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Ec＋
Ec-
FG
Tx＋
RF
section
Tx-
Rx+
Rx-
SG
FG
+24
V
0V
FG
Note: The FG wires of the dedicated
cables A and B should not be
connected to the FG terminal on the
detector (measuring section) side.
Terminal block
+24V
0V
T x＋
T x−
Rx−
FG
Power supply
Communication
External sync input DI,
Conductivity
signal input
(4 ~ 20mADC)
CVVS
Tx＋
Tx-
Rx+
Rx-
SG
Communication
cable
FG
CVVS
+24
V
0V
FG
Power
cable
Fig. 3.5.1 External connection
NC
(FG)
Rx+
SG
(FG)
COM
Density meter error or
COM
maintenance-in-progress
signal: DO1, COM1
Fig. 3.6 Terminals inside the converter
Converter
L1
L2
DI
COM
COM1
DO1
FG
AO+
AO-
COM2
DI2
DI3
Grounding terminal
Note: The ground should be connected to either the PE
terminal of the terminal bock inside converter or to the
grounding terminal of the case.
DI
D01
DI2
COM1
(FG)
Multiplier switching:
DI2, DI3, COM2
23
6 F 8 A 0 5 2 1
CVV
Power 100 to 240VAC, 50/60Hz
Ground (PE)
(Ground resistance: 100Ω or less)
CVV
External sync contact input
(Contact capacity: 24VDC, 1A or more)
Density meter error or
maintenance-in-progress contact
output
CVVS
Measured density output
(4-20mADC, 750Ω or less, isolated
Density correction multiplier switching
voltage input signal
(H: 20-30VDC, L: 2VDC or less, input
resistance about 3kΩ)
Ground
(Ground resistance: 100Ω or less)
DI3
AO+
AO−
COM2
AO (+, −)
4-20mA
Density output
(HART)
Ｌ ２
L1
AC Power
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