Programming the Control
Signal Terminals
01/02 AWB8230-1413GB
94
Note that, when the signalling relay output is configured as a
break contact (default setting), there is a delay from the time the
supply voltage is switched on until the AL output is closed, and
that a fault message for the AL output therefore appears for a
short time after the supply is switched on.
Relay outputs K23-K24 and K33-K34
The same functions can be assigned to the two relay outputs as to
the signalling relay.
The terminal functions for programmable digital relay outputs
K23-K24 and K33-K34 are configured under PNU C021 and C022
respectively, i.e. PNU C021 defines the function of relay output
K23-K24, PNU C022 the function of relay output K33-K34.
Table 19:
Relay outputs K23-K24 and K33-K34
For a detailed description of the output functions, see the pages
listed in table 20.
Table 20:
Functions of the relay outputs
Programmable relay outputs K23-K24 and K33-K34 are, by
default, configured as make (NO) contacts.
If required, you can also configure the relay outputs as break (NC)
contacts. To do this, enter 01 under PNU C031 and C032
(corresponding to relay outputs K23-K24 and K33-K34).
Table 21:
Configuring relay outputs as make contacts
Frequency arrival signal (FA1/FA2/FA3)
The digital output configured as FA1 is activated as soon as the
setpoint frequency is reached (
a
fig. 87).
The digital output configured as FA2 is active while the
frequencies defined under PNU C042 and C043 are exceeded
(
a
fig. 89).
The digital output configured as FA3 is activated when the
frequency defined under PNU C042 is reached during acceleration.
As soon as this frequency is left, FA3 is deactivated again. During
deceleration, FA3 responds in the same way at the frequency set
under PNU C043 (
a
fig. 90).
To achieve a certain hysteresis, signals FA1 to FA3 are each
activated with
f
1
before the switching threshold is reached and
deactivated again with
f
2
on leaving the switching threshold.
f
1
and
f
2
are:
•
f
1
: 1 % of the end frequency (PNU A004, A204)
•
f
2: 2 % of the end frequency (PNU A004, A204)
PNU
Ter-
minal
Adjustable in
RUN mode
Value
WE
Normal
Exten-
ded
C021
K23-
K24
–
j
a
table 2
01
C022
K33-
K34
00
Value
Function
Description
a
page
00
RUN
Operation
96
01
FA1
Frequency setpoint reached
94
02
FA2
Frequency exceeded
94
03
OL
Overload signal
97
04
OD
PID control deviation
exceeded
98
05
AL
Fault
99
06
FA3
Frequency (within range)
reached
94
08
IP
Mains failure, immediate stop
99
09
UV
Undervoltage signal
99
11
RNT
Running time exceeded
100
12
ONT
Mains On time exceeded
100
13
THM
Motor thermal overload
101
PNU
Ter-
minal
Value
Adjustable in
RUN mode
Function
WE
Nor-
mal
Exten-
ded
C031
K23-
K24
00 or
01
–
j
00: Make
contact
01: Break
contact
00
C032
K33-
K34
Figure 87:
Function chart for FA1 (frequency reached)
f
o
:
Output frequency
f
1
:
1 % of the end frequency (PNU A004, A204)
f
2
:
2 % of the end frequency (PNU A004, A204)
F001: Setpoint
FA1
PNU F001
f
O
f
1
f
2
t
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