Technical Specifications
9-6
650 Series AC Drive
Internal Dynamic Braking Circuit
The dynamic braking circuit is intended for with short term stopping or braking.
DC link brake voltage : 750V
Motor Power
(kW/Hp)
Brake Switch
Peak Current
(A)
Brake Switch
Continuous Current
(A)
Peak Brake
Dissipation
(kW/Hp)
Minimum Brake
Resistor Value
(
Ω
)
Frame 2 : 3 Phase (IT/TN), 400V, 100% duty
0.37/0.5 1.5
1.5
1.1/1.5
500
0.55/0.75 1.5
1.5
1.1/1.5
500
0.75/1.0 1.5
1.5
1.1/1.5
500
1.1/1.5 1.5
1.5
1.1/1.5 500
1.5/2.0 3.75
3.75 2.8/3.75 200
2.2/3.0 3.75
3.75 2.8/3.75 200
Frame 3 : 1 Phase (IT/TN), 230V, 100% duty
2.2/3.0 7.0
7.0
2.72
56
Frame 3 : 3 Phase (IT/TN), 230V, 100% duty
2.2/3.0 7.0
7.0
2.72
56
3.0/4 10.8 10.8
4.23
36
4.0/5 14.0 14.0
5.44
28
Frame 3 : 3 Phase (IT/TN), 400V, 30% duty
3.0/4 7.5
2.3 5.6/7.5 100
4.0/5 7.5
2.3 5.6/7.5 100
5.5/7.5 13.5
4.0
10/13.4
56
7.5/10 13.5
4.0
10/13.4
56
External Brake Resistor
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.
Recommended Brake Resistors
The following brake resistors are avialable from Parker SSD Drives:
Brake Resistor Value :
Frame 2 :
200
Ω
, 100W - CZ467714; 500
Ω
, 60W - CZ467715
Frame
3
:
28
Ω
, 500W (2 x 56
Ω
in parallel) - CZ467716; 36
Ω
, 500W - CZ388396;
56
Ω
, 500W - CZ467716; 100
Ω
, 200W - CZ467717
Alternative Brake Resistor Selection
Brake resistor assemblies must be rated to absorb both peak braking power during
deceleration and the average power over the repeated cycles.
Peak braking power P
0 0055
n
n
t
W
1
2
2
2
b
=
×
−
.
(
)
( )
pk
×
J
Average braking power P
P
t
av
pk
c
=
x t
b
J- total inertia (kgm
2
)
n
1
- initial speed (rpm)
n
2
- final speed (rpm)
t
b
- braking time (s)
t
c
- cycle time (s)
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.
Resistor Derating Graph
0
20
40
60
80
100
120
0
25
50
75
100
125
150
175
200
Ambient Temp (C)
% of Rated
Power
chassis mounted
free air
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+46 (0)18-65 70 00
+46 (0)18-10 74 78 [email protected] www.regal.se