Bearing Monitoring for Smoke Extract Fans
Smoke Extract Fans, whether as Radial- or Axial fan, should keep emergency exits and paths free of smoke. Even if there is no normal air ventilation required, a save start and operation is demanded in case of fire to achieve the nominated run time for such a fan. A proper function of the motor bearings is there for indispensable.
The bearing monitor unit that was especially developed for a fan manufacturer evaluates different frequencies out of the swinging acceleration that needs to be measured. The evaluation is more or less independent from the type of fan, motor and bearing and it even detects pre-damages of the ball bearings from the induction motors.
However a little more complex is the monitoring of the bearing conditions at EC-fans, because the measured frequencies overlap with the switching frequencies of the EC-Controllers.
The evaluation is quite easy as a simple traffic light control (green-yellow-red) at the device. A special software can be applied for detailed damage analysis.
2019-10-29
Category:
General
Date:
2019-10-29
FFU Service
A big research institution for Micro- and Nano-technologies in Nordrhein Westfalen enlarges their cleanroom capacity this summer. The additional cleanroom surface is covered by FFU's from NICOTRA||Gebhardt that are controlled and monitored by an existing FFU-control centre since last Tuesday.
The commissioning runs without any problem, besides to the correct addressing only some max-speeds needs to be set by hand, what is really no issue with our control devices for EC-fans.
2019-08-15
Category:
General
Date:
2019-08-15
Data link to Beckhoff-PLC via OPC-UA
Our local water supply company is realising a new waste water handling appliance in a small town. The control of the rake bare is our task inside the complex structure.
Two different operation modes are possible; either the difference of water level in front and rear the rake or the level of waste water in front of the rake is used to control. The drive of the rake is controlled by frequency inverter. The measurement of the filling level is realised by 2 radar sensors.
There is a Beckhoff-PLC used as industrial PC with 12’’ touchscreen. The I/Os are integrated by Ethercat, the link to the FMS is done via OPC-UA. All this is programmed by TWINCat3.
2019-07-25
Category:
PLC / automation
Date:
2019-07-25
Lounges 2019 - Cleanroomtradeshow
As every year we followed the invitation of an OEM costumer for our fan control devices to visit him at the cleanroom lounge in Karlsruhe.
There we did a lot of interesting talks about the control of fans increasingly under the aspect of IoT.
Booth NICOTRA Gebhardt (Regal Beloit)
2019-02-08
Category:
General
Date:
2019-02-08
Handheld to control and parametrize EC-fans
On of the leading HVAC distributors and contractors in Israel uses, by its own account, mainly EC-fans from ebmpapst and Ziehl Abegg for his appliances.
From now he will program and control it's EC-fans with Modbus- Interface by technologies out of the Vogtland. With that the handhelds of the unqiuom series will be used at 24 countries worldwide.
2018-12-11
Category:
General
Date:
2018-12-11
Control and Visualisation of Air Conditioning at SIEMENS SPS S7
Right in time for the Christmas Business and ordered by a big bakery supplier the control and the suitable visualisation of the Air Conditioning of a donut production line was passed to customer at the gates of Warsaw.
Realised on an S7-1500 programmed with TIA-portal it guarantees the air conditioning of 2 rooms, which could do both, proofing and resting.
2018-11-27
Category:
PLC / automation
Date:
2018-11-27