Function active
<Speed reduction> function activated.
Set speed reduction range
Range in relation to the setpoint, where the speed – depending on the deviation from
the setpoint – is either reduced or increased from the current speed to the “target
speed” (parameter
Target speed at setp.M1939
).
Customer settings M0041
Speed functions M1699
Speed functions M2148
Speed red. range M0836
Default value:
10.0 %
Setting range:
2.0 – 20.0
(deviation from the setpoint in %)
Set target speed before reaching setpoint position
Minimum speed for modulating duty.
Customer settings M0041
Speed functions M1699
Speed functions M2148
Target speed at setp. M1939
Default values:
10 rpm
Setting range:
6 ... 240 rpm
The adjustable speed range is indicated on the actuator name plate.
8.6.10.
Change-over between OPEN - CLOSE control and setpoint control
For actuators equipped with a positioner, it is possible to change over between OPEN
- CLOSE control (Remote OPEN-CLOSE) and setpoint control (Remote
SETPOINT).
Change-over via fieldbus command:
For control via fieldbus interface, the change-over is done via fieldbus command
Fieldbus SETPOINT
.
Switching behaviour:
●
Fieldbus SETPOINT
= 0 = Remote OPEN-CLOSE:
The actuator reacts to operation commands OPEN, STOP, CLOSE
●
Fieldbus SETPOINT
= 1 = Remote SETPOINT:
The actuator reacts to a setpoint signal (e.g. 0,0 ... 100,0 %)
If the operation commands are not transmitted via fieldbus commands, but via
<Additional inputs> or additional <Parallel interface>, a digital input for the MODE
signal has to be available and configured for change-over.
Configuration of digital input
Required user level:
Specialist (4)
.
Device configuration M0053
I/O interface M0139
Digital inputs M0116
Example
Use input DIN 1 for change-over:
Parameter:
Signal DIN 1 M0118
Setting value:
MODE
(wiring diagram designation:
MODE
)
Information
The logic for the digital inputs may be inverted. Depending on the parameter setting
(e.g.
Coding DIN 4 M0126
), the input is either
High active
or
Low active
. Default
setting of
MODE
input is
Low active
.
65
Actuator controls
ACV 01.2/ACVExC 01.2 Profibus DP
Application functions
