ABB ScreenMaster RVG200 Instruções de colocação em funcionamento - Página 7
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Analog input / relay / hybrid connections
Notes.
Tighten terminal screws to a torque of 0.1 Nm (0.9 lbf.in).
Analog inputs:
3-Lead RTD: 3-leads must have equal resistance, not exceeding 20 each
–
–
for mA input types, to ensure loop continuity when the recorder is switched off, fit a suitably-rated diode (for example,
type 1N4148 or equivalent)
Inputs 1 to 6
*
+
*Each thermocouple input must have either a cold junction assembly (part number CM30/0052) or shorting link (part number RVG200/0118) fitted.
Each analog input card with a thermocouple input must have a minimum of 1 cold junction assembly fitted.
Cold junction
Fig. 5 Analog input / relay / hybrid connections
Connecting a 2-lead temperature transmitter
24 V DC
+ +
Current limited
transmitter
to 22.8 mA
_
maximum
Using an external 24 V power supply
Fig. 6 Connecting a 2-wire temperature transmitter
CI/RVG200–EN
A, B, C, D
A, B, C, D
Analog Input
Relay
N/C
1
Input 1
N/O
2
C
3
N/C
4
Input 2
N/O
5
C
6
N/C
7
Input 3
N/O
8
C
9
N/C
10
Input 4
11
N/O
12
C
N/C
13
Input 5
14
N/O
15
C
N/C
16
Input 6
N/O
17
C
18
A, B, C, D
Analog input
2-wire
_
Input 1
C, D
Hybrid
1
1
1
2
2
3
3
4
2
4
5
5
6
3
6
7
7
8
4
8
9
9
10
5
10
11
11
12
6
12
13
1+
13
14
2+
14
15
15
3+
16
4+
16
17
5+
17
18
Common
18
Analog
1
input
2
+
3
Input 1
Using an internal Tx power supply or hybrid board
E
Power supply
L
1
100 to
240 V AC
N
2
3
+
4
24 V
DC
–
5
6
7
8
Tx
9
+
Tx
10
–
Tx / Rx
+
11
Tx / Rx
–
12
Communications
13
common
RJ45
USB
2-wire
_
+
transmitter
Analog or digital output 1
1
Tx PSU 1
2
3
Analog or digital output 2
Tx PSU 2
4
Hybrid
+
1
_
2
3
4
7