TDC‑3000 BASIC,E‑PLCG PLC Gateway,51400997‑200

TDC‑3000 BASIC,E‑PLCG PLC Gateway,51400997‑200

Generally, EMC Directive cabling on the LCN systems follow these rules:

• any cable exiting an enclosure is shielded

• cable shields are terminated at both ends of the cable to chassis ground

• metallic connector housings (back-shells) completely enclose the cable for contiguous

shield

• braid or braid over foil is used on coaxial cables

• foil is used as a sheild where applicable (on multi-pair cables).

1. Remove the rear center-section cover of both towers by removing four M5 flat-head

screws, exposing the EMC Directive I/O boards as shown in Figure 2-6.  Note that the

I/O boards have the face plates attached to the free edge of the board.  The face plates

are secured to the sheet metal module with screws.  The cards seen in Figure 2-6 are a

typical example for Tower #1.  Note some chassis slots are not used and have filler face

plates covering the board slot.  The cables from these board face plates to the transition

panels will have been installed at the factory

Note there are two TP485 cards, in slots 1 and 9.  The TP485 in slot 9 of each tower

provides the TPLCN interface.  The TP485 in slot 1 in each tower provides the

connection, at J3 (see Figure 2-4), and interface for thermocouples that sense the

module’s temperature (non-EMC Directive equipment)

For EMC Directive cabling, the connections you will make in the following steps is on

the transition panel shown in Figure 2-7.  Note there is one exposed transition panel

located at the bottom (see Figure 2-7).  The panel has connectors and cable clamps on it

that will be used to secure cables you will install.  Both towers have the same locations

for specific connector/clamp brackets but the bracket types in certain locations may

differ depending on the options installed

Note the Optional EPLCG Relay Panel in Figure 2-5 above.  It can be mounted above

the transition panel, as shown, in the tower containing an optional EPLCG (see Section

2.8.5).

Figure 2-8 and Figure 2-9 shows the EMC Directive TP-485-3 I/O board face plate.  The

designed cable(s) attached to this card face plate is also terminated to ground (sheet metal

module) through the attaching screw on the face plate.  This I/O board provides the current

loop interface between the modules located in an Enhanced Micro TDC3000 tower