8.
DC voltage input - powered from optional supply using +12V
3 .4
Input type selector links
The input type selector links must be set to suit the input type required. Input links allow selection of
4-20mA, 0-1VDC, 0-10VDC or 0-100VDC input. Note that the x10 link (LK11) is used for the 0-100mVDC
input range. The 4-20mA input will allow both 4-20mA and 0-20mA input ranges. Note: Input link LK1 must
always be in unless an optional input board is fitted.
3 .5
Remote input connector
The LD4-LN has a software function named
R.INP
or remote input.
Closure of the remote input connector via a switch or relay contact will cause
the selected remote input function to operate. Choose the switch type to suit
the remote input required e.g. for a
ZERO
function a momentary action switch
is most commonly used, for a display hold
dHLd
a latching switch may be
required.
Page 9 of 46
LD4LNMAN-1.0-1
REMOTE
IN
GND
+
PLUG IN
AFTER
WIRING
LATCHING OR
MOMENTARY
ACTION SWITCH
LK11
LK11
LK11
LK11
LK11
X10
X10
X1
0
X10
X10
LK10
100V
100V
100V
100V
100V
10V
10V
10V
10V
10V
1V
1V
1V
1V
1V
LK2
VO
LT
S
4-20mA
LK10
LK2
VO
LT
S
4-20mA
LK10
LK2
VO
LT
S
4-20mA
LK10
LK2
VO
LT
S
4-20mA
LK10
LK2
VO
LT
S
4-20mA
4-20mA or
0-20mA
Input
0-100mV
Input
0-1V
Input
0-10V
Input
0-100V
Input
SENSOR
+
-
-
-
UN
REG
COM
INPUT EXCITATION
+
+
PLUG IN
AFTER WIRING
Shield
+
-
Supply
