Why does the PCD2/3.H210 generate too few pulses in high temperature environments?

FAQ #100727

In case of high environment temperatures together with a configuration of very low frequencies, the PCD2.H210 or the PCD3.H210 could generate an incorrect amount of output pulses.

 

Symptom
If the module is exposed to high environment temperatures and a very low frequency range (9.5 – 2431 Hz) is configured, it may happen that the module does generate too few output pulses. In this situation 1 to 4 pulses per revolution can be "forgotten".

 

Reason
This phenomenon is caused by a timing problem of the FPGA programmation.

Solution
The FPGA version HD7 (introduced into production in February 2007) does correct this timing problem. In case you are concerned by this problem, please contact your local representative and ask for a new version of the FPGA (version HD7). This FPGA is mounted on the module (the version of the FPGA is indicated on a round sticker on the FPGA) and can be replaced easily.

 

Categories

PCD2 / Hxxx

PCD3 / Hxxx

Last update: 01.06.2015 00:29

First release: 21.06.2007 10:53

Views: 8566

The requested software / document is no longer marketed by Saia-Burgess Controls AG and without technical support. It is an older software version which can be operated only on certain now no longer commercially available products.

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