Moeller DF5 series - Controller Inhibit and Coasting of the Motor FRS (Free Run Stop)

Programming the control
signal terminals
09/01 AWB8230-1412GB
60
Controller inhibit and coasting of the motor FRS
(free run stop)
If you activate the digital input configured as FRS, the motor is
switched off and coasts to a stop (for example if an Emergency-
Stop is made). If you deactivate the FRS input, then, depending on
the converter’s configuration, frequency output is either synchro-
nized to the current speed of the coasting motor or restarts at
0Hz.
X Set under PNU b88, if the motor is to restart with 0 Hz after
deactivation of the FRS input, or if a synchrinization to the
current motor speed after a waiting time (PNU b03) is to occur.
X Program one of the digital inputs 1 to 5 as FRS, by inputting the
value 11 under the respective PNU (C01 to C05).
Figure 53: Configuration of digital input 3 as “controller inhibit” FRS
(free run stop) and 4 as FWD (start/stop clockwise
rotation)
FWD
FRS
P2434
Figure 54: Function chart “control inhibit and free run stop” FRS
n
M
:motor speed
t
w
: delay time (setting under PNU b03)
a Motor coasts to a stop
b Synchronization to the current motor speed
c Restart from 0 Hz
FWD/REV
FRS
n
M
t
w
a
c
b
PNU Name Adjustable in
RUN mode
Value Function WE
b03 Delay time
until restart
– 0.3 to 100 s Here, set a time which is to expire before an automatic restart is initiated
after a fault signal. This time can also be used in conjunction with the FRS
function. During the delay, the following message appears on the LED
display:
1.0
b88 Motor restart
after removal
of the FRS
signal
– 00 0 Hz restart after deactivation of the FRS input 00
01 Synchronization of the motor to the current motor speed after the delay
time entered under PNU b03.