ABB ControlIT 53MC5000 - Page 70

Figure 2-27. Current Input Signals to AI2&3 (Transmitters Have Power
Source)
Figure 2-28. Current Input Signals to AI2&3 (Transmitters Receive +24
V dc from Controller)
PIN 6 SIGNAL COMMON
PIN 8 SIGNAL COMMON
PIN 7 AI2
PIN 9 AI3
TB1
CABLE FROM TRANSMITTER
CABLE FROM TRANSMITTER
NO. 6
SCREW
NO. 6
SCREW
CHASSIS SAFETY
GROUND
CHASSIS SAFETY
GROUND
R3
R4
RESISTORS ARE 250 OHM
±
0.1 %
WIRED AS SHOWN EACH TRANSMITTER HAS ITS OWN POWER SOURCE AND DOES
NOT REQUIRE +24 V FROM THE CONTROLLER
-
+
-
+
PIN 6 SIGNAL COMMON
PIN 8 SIGNAL COMMON
PIN 7 AI2
PIN 9 AI3
TB1
CABLE FROM TRANSMITTER
CABLE FROM TRANSMITTER
NO. 6
SCREW
NO. 6
SCREW
CHASSIS SAFETY
GROUND
CHASSIS SAFETY
GROUND
R3
R4
RESISTORS ARE 250 OHM
±
0.1 %
WIRED AS SHOWN EACH TRANSMITTER RECEIVES +24 V FROM THE CONTROLLER
PIN 5 AI1
+
+
PIN 4 +24 VOLTS
-
-
Section 2. Installation
2-31