Raport, Power supply, Pow er supply – Delta Controls DPR-2000 User Manual
Page 38: Rys. 2b, Rys. 2c, 4÷20 ma, Current loop, Comm unic ato r current loop, Com municator
A
36 IOM-DPCDPR-A: FEB 2014
Fig.2b.
The link of transmitter and communicator or modem to <SIGNAL+> <SIGNAL-> transmitter terminals in
case of the resistance in current loop is
higher than 250Ω.
Fig.2c. The link of transmitter and communicator or modem to <SIGNAL+> <TEST+> transmitter terminals in
case of the resistance in current loop is smaller
than 250Ω.
+
TES
T
-TEST
Rys. 2b
-
+
SIGNAL
240
Ro
mA
4÷20 mA
+
_
F1
.
3
2
VWX
MNO
DEF
YZ#
5
6
PQR
*
+/
9
GHI
8
0
@%&
1
STU
4
JKL
ABC
7
RE
PV
F4
PF
F2
F3
F4
RAPORT
BELL
202
RS 232
Com
municator
Current loop
JUMPER
Pow
er
supply
BELL
202
RS 232
C
omm
unic
ato
r
Current loop
+
TES
T
-TEST
Rys. 2c
-
+
SIGNAL
240
4÷20 mA
+
_
F1
.
3
2
VWX
MNO
DEF
YZ#
5
6
PQR
*
+/
9
GHI
8
0
@%&
1
STU
4
JKL
ABC
7
RE
PV
F4
PF
F2
F3
F4
RAPORT
Ro
mA
JUMPER
Power supply
To measure the transmitter current without
disconnecting the measuring loop, connect
a milliammeter to control terminals <Test ->
and <Test +>.
D-Soft
D-Soft