Woodward VariStroke-DX, Инструкция по установке и эксплуатации

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Manual 35132 VariStroke-DX Duplex Hydraulic Servo Skid
Woodward 26
Power cylinder Electrical Connection with VS-DX
Figure 3-6. Cylinder Position Sensor Connection Scheme
RISK OF SHOCK AND
DECREASED
EMC
PERFORMANCE
All bare shield wires of the field wiring cable must be isolated from
the Power Cylinder chassis or any conduit used. Woodward
recommends using suitably rated heat shrink tubing on the shield
wire when connecting at the terminal block, as well as tubing over
the length of the customer cable. Failure to isolate the shield wire
results in a connection of BAT- to the cylinder chassis.
An electrical short of the bare shield wire to chassis could lead to:
•
Decreased EMC performance and read-out accuracy.
•
A hazardous accessible voltage on the external cylinder chassis
which could result in electric shock. The severity of this shock
risk is dependent upon each installation, configurations of servo
battery supply and grounding, and the bonding provided by
installation of the Power Cylinder.
For more details refer to Power Cylinder Manual 35163.
Input Power
The VS-DX requires an electrical power source capable of a supplying the necessary output voltage and
current at full transient conditions. For each VS-GI unit the electrical power supply should be able to
provide 3.1 A at 18 V (dc) continuously, with a peak of 10 A maximum transient.
Use a separate electrical power source to each VS-GI unit. To supply power use terminal blocks:
•
2, 3, or/and 4, 5 (when using redundant supply source) for unit VS-GI unit “A”
•
33, 34 or/and 35, 36 (when using redundant supply source) for unit VS-GI unit “B”
Released