Sourcetronic ST600 - Page 379

Frequency Inverter ST600 High-Performance Multifunction Series VFD Optional peripheral
accessories
-372-
Table D-8 Brake unit signals for SP model VFDs
Product model
Braking unit
Resistance
applicable
for 100%
brake
torque (Ω)
Dissipated power of braking
resistor (kW)
Min.
allowable
brake
resistance
(Ω)
10%brake
usage
50% brake
usage
80% brake
usage
ST600SP-004G3
Built-in braking unit
122
0.6
3
4.8
80
ST600SP-5R5G3
89
0.75
4.1
6.6
60
ST600SP-7R5G3
65
1.1
5.6
9
47
ST600SP-011G3
44
1.7
8.3
13.2
31
ST600SP-015G3
32
2
11
18
23
ST600SP-018G3
27
3
14
22
19
ST600SP-022G3
22
3
17
26
17
ST600SP-030G3
17
5
23
36
17
ST600SP-037G3
13
6
28
44
11.7
ST600SP-045G3
10
7
34
54
6.4
ST600SP-055G3
8
8
41
66
ST600SP-075G3
6.5
11
56
90
ST600SP-090G3
5.4
14
68
108
4.4
ST600SP-110G3
4.5
17
83
132
Note:
1. Select brake resistors according to the resistance and power data provided by our company.
2. The brake resistor may increase the brake torque of the VFD. The preceding table describes the
resistance and power for 100% brake torque, 10% brake usage, 50% brake usage, and 80% brake
usage. You can select the brake system based on the actual operation conditions.
3. When using an external brake unit on a standard model VFD, set the brake voltage class of the
brake unit properly by referring to the manual of the dynamic brake unit. If the voltage class is set
incorrectly, the VFD may not run properly.
Do not use brake resistors whose resistance is lower than the specified minimum resistance.
VFDs do not provide protection against overcurrent caused by resistors with low resistance.
In scenarios where brake is frequently implemented, that is, the brake usage is greater than