Wiring Example Braking Resistor; Note To The Function - KEB combivert B6 Installation Manual

3.3.5

Wiring example braking resistor

L1
L2
L3
F
1
K1
2
L1 L2 L3
PE
*) Temperature input T1/T2 can also be used instead of terminals I1/COM. Temperature
input T1/T2 is activated as described in annex A.5.
F Main fuses
K1 Line contactor with auxiliary contacts
G KEB COMBIVERT B6
3.3.6

Note to the function

In the example above the locking of the line contactor K1 is interrupted in case of overhe-
ating of the braking resistor. The line contactor drops and switches off the mains voltage.
The auxiliary contacts 13/14 open the error linkage circuit at terminals I1/COM (T1/T2) and
release an error. The modulation is switched off. Thus the drive in generatoric operation
does not regenerate further energy into the DC link circuit.
Depending on the case of application (e.g. no generatoric operation) simple
circuits can be used. See chapter 7 for instructions of the download. Input I1
must be programmed and inverted in the application mode to "external error".
GB - 14
Terminal strip X1B
Tightening torque 0.6 Nm (5 lb inch)
Connection cross-section 1.5...4 mm² (AWG 16-11)
+24VDC
3 5 11
4 6
12
RB
K1
++
PB
G
S2
S1
OH1
OH2
13
K1
14
I1 COM
(T1) (T2)
*)
S1 Push-bottom switch for switch on
S2 Emergency-off switch
RB Braking resistor with temperature
monitoring
++ – – PB U V W
++ – – PB U V W
T1 T2
T1 T2