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Chapter 7 Optional Accessories CFP2000
The optional accessories listed in this chapter are available upon request. Installing additional
accessories to your drive would substantially improve the drive's performance. Please select an
applicable accessory according to your need or contact the local distributor for suggestion.
7-1 Brake Resistors and Brake Units Used in AC Motor Drives
Applicable
Motor
Brake
Braking
HP
kW
Torque
[kg-m]
VFDB*
1
0.75
0.5
2
1.5
0.5
3
2.2
1.0
5
3.7
1.5
5
4.0
2.5
7.5
5.5
2.7
10
7.5
3.7
15
11
5.1
20
15
7.4
25
18
10.2
30
22
12.2
40
30
14.9
50
37
20.3
60
45
25
4045*1
75
55
30.5
4045*1
100
75
37.2
4030*2
125
90
50.8
4045*2
*
1
Calculation for 125% brake torque: (kW)*125%*0.8; where 0.8 is motor efficiency.
Because of the limited resistor power, the longest operation time for 10%ED is 10 seconds (ON: 10 sec. / OFF: 90 sec.).
*
2
Refer to Chapter 7 "Brake Module and Brake Resistors" in application manual for "Operation Duration & ED" vs. "Braking
Current".
*
3
For heat dissipation, a resistor of 400 W or lower should be fixed to the frame and maintain the surface temperature below
250°C; a resistor of 1000 W and above should maintain the surface temperature below 350°C.
*
4
The calculation of the braking resistor is based on a four-pole motor (1800 rpm). Refer to VFDB series Braking Module
Instruction for more details on the braking resistor.
NOTE
1.
Specification and Appearances of Brake Resistors
1-1 Wire wound resistors: For 1000W and above, refer to the following appearance of wire wound resistor
(Figure 7-1) and its model and specification comparison table (Table 7-2) for details.
125%Braking Torque 10%ED*
Braking Resistor Series for Each
Unit
Brake Unit*
P/N
Q'ty
4
-
BR080W750
1
-
BR080W750
1
-
BR200W360
1
-
BR300W250
1
-
BR400W150
1
-
BR1K0W075
1
-
BR1K0W075
1
-
BR1K0W075
1
-
BR1K5W043
1
-
BR1K0W016
2
-
BR1K0W016
2
-
BR1K5W013
2
-
BR1K0W016
4
BR1K2W015
4
BR1K5W013
4
BR1K0W5P1
4
BR1K2W015
4
H
L
K
1
Resistor Value
3
Spec. for Each
AC Motor
Usage
Drive
-
80W750Ω
-
80W750Ω
-
200W360Ω
-
300W250Ω
-
400W150Ω
-
1000W75Ω
-
1000W75Ω
-
1000W75Ω
-
1500W43Ω
2 series
2000W32Ω
2 series
2000W32Ω
2 series
3000W26Ω
2 parallel,
4000W16Ω
2 series
2 parallel,
4800W15Ω
2 series
2 parallel,
6000W13Ω
2 series
4 series
8000W10.2Ω
2 parallel,
9600W7.5Ω
2 series
E
A
B
7-2
Max. Brake Torque*
Max.
Total
Min.
Total
Braking
Resistor
Braking
Current [A]
Value [Ω]
Current
[A]
1
190.0
1
190.0
2.1
126.7
3
108.6
5.1
84.4
10.2
54.3
14
10.2
54.3
14
10.2
47.5
16
17.6
42.2
18
24
26.2
29
24
23.0
33
29
23.0
33
47.5
14.1
54
50
12.7
60
59
12.7
60
76
9.5
80
100
6.3
120
Figure 7-1
2
Peak
Power
[kW]
4
3.0
4
3.0
6
4.6
7
5.3
9
6.8
10.6
10.6
12.2
13.7
22.0
25.1
25.1
41.0
45.6
45.6
60.8
91.2
Table 7-1
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