4 control connections, 1 control – Pulsafeeder Pulsar DLC XP RC User Manual

Page 13

5.4 Control

Connections

The DLC-RC is attached to the DLC-XP through one 10 conductor shielded cable. This cable transmits
the encoder information from the DLC-XP to the DLC-RC -- allowing the DLC-RC to know the
position of the stroke adjustment shaft at all times. Additionally this cable transmits the synchronous
motor control and power signals from the DLC-RC to the DLC-XP. This allows the DLC-RC to change
the position of the stroke adjustment shaft. Care should be taken to ensure that the control connections
are made properly. Failure to do so will result in unpredictable operation.

The DLC-XP to DLC-RC separation distance should be no more than 1220m (4000 ft). The control
wiring must not be routed in a conduit that also contains power conductors, as this will cause
electrical interference and result in erratic operation. Separate conduits must be used for high
voltage and low voltage circuits.

5.4.1 Control

Use Belden 1422A (5 Pair), 24 AWG, 7X32 strand, NEC CM, UL 2919, 30V, 80C, shielded or
equivalent.

1. Connect the 4 encoder lines from the DLC-RC J17 terminal block to the DLC-XP J2 terminal block.

2. Connect the 6 control lines from the DLC-RC J18 terminal block to the DLC-XP J5 terminal block.

The shields for both cables should be terminated at the DLC-RC J19 only. The wiring is straight
through -- connect position 1 on J17 to position 1 on J2 and position 1 on J18 to position 1 on J5.
Refer to Figure 4.

ERMINATE THE CONTROL SHIELD AT THE

DLC-RC

END ONLY

ERMINATING THE SHIELD AT

BOTH THE

DLC-RC

AND

DLC-XP

WILL POTENTIALLY CAUSE A GROUND LOOP RESULTING IN

UNPREDICTABLE OPERATION AND

OR FAILURE OF THE UNIT THAT IS NOT COVERED BY THE

ARRANTY

Wire the control connection carefully. Double check wire order (color codes) before proceeding.
Double check all connections to confirm good electrical contact between the terminal block clamp
and bare wire. Make sure the clamp is on the wire, not the insulation. Insure that bare wire is
not frayed and does not rise above dividers.