BRUEL & KJAER VIBROCONTROL 8000 - 8.1.5 Wiring Proximity - Speed Sensors; 8.1.6 Wiring Magnetic Pickup - Speed Sensors; 8.1.7 Wiring Proximity Switch - Speed Sensors

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EN
8.1.5 Wiring Proximity - Speed Sensors
Wire speed sensors as shown. Although Tachometers can be installed on any UMM channel, Phase
Trigger channels are limited to Channel 4 (slots 4-9) only. Power supplied is -24 Vdc.
Figure 8-5) Moving Coil Velocity Sensor Wiring
8.1.6 Wiring Magnetic Pickup - Speed Sensors
The UMM can also accept Magnetic Speed Pickups. The UMM can trigger from either wiring polarity.
Figure 8-6) Phase Trigger Magnetic Sensor Wiring
8.1.7 Wiring Proximity Switch - Speed Sensors
The UMM can also accept an +18V Proximity Switch. The UMM provides a load between the sensor
signal line and common. Since the UMM provides negative power, the switch must be an NPN type
which requires the output load between the signal line and the higher supply voltage..
Figure 8-7) NPN Inductive Proximity Switch Wiring
IMPORTANT
If using an externally powered proximity switch or optical pickup, the output voltage must
be kept less than +18V to prevent the sensor from driving current back into the UMM.