Figure 58:
Electronic positioner board
[MP1] Measuring point (–) for actual value E2
[MP2] Measuring point (+) for actual value E2
[MP3] Measuring point (+) for setpoint E1
[MP4] Measuring point (–) for setpoint E1
[5]
Label with signal indication
[V10] Red LED: E1/E2 <4 mA
End position CLOSED
1.
Set selector switch to position Local control (LOCAL).
2.
Move valve to end position CLOSED.
3.
Connect lower setpoint to customer connection XK (terminals 2/3). The lower
setpoint (0 V, 0 mA or 4 mA) is indicated on the label [5].
4.
If the red LED [V10] E1/E2 <4 mA is illuminated:
4.1 Verify polarity of setpoint E1.
4.2 Check whether external load is connected to customer connection XK
(terminals 23/24) (observe max. load R
B
), or
4.3 Connect terminals 23/24 across customer connection XK (terminals 23/24).
5.
Measure setpoint E1: Connect measuring device for 0 – 5 V to measuring points
[MP3/MP4].
➥
For a setpoint E1 of 0 V or 0 mA, the voltmeter shows 0 V.
➥
For a setpoint E1 of 4 mA, the voltmeter shows 1 V.
6.
If measured value is not correct: Correct setpoint E1.
7.
Measure actual value E2: Connect measuring device for 0 – 5 V to measuring
points [MP1/MP2].
➥
For an actual value E2 of 0 mA, the voltmeter shows 0 V.
➥
For an actual value E2 of 4 mA, the voltmeter shows 1 V.
8.
If measured value is not correct: Re-set potentiometer or electronic position
transmitter and perform adjustment once again, starting from step 1.
47
SAExC 07.1 – SAExC 16.1/SARExC 07.1 – SARExC 16.1
AMExB 01.1
Commissioning – controls settings
