Woodward ProTech 203, Руководство по эксплуатации

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ProTech 203 Overspeed Protection System Manual 85204
4 Woodward
Installations with severe electromagnetic interference (EMI) may require shielded
cable run in conduit, double shielded wire, or other precautions. Contact
Woodward for more information.
Plant Wiring
Figure 2-1 is the plant wiring diagram for the ProTech 203 system. Figure 2-2
shows the proper routing and stress relief for all field wiring entering the ProTech
system. Field wiring to the ProTech system should be between 1.5 and 6 mm²
(10 and 16 AWG) wire for the power supplies and between 0.3 and 4 mm² (12
and 22 AWG) for all other I/O runs.
The ground wires for the power supplies of all three units must be
connected to the identified PE ground terminal on the chassis.
Additionally, the ground wire for each power supply must also be
connected to the applicable connector.
HIGH VOLTAGE—When wiring the interposing relays, be sure to wire
both contacts with the same polarity. Failure to do so will create a
potential shock hazard and therefore possible injury or death.
If the ProTech 203 system is being installed in a hazardous environment, please
attend to the following warnings:
EXPLOSION HAZARD—Substitution of components may impair
suitability for Class 1, Division 2.
Do not disconnect equipment unless power has been switched off or
the area is known to be non-hazardous.
All input and output wiring must be in accordance with Class I
Division 2 wiring methods, and in accordance with the authority
having jurisdiction.
All peripheral equipment must be suitable for the location in which
they are being used.
Installation Check-out Procedure
When installation is completed, perform the following check-out procedure before
powering up the device.
1. Visual
inspection
a. Ensure that all mounting hardware is tightened and that no wires or
cables are pinched.
b. Check for correct wiring according to the plant wiring diagram.
c. Check for broken terminals or loose terminal screws. Ensure that all
ribbon cables are fully seated and clamped in place.
d. Check the speed sensor (MPU) for visible damage. Check the
clearance between the gear and the sensor and adjust if necessary.
See manual 82510, Magnetic Pickups and Proximity Switches for
Electronic Governors.