Default value: 2.5 %
Setting range: 0.5 % to 2.5 % (of the maximum setpoint E1)
Dead time
The dead time prevents the operation to a new setpoint within a pre-determined time
(0.5 to 10 seconds). The number of starts can be reduced by setting the dead time
to a sufficiently high value.
Figure 60:
Sensitivity setting
[P7]
Potentiometer sens (fine tuning)
[P9]
Potentiometer
Δ
E (dead band)
[P10] Potentiometer t-off (dead time)
Dead band setting
1.
Set selector switch to position Remote control (REMOTE).
2.
Connect setpoint E1 to customer connection XK (terminals 2/3).
3.
Set dead band using potentiometer
Δ
E [P9]:
→
Reduce dead band (increase sensitivity): Turn potentiometer counter-
clockwise.
→
Increase dead band (reduce sensitivity): Turn potentiometer clockwise.
Fine tuning
Information: Fine tuning is only useful for output speeds <16 rpm. For 1-phase
AC motors, fine tuning is not possible.
4.
Reduce dead band further by up to 0.25 % (increase sensitivity): Turn potentio-
meter sens [P7] counterclockwise.
Dead time setting
5.
Set dead time using potentiometer t-off [P10]:
→
Reduce dead time: Turn potentiometer t-off [P10] counterclockwise.
→
Increase dead time: Turn potentiometer t-off [P10] clockwise.
10.7
EMERGENCY command (EMERGENCY - OPEN/EMERGENCY - CLOSE)
— (Option) —
The EMERGENCY input (refer to wiring diagram) has to be connected to the control
voltage using an NC contact (closed circuit principle). In the event of an EMERGENCY
command (removal of the signal = NC contact is operated), the actuator runs to the
preset end position:
●
EMERGENCY - CLOSE input: Actuator runs to end position CLOSED.
●
EMERGENCY - OPEN input: Actuator runs to end position OPEN.
The EMERGENCY command is effective in all three selector switch positions (LOCAL,
OFF, REMOTE).
The actuator can immediately start when switched on!
Risk of personal injuries or damage to the valve.
→
Ensure that EMERGENCY signal is present when switching on.
→
If the actuator starts to run unexpectedly: Immediately press push button Stop.
49
SAExC 07.1 – SAExC 16.1/SARExC 07.1 – SARExC 16.1
AMExB 01.1
Commissioning – controls settings
