Operation and Maintenance Manual and User Service Guide for Industrial Power WP10 Series Diesel Engine
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obtained. Then the actual position defection is operationally amplified by
PID
Ⅱ
governor, and then converted into the current control manner which
can output the drive current to the executor and accordingly change the
motion displacement of executor.
5.12.1 It is suggested to install the speed sensor onto the gear ring of engine.
In addition, the clearance between the sensor and teeth crest should be
0.4mm-0.8mm. Firstly rotate the sensor to the teeth crest and then return
it back by 1/3 (pitch 1.5mm) or 1/2 circle (pitch 1mm), then tighten the
nut. If there is no flywheel gear ring, use other sensing gear of which
material must be permeability magnetic material. Moreover, within
engine running speed, the frequency output by the sensor should be not
less than 1000Hz.
5.12.2 The electromagnetic executor is mounted on the engine and suggested
to be installed together with fuel pump. But in special cases, external
mounting type can be used.
5.12.3 Speed controller should be installed in the protection case without
any intense impact or electromagnetic interference. In addition,
sufficient space should be reserved for installation, maintenance and
thermal dissipation. The housing of rpm controller should be properly
grounded. In addition, speed sensor and speed trimmer potentiometer
should be connected to the controller by shield cable of which shielding
layer should be grounded at one point of controller.
5.12.4 The governor has the working voltage of DC 24V (12V optional) and
can be powered by the control battery of engine, starting battery or other
regulated/non-regulated power supply, but the peak power consumption
and voltage fluctuation of system should meet the related requirements.
If the governor is powered by a starting battery, provide a charger and
ensure the battery electricity is sufficient. With engine running, battery-
output-voltage dropping for short time will not impair the normal
working of governor.
5.12.5 Precautions for wiring of governor power supply:
a.
The positive pole (2 pin) of speed controller on electronic governor
should be connected to the positive pole of 24V battery via the switch of
power supply (stopping switch) and fuse (if needed). Namely, the
controlled is directly powered by the positive pole of battery.
b.
The negative pole (1pin) of speed controller on electronic governor
should be directly connected to the negative pole of battery. If the
