Internal Dynamic Braking Circuit; External Brake Resistor - Parker 650 Serie Manual De Producto

9-7
Technical Specifications

Internal Dynamic Braking Circuit

Motor Power
(kW/Hp)
0.37/0.5
0.55/0.75
0.75/1.0
1.1/1.5
1.5/2.0
2.2/3.0
2.2/3.0
2.2/3.0
3.0/4
4.0/5
3.0/4
4.0/5
5.5/7.5
7.5/10

External Brake Resistor

Recommended Brake Resistors
The following brake resistors are avialable from Parker :
Brake Resistor Value :
Alternative Brake Resistor Selection
Peak braking power P
pk
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.
% of Rated
650 Series AC Drive
The dynamic braking circuit is intended for with short term stopping or braking.
DC link brake voltage : 750V
Brake Switch
Peak Current Continuous Current
(A)
Frame 2 : 3 Phase (IT/TN), 400V, 100% duty
1.5
1.5
1.5
1.5
3.75
3.75
Frame 3 : 1 Phase (IT/TN), 230V, 100% duty
7.0
Frame 3 : 3 Phase (IT/TN), 230V, 100% duty
7.0
10.8
14.0
Frame 3 : 3 Phase (IT/TN), 400V, 30% duty
7.5
7.5
13.5
13.5
All 650 units are supplied without braking resistors. The dynamic brake switch terminals
(where fitted) allow easy connection to an external resistor. These resistors should be
mounted on a heatsink (back panel) and covered to prevent injury from burning.
Frame 2 : 200, 100W - CZ467714; 500, 60W - CZ467715
Frame 3 : 28, 500W (2 x 56 in parallel) - CZ467716; 36, 500W - CZ388396;
56, 500W - CZ467716; 100, 200W - CZ467717
Brake resistor assemblies must be rated to absorb both peak braking power during
deceleration and the average power over the repeated cycles.
 J  
2
0 0055 . ( n n

1 2
t
b
P
pk

x t
av
b
t
c
Resistor Derating Graph
120
100
80
60
Power
40
20
0
0 25
Brake Switch
(A)
1.5
1.5
1.5
1.5
3.75
3.75
7.0
7.0
10.8
14.0
2.3
2.3
4.0
4.0
2
)
( ) W
50 75 100 125 150
Ambient Temp (C)
Peak Brake Minimum Brake
Dissipation Resistor Value
(kW/Hp)
1.1/1.5
1.1/1.5
1.1/1.5
1.1/1.5
2.8/3.75
2.8/3.75
2.72
2.72
4.23
5.44
5.6/7.5
5.6/7.5
10/13.4
10/13.4
2
J- total inertia (kgm )
n - initial speed (rpm)
1
n - final speed (rpm)
2
t - braking time (s)
b
t - cycle time (s)
c
chassis mounted
free air
175 200
()
500
500
500
500
200
200
56
56
36
28
100
100
56
56