Connection Of A Braking Resistor With Fire Protection Monitoring; Figure 15: Connection Of A Braking Resistor - KEB COMBIVERT H6 Instructions For Use Manual

CONNECTION OF THE POWER UNIT

4.2.5 Connection of a braking resistor with fire protection monitoring

The correct size of the braking resistor RB is the responsibility of the customer. The
temperature sensor must be monitored and the load switched off in case of overheating.
Legend
F Mains fuses
K1 Line contactor with auxiliary contacts
G1 Power supply unit COMBIVERT H6
S1 Push-bottom switch for switch on
S2 Emergency-off switch
RB Braking resistor
(with securely isolated temperature switch)
Figure 15: Connection of a braking resistor
In the example above the locking of the line contactor K1 is interrupted in case of over-
heating of the braking resistor. The line contactor drops out and switches off the mains
voltage. The auxiliary contacts 13/14 of K1 open the error linkage circuit at terminals
DI4/24V and release an error. The modulation is switched off. Thus the drive in regener-
ative operation does not regenerate further energy into the DC link circuit.
NOTICE
All manuals and user guides at all-guides.com
L1
L2
L3
K1
External error
The input DI4 must be programmed to "external error" and inverted.
Depending on the case of application (e.g. no regenerative operation)
simple circuits can be used.
+24VDC
F
1 3 5
2 4 6
DR RB
K1
L1 L2 L3 +PA PB
G1
S2
11
S1
12
OH1
OH2
13
K1
14
DI 4 24V
45