10
The electrical connection must only be performed by qualified personnel.
It is imperative that the relevant national safety regulations (e.g. VDE 0100)
are observed during installation, commissioning and operation of the device.
Ensure that the devices are disconnected from power before performing any
work. Failure to comply with the relevant regulations may result in severe
personal injury and/or material damage.
2.4
Limit signal transmitters
The limit signal transmitters can be set to any value between 0% and 100% of the stroke.
When the limit signal transmitter's switch is closed, the corresponding LED lights up.
The lower limit signal transmitter (channel CH1) is closed at values below the trigger point and
opens when the value exceeds the trigger point.
CH 1
0 %
100 %
ON
OFF
The upper limit signal transmitter (channel CH2) is open at values below the trigger point and
closes when the value exceeds the trigger point.
CH 2
0 %
100 %
ON
OFF
At feedback modules that are factory-fitted to the positioner, the lower limit signal transmitter is
set to 5%, and the upper limit signal transmitter is set to 95%.
2.4.1
Calibration by position
Lower limit signal transmitter (CH1)
Upper limit signal transmitter (CH2)
1. By means of a control signal, position the
valve to the trigger point for the lower limit
signal transmitter.
2. When the LED lights up: turn the
potentiometer in (-) direction until the LED
extinguishes.
3. Slowly turn the potentiometer in (+)
direction until the LED lights up.
1. By means of a control signal, position the
valve to the trigger point for the upper limit
signal transmitter.
2. When the LED lights up: turn the
potentiometer in (+) direction until the LED
extinguishes.
3. Slowly turn the potentiometer in (-)
direction until the LED lights up.
Содержание DSR 500-1
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