10
Wiring
WARNING: Wiring Installation must be carried out by a competent electrician and is subject
to I.E.E. wiring regulations (BS 7671:1992) and/or local standards.
Hazardous voltages must be isolated before service work is carried out.
The clamping bar on the control unit performs only an earth function and does not provide strain
relief. Secure all cables carried in conduit at both ends using a suitable anchorage method in the cab-
inet.
If the mains power is known to be noisy or suffer from occasional brown-outs or black-outs then a
correctly rated (20w) un-interruptible power supply (UPS) should be used to ensure a clean continu-
ous mains power supply to the 5000 controller. This must be located as close as possible to the unit.
To comply with EMC requirements, wire the control unit using the specified cable sizes and shield
connections. Clamp all signal cable shields to ground using the clamping bar provided on the control
unit. Connect all cable shields to ground at the control unit end only, with the exception of the cables
that connect the display and pressure sensors. Use Belden 8735 or equivalent.
The unit case and PA6 must be connected to Ground.
Using the Cable Clamp
A clamping bar is provided on the control
unit for termination of cable screens
where necessary.
The cable should be prepared by cutting
around the outer sleeve, taking care not to
damage the screen (1).
Pull the sleeving apart to expose 1/3”
(8mm) of the screen (2).
Place the exposed length of screen under
the clamp bar and tighten the screws (3).
8mm
(1)
(2)
(3)
