Lenze EMB9352−C - Manual (Page 104)

Electrical installation
Setting the switching threshold
7
l
104 EDBMB935X DE/EN/FR 13.0
7.6 Setting the switching threshold
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Danger!
ƒ S1, S2 and S3 have a mains potential!
– Wait for at least 3 minutes before changing over the switches.
Important notes
The switching threshold of the braking unit is the voltage value in the DC bus,
at which the brake resistor is connected.
ƒ The switching threshold depends on the mains voltage.
– With the switches S1 and S2 you can adapt the switching threshold to
the corresponding mains voltage of the controller.
ƒ For all braking units connected in parallel in the DC−bus connection the
same switching threshold has to be set.
Setting
1. Switch the controller to a deenergised state and wait for 3 minutes until
the capacitors of the voltage DC−bus are discharged.
2. Remove terminal cover of the control terminals (at the bottom) from the
braking unit.
3. Set switches S1 and S2 according to the following table:
Mains voltage U Switching threshold
U
ch
Switch position
[V
eff
] [V] S1 S2
230 375 OFF OFF
400 ... 460 725 ON OFF
480 765 ON ON
Bold print: Lenze setting
4. Press terminal cover onto the braking unit again until it snaps into place.