP20, UNIDRIVE SP AC DRIVES
230VAC
Drive Order Code
SKA1200025
SKA1200037
SKA1200055
z1201 & SKA1200075
z1202 & SKBD200110 8200-00208 8200-00002 8200-00016 8200-00030
z1203 & SKBD200150 8200-00209 8200-00003 8200-00017
z1204 & SKCD200220 8200-00210 8200-00004 8200-00018 8200-00032
y2201 & SKD3200400 8200-00210 8200-00004 8200-00018 8200-00032
y2202 8200-00211 8200-00005 8200-00019
y2203 8200-00212 8200-00006
y3201 8200-00213 8200-00007 8200-00021 28 x 13 x 5 8200-00035
y3202 8200-00214 8200-00008
y4201 8200-00215 8200-00009 8200-00023 29 x 18 x 14 8200-00037
y4203 8200-00217 8200-00010 8200-00024 8200-00038
y5201 8200-00221 Consult Factory 8200-00012 29 x 18 x 14 8200-00026 29 x 18 x 14 8200-00040 29 x 18 x 21
y5202 8200-00222 Consult Factory 8200-00250 Consult Factory 8200-00251 Consult Factory 8200-00252 Consult Factory
460VAC
Drive Order Code
SKB3400037
SKB3400055
z1401 & SKB3400075
SKB3400110 8200-00152 8200-00044 8200-00061 14 x 10 x 5 8200-00078
z1402 & SKB3400150 8200-00153 8200-00045 8200-00062 14 x 13 x 5 8200-00079 14 x 13 x 5
z1403 & SKC3400220 8200-00155
z1404 & SKC3400300 8200-00155 8200-00046 8200-00063 8200-00080
z1405 & SKD3200400 8200-00156 8200-00047
z1406 & SKD3400550 8200-00156 8200-00047 8200-00064 8200-00081
y2401 & SKD3400750 8200-00157
y2402 8200-00158 8200-00049 21 x 13 x 5 8200-00066 28 x 13 x 5 8200-00083
y2403 8200-00161 8200-00051
y2404 8200-00162 8200-00052 8200-00069 8200-00086
y3401 8200-00162 8200-00052 8200-00069 8200-00086
y3402 8200-00163
y3403 8200-00163 8200-00053 8200-00070 8200-00087
y4401 8200-00165
y4403 8200-00167 8200-00056 8200-00073 29 x 18 x 21 8200-00090
y5401 8200-00170 8200-00057
y5402 8200-00170 8200-00057 8200-00074 8200-00091
y6401 8200-00205
y6402 8200-00205 8200-00260 8200-00261 8200-00262
575VAC
Drive Order Code
y3501 8200-03501
y3502 8200-03502 8200-13502 8200-23502
y3504 8200-03504
y3505 8200-03505 8200-13505 8200-23505 29 x 18 x 7 8200-33505
y3506 8200-03506 8200-13506 8200-23506
y3507 8200-03507 8200-13507 29 x 18 x 7 8200-23507 8200-33507
y4603 8200-03508 8200-13508
y4604 8200-03509
y4605 8200-03510 8200-13510 8200-23510 29 x 18 x 21 8200-33510
y4606 8200-03511 29 x 18 x 7 8200-13511 8200-23511 8200-33511
y5601 8200-03512
y5602 8200-03513 8200-13513
y6601 8200-03514 8200-13514 8200-23514 8200-33514 29 x 18 x 49
y6602 8200-03515 8200-13515 29 x 18 x 42 8200-23515 29 x 18 x 49 8200-33515 29 x 18 x 56
690VAC
Drive Order Code
y4601 8200-03601
y4602 8200-03602 8200-13602 8200-23602 8200-33602
y4603 8200-03603 21 x 13 x 5 8200-13603 8200-23603
y4604 8200-03604
y4605 8200-03605 8200-13605
y4606 8200-03606 8200-13606 8200-23606
y5601 8200-03607 28 x 13 x 5 8200-13607
y5602 8200-03608 29 x 18 x 7 8200-13608 8200-23608 29 x 18 x 49 8200-33608 29 x 18 x 56
y6601 8200-03609
y6602 8200-03610 8200-13610 8200-23610 58 x 18 x 35 8200-33610
* For larger drives and SPM modules please consult factory.
E-Stop Dimensions 10% Dimensions 25% Dimensions 33% Dimensions
8200-00218
10.25 x 2 x 2.75
E-Stop Dimensions 10% Dimensions 25% Dimensions 33% Dimensions
8200-00151
11.75 x 2 x 2.75
10.25 x 2 x 2.75
10.25 x 2 x 5.75
16.5 x 8 x 4
21 x 8 x 4
30 x 8 x 4
E-Stop Dimensions 10% Dimensions 25% Dimensions 33% Dimensions
14 x 4 x 5
14 x 13 x 5
21 x 13 x 5
29 x 18 x 14
E-Stop Dimensions 10% Dimensions 25% Dimensions 33% Dimensions
14 x 13 x 5
29 x 18 x 7
29 x 18 x 14
Duty Cycle / Order Code / Dimensions (L x D x H in inches)
8200-00001
14 x 4 x 5
21 x 10 x 5
28 x 13 x 5
Duty Cycle / Order Code / Dimensions (L x D x H in inches)
8200-00043
8200-00046
8200-00048 21 x 10 x 5 8200-00065 21 x 13 x 5 8200-00082
8200-00053
8200-00055 8200-00072 8200-00089
8200-00260
Duty Cycle / Order Code / Dimensions (L x D x H in inches)
8200-13501
8200-13504
8200-13509 8200-23509 8200-33509
8200-13512 29 x 18 x 21 8200-23512 29 x 18 x 28 8200-33512 29 x 18 x 35
Duty Cycle / Order Code / Dimensions (L x D x H in inches)
8200-13601
8200-13604 8200-23604 8200-33604
8200-13609
4 x 7 x 5
14 x 10 x 5
14 x 13 x 5
29 x 18 x 7
29 x 18 x 14
29 x 18 x 21
29 x 18 x 35
14 x 13 x 5
28 x 13 x 5
29 x 18 x 14
29 x 18 x 28
29 x 18 x 14
29 x 18 x 21
29 x 18 x 28
29 x 18 x 42
DRIVE ORDER CODE LEGEND
y= SK for Commander SK, or CGP for Commander GP20,
or SP for Unidrive SP
z= CGP for Commander GP20, or SP for Unidrive SP
8200-00015
8200-00020 8200-00034
8200-00022 29 x 18 x 7 8200-00036
8200-00060 14 x 7 x 5
8200-00063
8200-00064 8200-00081
8200-00068
8200-00070 8200-00087
8200-00074
8200-00261
8200-23501 14 x 13 x 5 8200-33501 14 x 13 x 5
8200-23504 8200-33504
8200-23508 8200-33508
8200-23513
8200-23601
8200-23605 29 x 18 x 28 8200-33605 29 x 18 x 35
8200-23607 8200-33607 29 x 18 x 49
8200-23609 29 x 18 x 56 8200-33609
14 x 7 x 5
14 x 10 x 5
21 x 10 x 5
29 x 18 x 7
21 x 10 x 5
29 x 18 x 14
29 x 18 x 28
29 x 18 x 49
28 x 13 x 5
29 x 18 x 14
29 x 18 x 35
29 x 18 x 14
29 x 18 x 21
29 x 18 x 35
8200-00029 14 x 7 x 5
8200-00031
8200-00033 21 x 10 x 5
8200-00038
8200-00077
8200-00080
8200-00085
8200-00091
8200-00262
8200-33502
8200-33506
8200-33513 29 x 18 x 42
8200-33601
8200-34603
8200-33606 29 x 18 x 42
14 x 10 x 5
14 x 13 x 5
28 x 13 x 5
29 x 18 x 14y4202 8200-00216 8200-00010 8200-00024
14 x 10 x 5
21 x 10 x 5
28 x 13 x 5
29 x 18 x 14
29 x 18 x 21y4402 8200-00165 8200-00055 8200-00072 8200-00089
29 x 18 x 28
29 x 18 x 56
28 x 13 x 5y3503 8200-03503 14 x 7 x 5 8200-13503 21 x 13 x 5 8200-23503 8200-33503
29 x 18 x 14
29 x 18 x 21
29 x 18 x 14
29 x 18 x 21
58 x 18 x 35
Power
Accessories
385
DB Resistors for DC Drives
E-stop duty dynamic braking resistors are available
to provide for the fast stopping of DC motors.
Quantum III DC drives come supplied with a DB
Resistor Pole, which is conveniently located adjacent
to the either A- on non-regen models, or A+ in
regen models.
DB resistors are shipped loose and mounted external
to the drive (by customer). NEMA 1 Enclosure is
Galvanized Steel and meets UL508A standard.
230VAC DB Resistors
HP
5 8200-00100
7.5 8200-00101 005-4302
10 8200-00102 005-4303
15 8200-00103 005-4304
20 8200-00104 005-4305
25 8200-00105 005-4306
30 8200-00106*
40 8200-00107* 005-4308
50 8200-00108* 005-4309
60 8200-00109* 005-4310
75 8200-00110* 005-4311
100 8200-00111* 14 x 10 x 5 005-4312 5 x 14 x 10
125 8200-00112* 14 x 13 x 5 n/a
Order Code
Chassis NEMA 1
Dimensions (in.)
H x W x D
10.25 x 2 x 2.75
14 x 4 x 5
Order Code
005-4301
005-4307
Dimensions (in.)
H x W x D
5 x 14 x 4
5 x 14 x 7
5 x 14 x 4
460VAC DB Resistors
Accessories
Power
The DC Dynamic braking components have been sized for occasional non-repeated use,
assuming load inertia is equal to or less than motor inertia. The Dynamic resistor will be sized
at approximately 150% of rated motor current. The DB enclosures are galvanized NEMA 1
386
HP
5-7.5 8200-00115
10 8200-00116 005-4352
15 8200-00117 005-4353
20 8200-00118 005-4354
25 8200-00119 005-4355
30 8200-00120
40 8200-00121 005-4357
50 8200-00122 005-4358
60
75 005-4360
100 8200-00125* 14 x 10 x 5 005-4361 5 x 14 x 13
125 8200-00126*
150 8200-00127* 005-4363
200 8200-00128* 005-4364
250 8200-00129* 005-4365
Order Code
8200-00124* 14 x 7 x 5
Dimensions (in.)
H x W x D
10.25 x 2 x 2.75
10.25 x 2 x 5.5
14 x 13 x 5
enclosure shipped loose and mounted external to the drive to meet UL508A standard. The DC
drive will also require a DB contactor option for dynamic braking action.
* Resistor is wall mounted, not panel mounted.
Order Code
005-4351
005-4356
005-4359
005-4362
Dimensions (in.)
H x W x D
5 x 12 x 4
5 x 14 x 7
5 x 14 x 10
5 x 21 x 10
Chassis NEMA 1
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