H2B USER'S MANUAL - 550145G Page 11/60
2.8 GENERAL CONTACTORS AND SAFETY SWITCH FOR REGENERATIVE
MODEL
- The connection of eventual interruption systems of the battery must be executed scrupu-
lously respecting one of the following wirings.
- With safety switch
- With switch and general contactor
- These circuital solutions are necessary to avoid the chopper fail when the connection to
the battery is opened during the phase of regenerative braking.
The chopper intrinsic protection is active when the voltage on the pin D1 exceeds by
30% the battery normal voltage or when the key is excluded before the opening of the
battery connection.
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