VAF instruments T-SENSE, Technical Manual

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6.3 INSTALLATION OF THE PEM4 TOUCH SCREEN
1. Install the PEM4 touch screen in a control cabinet or control panel in the ECR or on the bridge,
where it will be free as possible from moisture, large fluctuations of temperature and particularly of
vibration shock. Also influences such as large magnetic fields caused by transformers, relays or
electromagnets must be avoided.
2. All cable connections should be made using cables as specified in section 6.4.
3. Connect the RJ45 Ethernet from the stator control box and power supply to the backside bottom of
the PEM4 touch screen in accordance with Figure 4.
Figure 4 – ON/OFF switch and communication ports at backside bottom of PEM4 touch screen
4. Check for correct power supply and integrity of external wiring connections. Turn on power and
observe several readings, like torque, shaft speed, power etc.
Important notes

Never connect cable shields at both ends to ground, but at one end only, to avoid
earth loops.

To avoid interference on the signal cables, such cables must be installed as far as
possible from electric power cables used for power supply and stator.

Ensure that the ambient temperature at the PEM4 never exceeds 55°C.