23.5.4 Sensors
23.5.4.1 Speed sensors
Engine speed sensor
The rotation speed of the engine is measured with two touch free
inductive PNP-type proximity switches. The sensor is supplied
with a 10 - 30 V DC supply voltage (normally 15 V DC in the
WECS). The third pin of the sensor is the speed proportional pulse
train output. The voltage level of pulse output varies between two
fixed levels; 0 V DC and +15 V DC (supply voltage).
The electronics of the sensor is resin-moulded into a tubular
housing of nickel plated brass with external thread of M18 x 1.5
mm. The cable is connected by means of a four pole Euchner BS4
connector.
To install the sensor turn the engine until the top of a cog is
visual in the sensor mounting hole. Screw carefully the sensor
completely in by hand. Unscrew it approximately 1.5 revolutions
for a sensing distance of 2.0 - 2.5 mm, and tighten the counter nut
well with a spanner.
Note!
The engine must not run while the sensor is mounted.
Engine speed sensors
A
2.5mm
+12VDC
GND
1
2
3
4
SIGNAL
A
Fig 23-26
202364
32-200115/II
Instrumentation and Automation
23
WÄRTSILÄ 32
23-33
Содержание VASA 6L32
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Страница 26: ...01 Main Data Operating Data and General Design 32 200634 01 01 8 W RTSIL 32...
Страница 60: ...Appendix A Environmental Hazards 200507 02A 10...
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Страница 98: ...04 Maintenance Schedule 32 200623 01 04 14 W RTSIL 32...
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Страница 162: ...08 Operating Troubles Emergency Operation 32 200402 01 08 8 W RTSIL 32...
Страница 164: ...Specific Installation Data 2005 01 09 2...
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Страница 216: ...Appendix A Testing of cylinder tightness 32 200142 A 4 W rtsil 20 32 34...
Страница 226: ...13 Camshaft Driving Gear 32 200546 02 13 10 W RTSIL 32...
Страница 253: ...U tube manometer Fig 15 12 401508200050 32 200549 10 Turbocharging and Air Cooling 15 W RTSIL 32 15 19...
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