Works setting: current input
The sampler is always delivered set on current input.
Selection of 0 ...+20mA or +4 ...+20mA is done in address 141. There is no
need to open the controller.
...change to voltage input:
For special applications the controller can be set to a voltage input of
0 ...+1 Volt or 0 ...+10 Volt.
This change should only be done by skilled personnel.
Follow the following steps:
Pull mains power, the sampler should not be connected to power !
Undo and remove the eight black Philips screws from the front plate of the
controller. Pull the front plate forward and remove the ribbon cable
connector if need be.
Set switches S3 / S4 on the motherboard to suit the connection required:
0...1V
= S3 open
and
S4 in position 1
0...10V
= S3 open
and
S4 in position 2
0/4...20mA = S3 closed
S4 in position 1
1 2
Reassembly is exactly the reverse. Now set up the input required using
addresses 140 to 143.
Base board:
CPU board
TTY signal:
Option V24 (RS232) signal:
TxD 20 mA
S1 in position 1*
TxD +12V
LBR1 on
LBR2 off*
TxD 0 mA
S1 in position 2
TxD -12V
LBR1 off
LBR2 on
TxD 20 mA
S2 in position 2*
TxD +12V
LBR4 on
LBR3 off
TxD 0 mA
S2 in position 1
TxD -12V
LBR4 off
LBR3 on*
AC-DC version:
AC version LBR5 off*
DC version LBR5 on
* = Normal delivery without option
Switch
Changing analogue input
asp-station d 2
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