Parker BD-E Series, Manual

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20 BD SERVO DRIVES USER GUIDE
Cable routing
The mains cable should have a minimum length of 1 metre and needs to be terminated close to
where the mains earth connection is made. The safety earth lead, connected to the stud on the
side of the drive, needs to be closely routed with the mains lead. The motor and encoder cables
must run in close proximity and routed together for their entire length back to the drive. Unless
the cables are laid alongside each other in trunking, use cable ties every 500mm to anchor the
two cables together.
Where the cables have to pass through a panel or bulkhead, the integrity of the screen must be
preserved. Where possible, avoid using a connector. If a connector must be used, it should
have a full metal shroud which makes a 360
°
connection to the cable screen on both sides. The
body of the connector must be electrically isolated from any earthed metalwork - it may be
mounted on a separate panel insulated from the bulkhead.
Motor and Encoder Connections
The encoder cable has a 25-way D connector at the drive end which is plugged into the ‘Motor
Feedback’ socket on the drive. Tighten the jacking screws firmly. The metal housing on this
connector must not be removed. The encoder cable is fitted with a ferrite absorber at the drive
end which is essential for EMC compliance. This should be kept as close as possible to the
drive-end connector and not more than 150mm away.
The 5-way spade connector on the motor cable fits a mating connector on the base of the drive.
The exposed cable screen must be securely anchored under the clip adjacent to the connector
- this is an essential requirement.
AC supply connections
If a plug is used for AC supply connections it must conform to IEC309.
Warning - risk of electric shock
If the drive mains earth becomes disconnected, the case and signal I/O lines will become
live at 120V AC (limited to 10mA), due to the filter required for EMC compliance.
AC supply connections are made using the front panel screw connector. This should be wired
using 1.5mm
2
3-core mains cable. Do not wire the AC supply using individual leads running in a
conduit. The circuit should be protected by a 16A circuit breaker, and the isolator must break
both the live & neutral lines.
For permanently connected equipment, the switch should be marked as the disconnecting device
and should be mounted close to the equipment within easy reach of the operator.