Setting parameters
10/05 AWB8230-1541GB
102
Actual value and status signals
This section describes how to assign various actual values and
status signals to the control signal terminals.
Control signal terminal overview (output)
The table below provides an overview of the output control signal
terminals and a brief description of the functions which you can
assign to the analog and digital outputs. The following pages
contain a detailed description of each function.
Table 30: Brief description of the functions
Name Value
1)
Name Description
Analog outputs
AM – Analog output,
measured value
indication selection
Through this output, the frequency can be issued through a connected analog or digital
measurement device. Alternatively, the motor current can be output (PNU C028).
0 to +10 V H
Load carrying capacity: 1 mA
L–0V
Reference potential for the following control signal terminals
• Analog inputs O and OI
• Analog output AM
• Reference voltage +10 V (H)
• Control voltage +24 V:
Digital outputs 11 and 12
Parameterizing PNU C021 and C022
RUN 00 RUN signal
The RUN signal is output during operation of the motor. Connection of a signal
relay to digital output 11 or
12:
Transistor output
(open collector)
(maximum 27 VH, 50 mA)
FA1 01 Reference frequency
reached
f
s
= reference frequency
FA2 02 Frequency signal If a digital output is configured as FA1, a signal is issued as long as
the reference value is reached. If a digital signal is configured as FA2,
a signal is output as long as the frequencies defined under PNU C042
(during acceleration ramp) and PNU C043 (during deceleration ramp)
are exceeded.
OL 03 Overload warning
The OL (overload) signal is output when the overload alarm threshold
(adjustable under PNU C041) is exceeded.
OD 04 PID control deviation The OD (Output Deviation) signal is issued when the PID control
deviation set with PNU C044 is exceeded.
AL 05 Fault/alarm signal The AL (alarm) signal is issued when a fault occurs.
Dc 06 Warning: Analog
reference value signal
interrupted
Dc (Disconnect Detect) monitors the analog inputs in RUN mode and
signals any failure or drop-off below the reference value signal.
• Input O (0 to 10 V) below value in PNU b082 or
• current signal at input OI less than 4 mA.
FBV 07 Warning:: Actual value
signal to PID controller
interrupted
FBV (Feedback Value Check) monitors the PV feedback signal from
the PID controller in RUN mode.
Reference/actual value differential of PID control exceeds the
tolerance range in PNU C052/C053.
NDc 08 Fault/Warning: Faulty
communication through
serial interface.
NDc (Network Detection Signal) monitors den the watchdog timer
during communication through the RS 485 serial interface (Modbus).
Fault/warning dependent on PNU C077 – communication watchdog
timer has expired: communications are faulty.
1) To activate the function, enter this value in the corresponding parameter.
2) This output can be used as both a signal output and a normal digital output.
24 V
50 mA
12CM2
FA1
f
s
FA2
f
2
f
1
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