When is a backup power supply required for interface protections?

Whenever the interface protection is installed as independent device from the photovoltaic inverter, the standards require an auxiliary power supply which supports the interface protection (IP), the interface switch (IS) and a possible back-up device in the event of a power failure. _____________________________________________________________________ Other information on this topic Visit the website page dedicated to Backup [...]

By |2021-06-17T14:48:10+02:00May 5th, 2021|, , |Comments Off on When is a backup power supply required for interface protections?

What storage technology is used?

PMVFUPS01 guarantees the necessary energy by accumulating it in capacitors, thus avoiding the use of batteries which require maintenance. _____________________________________________________________________ Other information on this topic Visit the website page dedicated to Backup power supply for interface protection units.

By |2021-06-21T15:17:24+02:00May 5th, 2021|, , |Comments Off on What storage technology is used?

How long does it take to recharge PMVFUPS01?

A maximum time of 15s is required to fully charge the storage capacitors. The output voltage is present only when the charge is completed. It must be considered that the recharge is required at the very first switch on as well. _____________________________________________________________________ Other information on this topic Visit the website page dedicated to Backup power [...]

By |2021-06-21T15:17:41+02:00May 5th, 2021|, , |Comments Off on How long does it take to recharge PMVFUPS01?

How to choose the interface and back-up switches to be coupled to PMVFUPS01?

PMVFUPS01 accumulates enough energy (200Ws) to correctly drive PMVF series interface protection, a BF or B series contactor by LOVATO Electric acting as an interface switch and the shunt release of the backup. The selection of the right contactor according to the AC3 power is suggested on PMVFUPS01 user’s manual. In case of third party [...]

By |2021-06-21T15:17:54+02:00May 5th, 2021|, , |Comments Off on How to choose the interface and back-up switches to be coupled to PMVFUPS01?

How does the hour counter function work? How does it differ from the other functions?

The Hour counter function allows to count the working hours of a machinery and signal the reaching of a threshold by energizing the relay output, for example to signal a request of maintenance. The hour counter (expressed in hours) is updated and saved in the memory of the TMM1 NFC every 10 minutes and compared [...]

By |2021-06-21T15:22:06+02:00May 4th, 2021|, |Comments Off on How does the hour counter function work? How does it differ from the other functions?

Is it compulsory to use retaining clips to fix industrial relays on the sockets?

No, it is not, but it is warmly suggested. The relays are studied to stay firmly on the sockets without the clip in standard conditions, however, the clips guarantee a perfect stay in place even in case of heavy shock or vibrations. Consider not only the destination of the machinery or panel that could be [...]

By |2021-06-17T14:46:00+02:00April 19th, 2021||Comments Off on Is it compulsory to use retaining clips to fix industrial relays on the sockets?

Are LOVATO Electric HMIs able to communicate only with LOVATO Electric devices?

No, our HMIs can communicate with all devices that have an RS485 / 232/422 / Ethernet port and support Modbus-RTU Master / Slave, Modbus-TCP Client / Server, SIEMENS S7 Ethernet, MTTQ, or OPC UA Client / Server protocols. _______________________________________________ Other information on this topic Visit the website page dedicated to HMI. Check out our video tutorials [...]

By |2021-01-04T11:12:33+01:00January 4th, 2021|, |Comments Off on Are LOVATO Electric HMIs able to communicate only with LOVATO Electric devices?

How many devices can I connect to an HMI?

There is no predefined maximum number, theoretically it is unlimited. From a practical point of view, the limit is conditioned by the number of devices allowed by the network in which they are located (eg RS485 network) and by the possible traffic congestion on the network itself. _______________________________________________ Other information on this topic Visit the [...]

By |2021-01-04T11:06:32+01:00January 4th, 2021|, |Comments Off on How many devices can I connect to an HMI?

Is it possible to manage the access permissions to the HMI to exclude some users from using certain functions?

Yes, by default there are already three levels of access that you can view by following the path: ProjectView> Security> doppio click su UserGroups These three user groups cannot be deleted or renamed, however you can change the authorizations and other settings. _______________________________________________ Other information on this topic Visit the website page dedicated to HMI. [...]

By |2020-12-22T10:08:02+01:00December 22nd, 2020|, |Comments Off on Is it possible to manage the access permissions to the HMI to exclude some users from using certain functions?
Go to Top