10/05 AWB8230-1541GB
Motor control
81
Control signal terminal modus (F-TM) and keypad (OPE)
If you apply value 51 (F-TM) to one of digital inputs 1 to 5 under
PNU C001 to C005, the control signal terminals are used as source
for the start/stop signal and/or for the reference frequency input.
The values of PNU A001 and A002 are then ignored.
Example:
In machines, a higher-level controller usually issues the start signal
(clockwise rotating field FWD) through control signal terminal 1
and the reference frequency through analog input O. For
maintenance and setup tasks, these inputs should be made
through a locally mounted optional keypad DEX-KEY-6. Local
control mode is activated with a keyswitch.
Set the parameters ass follows for this purpose:
For local operation, the F-TM signal from control signal terminal
3 is then disabled through the keyswitch (N/C contact). On the
keypad, the START and potentiometer LEDs light up. The drive can
now be controlled with the keypad’s Start and Stop keys and its
speed is set with the keypad’s potentiometer.
Table 26: “Control signal terminals preferred” mode.
PNU A001 = 00 The keypad’s potentiometer as reference
frequency source.
PNU A002 = 02 The keypad’s Start key as start signal source.
PNU C003 = 51 Digital input 3. Mode “Control signal terminals
preferred” is active. The analog reference
frequency is taken from control signal terminal O
and the start/stop signal from control signal
terminal 1 (FWD).
h
When the signal state (F-TM) changes in the RUN mode,
the motor is automatically stopped and can be restarted
only with a new Start signal.
Value range PNU C001 to C006 State Description
51 F-TM Digital input,
Mode: Control signal terminals preferred.
ON • Frequency reference value input through control signal
terminals (A001 = 01)
• Start/Stop input through control signal terminals
(A002 = 01)
OFF Uses the settings from PNU A001 and A002.
31 OPE Keypad (operator) ON When the OPE input is activated, the start/stop signal
(PNU A002) and the reference input (PNU A001) are
provided through the keypad.
OFF Start/stop signal and reference input are provided by
PUN A001 and A002.