Parker 650G Product Manual page 47

North American Standard Dynamic Braking Resistor Kits
The Dynamic Braking Resistor kits were designed for stopping a motor at full load current from
base speed with two times motor inertia, three times in rapid succession in accordance with
NEMA ICS 3-302.62 Dynamic Braking Stop option.
Brake Resistor Selection
Note: Parker SSD Drives can supply suitable brake 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 P
Average braking power P
Obtain information on the peak power rating and the average power rating of the resistors from
the resistor manufacturer. If this information is not available, a large safety margin must be
incorporated to ensure that the resistors are not overloaded.
By connecting these resistors in series and in parallel the braking capacity can be selected for the
application.
IMPORTANT: The minimum resistance of the combination and maximum dc link voltage must be as
specified in Chapter 9: "Technical Specifications" - Internal Dynamic Brake Switch.
650G AC Drive
460 VAC Dynamic Braking Resistor
Kit with Cover
HEAVY DUTY
Hp Ohms kW
7.5 100 0.2
10 54 0.7
15 54 0.84
20 30 1.26
25 30 1.17
30 30 1.56
40 26 2.03
50 18.4 2.36
60 12 2.0
75 9 3.39
100 7 3.39
125 5.5 3.39
150 5.5 3.39
.
0 0055

pk

av
120
100
80
% of Rated Power 60
40
20
0
0
Figure Chapter 3-13 Brake Resistor Derating Graph
www.comoso.com
Installing the Drive
460 VAC Dynamic Braking Resistor
Kit with Cover
NORMAL DUTY
Catalog No. Ohms
CZ353179 100
CZ353181 100
CZ353181 54
CZ353182 54
CZ353182 30
CZ353182 30
CZ353183 30
CZ353185 26
CZ353186 18.4
CZ353188 12
CZ353189 9
CZ353190 7
CZ353190 5.5
 J  
2 2
( )
n n
1 2
( ) W
t
b
J
n
1
P
pk
x t n
b 2
t
c
t
b
t
c
25 50 75 100
Ambient Temp (C)
3-26
kW Catalog No.
0.2 CZ353179
0.7 CZ353179
0.84 CZ353181
1.26 CZ353181
1.17 CZ353182
1.56 CZ353182
2.03 CZ353182
2.36 CZ353183
2.92 CZ353185
3.39 CZ353186
3.39 CZ353188
3.39 CZ353189
3.39 CZ353190
2
- total inertia (kgm )
- initial speed (rpm)
- final speed (rpm)
- braking time (s)
- cycle time (s)
chassis mounted
free air
125 150 175 200