User`s guide

Page 14

Controlinc 1746-C (Version 5.21) Network Master Users Guide (2004-11-18)

3.1.3. Step 3. Route Cable away from Electrical Interference

Network cables should enter the electrical enclosures and the

bottom or lowest point (on 320A systems, this is near the

transformer end and normally in a counter clockwise direction

to the topside of the TBM). Never install network cable in the

same conduit with power conductors. Never route the network

cable through the high voltage contactor area. On 320A

systems, the cable should never lie across the TBM or hinder

the protective cover of the TBM. Always use the shortest

distance and keep access cable to a minimum.

See Figure 3-1

3.1.4. Step 4. Observe Polarity and Network

Grounding

Each network connection is polarized + and - on wiring

diagrams. Always use consistency in wiring and the use of

wire colors to track polarity. The cable shield (or “drain wire”)

must be connected to the designated “shield” terminal at each

port of each actuator. The shield must be connected to earth

ground at only one point. Some networks require a jumper

between the shield connections on ports A & B of the actuator

to carry the shielding through the network. The shield

connection of each actuator is isolated from earth ground.

Do not allow the shield to touch other circuits or the metal enclosure.

3.1.5. Step 5. Wire Preparation and Connections

Screw terminal connections on the TBM and in the TEC2000 terminal chamber have wire clamps,

which will accept conductors with out terminals. Wire terminals may be applied if desired but are not

required. Strip conductor insulation back 3/8” when connecting directly to the TBM screw terminals. Do

not allow wire clippings to fall on the TBM or into the enclosure.

Protect the conductors and shield to prevent them from contacting any other circuits or earth ground.

Use plastic electrical tape or heat shrink tubing to prevent bare conductors from contacting other

circuits or earth ground.

See Figure 3-1

3.1.6. Step 6. Test Network

Use EIM’s Configuration and Control Utility (CCU) to test the network prior to connecting to the host or

network master. The CCU is a Windows application, which will run on a laptop. Use a RS232 to RS485

adapter or EIM’s Network Interface Unit (NIU) to connect the laptop to the network. Test each actuator,

one at a time, to determine that all network connections are good and each actuator is functional via the

network in remote.

Figure 3-1

Correct termination of the Network

to a Controlinc 320A Actuator