Table of Contents
Advertisement
Installation and commissioning
February 2023
Figure 4-32: Sensor adjustment example
Distance tooth tip - Sensor = 0.95 mm
A. Eddy current sensor PR 6423
B. Sensor over tooth tip, U = -5.2 V
C. Sensor over tooth base, U = approximately -21 V
Important for a proper speed measurement is also a rigid and vibration-free holder for the
sensor. Vibrations between sensor and trigger wheel will induce additional voltage pulses
and may produce measuring errors.
Note
Mount and secure the sensors so that a contact to the trigger wheel during operation is
excluded. Disregard of this may lead to damages of the sensors and as a consequence to
the breakdown of speed measurement and detection of the rotational direction.
When connecting sensors, bear in mind that the cables are not installed in parallel to high
power cables or to cables of power converters to avoid disturbances.
Note
When installing intrinsically safe systems, the installation has to be carried out according
to the standards for electrotechnical installations and the legal regulations of the
manufacturing country only by an expert with experience and knowledge of explosion
protection.
In Ex-applications the speed sensor may only be connected to intrinsically safe circuits
(safety barrier).
For the adjustment of eddy current measuring chains at the machine, proceed as follows:
1. Connect the measuring chain to the AMS 6300 SIS. The measuring chain is directly
2. Connect a dc voltmeter to the signal output of the converter (pins GND /OUT).
3. Adjust the sensor, until the dc-output level corresponds to the calculated
60
supplied by the monitor (-24 V DC). If the AMS 6300 SIS system is not installed yet,
supply the measuring chain with an external power supply (-24 V DC).
adjustment voltage U
Adjust
For this adjustment, the sensor has to face a tooth of the trigger wheel.
.
min
Operating Manual
MHM-97442
MHM-97442, Rev. 2.06
Advertisement
Table of Contents
