Programming the control
signal terminals
01/02 AWB8230-1415GB
78
Reset (RST)
A fault message can be acknowledged by activating and subse-
quently deactivating (i.e. resetting) the digital input configured as
RST.
X Program one of the digital inputs 1 to 8 as RST by entering the
value 18 under the corresponding PNU (C001 to C008).
By default, RS is assigned to digital input 1.
Under PNU C103, you can select how the frequency inverter
responds after the reset signal drops out. You can specify whether
the frequency inverter synchronizes to the frequency set under
PNU b007 or starts at 0 Hz.
Figure 68: Digital input 4 configured as RST (reset)
RST
P244
Figure 69: Function chart for RST (reset)
K14: Signalling relay contact K14
RST
f 12 ms
~ 30 ms
K14
PNU Name Adjustable in RUN mode Value Function WE
Normal Extended
b003 Waiting time
until restart
– j 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
b007 Synchroniza-
tion frequency
– j 0 to 400 Hz Frequency at which a restart is initiated. 0.0
C102 Reset signal
j j 00 Reset signal issued on a rising edge 00
01 Reset signal issued on a falling edge
02 Reset signal issued on a rising edge, only if fault signal
present
C103 Behaviour on
reset
– j 00 0 Hz start 00
01 Synchronization to the motor speed
Warning!
If a reset is carried out after a fault, the motor will start
immediately if a start signal is applied simultaneously. To
avoid the risk of serious or fatal injury to personnel, you
must ensure that the start signal is not present before
acknowledging an error message with a reset .
h
When a fault has occurred, the OFF key on the keypad
acts as a RESET key, and can be used instead of the RST
input to reset the fault.
h
If the RST input is active for more than four seconds, it can
cause a false trip.
h
The RST input is always a make (NO) contact and cannot
be programmed as a break (NC) contact.
h
Alternatively, you can acknowledge a fault message by
briefly switching the supply voltage off and on again.
h
If a reset is initiated during operation, the motor coasts to
a stop.
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