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mAI085-MB Actuator Interface Technical Manual /6
Distributive Intelligence
CMC INDUSTRIAL ELECTRONICS LTD
ID Label Description
9 Input Common Common connection for inputs. Inputs accept 8-32VDC of either polarity,
maximum load is 20mA.
10 Modbus Port Modbus network port - see Appendix for connections details, wired DCE
11 Input Power
Terminal
V+
G
V-
22 -26 VDC @ 2.0A
Earth Ground
VDC Common
12 Output Power and
Network
Connections
V+
D_H
SH
D_L
V-
24 VDC fused at 1.75A
Data + (non inverted)
Shield
Data - (inverted)
VDC Common
13 Controller Network
Expansion
Download /
Upload Port
RS232 connection for repeaters or fiber-optic cable drivers for the
controller network. Operates in parallel with the RS-485 port.
Port for exporting parameters to a comma delimited file - see Appendix B
for port wiring details, wired DTE
Table 2 - Description of Terminals and Connections
3.1 Power and Communications
A 2 or 3 pair shielded power and communication cable is utilized. Low capacitance twisted pair
cable is recommended. The cable should be sized to ensure voltage drop on the power
conductor does not exceed actuator controller input voltage specifications. The mAI085-MB
can accommodate up to a maximum of 31 actuator controllers. See drawing 10284 in the
Appendix for complete cabling details.
X
654321
J2
WHT/ORG
ORG/WHT
WHT/BRN
BRN/WHT
WHT/GRN
GRN/WHT
WHT/BLU
BLU/WHT
SHIELD
X
654321
J2
120 Ohm 1/
4W
Terminating
Resistor
5
DC Common
Data -
Shield
Data +
24VDC Output
To force close
dry contact if used
mAI085-MB
Actuator Interface
mAC185-MB
Actuator Controller
mGP145-MB
Gate Positioner
mGP145-MB
Gate Positioner
4321
SHIELD
BLACK
WHITE
BLACK
RED
BLACK
GREEN
GREEN
WHITE
BLACK
RED
SHIELD
2 Pair
Cables
3 Pair
Cables
Data Cable
Pairs 20ga 22ga
2 9402 8723
3 9973 8777
Belden or equiv.
24
DC Common
Data -
Shield
Data +
D+SD-C
24VDC
WHT/ORG
WHT/BRN
BRN/WHT
WHT/GRN
WHT/BLU
BLU/WHT
SHIELD
ORG/WHT
GRN/WHT
P1C
Common
Input P1
Figure 3 - Recommended Network and Power Connections