Lenze 520 Series - Controller Enable (RFR); Quick Stop QSP

48
4Q - DC Chopper 520 series
4.2.6 CONTROLLER ENABLE (RFR)
16 17 PE If switch RFR is closed, the controller is
enabled. If switch RFR is open, the outputs
—— of speed and current controller and the
RFR\~ - driver control signals are set to 0V.
Use bw current contacts
20V11 mA
4.2.7 QUICK STOP QSP
If switch QSP is closed, the drive is
decelerated to standstill at rated current. The
chopper reference inputs are reset. If the
— resistors R39 (522 E) or R44 (524 E) are
removed, the integral component of the
QSP speed controller is not inhibited when cbosing
switch QSP.
Operating the chopper with zero speed after
the braking phase using QSP is only
possible, if the speed references are set to
0V and switch QSP is cbosed.
The kinetic energy of the drive is fed into the
DC bus. The energy must be dissipated via a
brake resistor or, in a DC bus network, fed
into a controller which is operating in the
motor mode.
Use 10w current contacts
20V/1 mA
Lenze