Parker PDHX-E Series User Manual page 25

Controller Signals
There are 5 front-panel connectors associated with control inputs and outputs as shown in
the diagram. Their functions are as follows:
1. RS232/RP240 (8-way mini-DIN socket). This socket is normally used for the RP240
Remote Operator Panel but may also be used as an alternative RS232C connection from the
host controller. The RS232 connections are in parallel with those on socket 2.
2. RS232/RS485 (9-way D-connector). This is the connector normally used for serial
communication. The initial release of the X150E controller will be supplied with RS232
communication as standard, RS485 being a factory-fitted option. Subsequent issues will
allow either RS232 or RS485 to be user-selected.
3. External encoder (9-way D-connector). An encoder fitted to this input is used for the
connection of an external encoder for following applications.
4. Primary encoder (9-way D-connector). A motor or load mounted encoder is fitted to this
input.
Note: The ICON command controls the connection of the encoder inputs. Bit 'ENC' must be
set to 0 to use the encoder inputs.
5. Main I/O connector (23-way two-part screw terminal connector). All the user-
programmable inputs and outputs, as well as registration, stop, home and limit inputs, appear
on this socket.
Controller Signal Connections
When you make connections to the following ports:
RS232/RP240
RS232/RS485
Ext. Enc.
Prim. Enc.
Observe the following wiring recommendations:
Connections must be made using braided shield signal cable. A foil screen is not suitable for
achieving the required EMC performance. The shield of the cable must be 360° bonded
through a suitable connector housing to the mating half of the drive connector. The
connectors must be conductive bright tin plated, not zinc passivated (i.e. those of a
gold/yellow apperance). D-type connectors must be of the 'dimple-D' type, which offer better
screening performance than conventional plain sided D-type connectors.
Encoder screened leads that are routed to the same area as the motor must be arranged to
avoid creating a loop around the mains inlet cable, see Figure 3-4.
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