01/02 AWB8230-1413GB
Start/stop
91
Three-wire control (STA – STP – F/R)
With digital inputs configured as STA, STP and F/R, you can
operate the DF6 frequency inverter with three switches:
• STA: Start
• STP: Stop
• F/R: Reverse direction
X
Program three of digital inputs 1 to 5 as STA, STP and F/R by
entering the following values under the corresponding PNU
(C001 to C005):
– STA: 20
– STP: 21
– F/R: 22
The DF6 frequency inverter accelerates to the setpoint frequency
entered under PNU A020.
X
Under PNU A001, enter the value 02 (setpoint definition
through PNU A020).
X
Under PNU A002, enter the value 01 (start signal through
digital inputs).
X
Under PNU A020, enter the setpoint frequency.
If you want to start the inverter through the STA input, the STP
input must be activated (inverse function, fail-safe). The signal
must be applied for only a short time (pulse). If the STP input is
deactivated, the motor is stopped. If the F/R input (pulse) is
activated, the motor direction is reversed.
Figure 84:
Digital input 1 configured as STA (pulse start), digital input
2 as STP (Pulse stop) and digital input 3 as F/R (reverse
direction).
F/R
STA
STP
P24
1
2
3
Figure 85:
Function chart for STA (pulse start) STP (pulse stop) and
F/R (direction reversal)
F/R
STP
FWD
REV
STA
f
o
PNU
Name
Adjustable in RUN mode
Value
Function
WE
Normal
Extended
A001
Defined
frequency
setpoint
–
–
00
Definition with the potentiometer on the keypad
01
01
Definition through analog input O (0 to 10 V), OI
(4 to 20 mA) or O2 (–10 V to +10 V
H
)
02
Definition through PNU F001 and/or PNU A020
03
Definition through the RS 485 serial interface, terminals RP,
2
x
SN and SP
04
Definition through optional card at slot 1
05
Definition through optional card at slot 2
A002
Start signal
–
–
01
The motor start signal is issued through digital inputs, for
example through the FW input or a digital input configured
as REV.
01
02
The motor start signal is issued by the ON key on the keypad.
03
The motor start signal is issued through the RS 485
interface.
04
The motor start signal is issued through the optional module
in slot 2.
05
The motor start signal is issued through the optional module
in slot 2.
A020
A220
Frequency
setpoint value
j
j
0 to PNU A004
You can enter a frequency setpoint value. Set PNU A001 to
02 for this purpose.
0.0
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