Lenze i550 - Page 157

Long connecng cables up to max. 5 m
The brake resistor cable must be shielded. The maximum length is 5 m.
For the temperature monitoring cable, twisng is sucient.
R
B
RB1 RB2
< 5 m
T1 T2
+
"
"
①
②
Fig. 4: Connecon plan - brake resistor with a cable length of up to 5 m
① Wiring to the "brake resistor" connecon on the inverter or another component with brake chopper.
② Oponal: Wiring to a control contact, e. g. a digital input that is set to monitor the thermal contact. If the thermal
contact responds, the voltage supply of the inverter must be disconnected (e. g. switch o the control of the mains
contactor).
Electrical installaon
Brake resistor connecon
157