Lenze TCF Series - Manual (Page 70)

B.3.2 PROCEDURE #2 - USING THE EPM PROGRAMMER
1 . Remove power from the drive .
2
Remove all control wiring from the terminal strip of the drive .
3 . Using the optional EPM Programmer, create a new data file and change
Parameter 79 to "02" for active-low (refer to the EPM Programmer manual for
more information) .
4 . Copy the new data file to the drive's EPM .
5 . Install the EPM back in the drive .
6 . Re-apply power to the drive .
7 . The setting of P79 should now indicate "02" for active-low .
NOTE
• The first time an EPM that has been configured with the EPM Programmer
is installed in a TCF drive, the assertion level will be changed to match
that of the EPM . However, if that EPM is then taken out of the first drive
and installed in other drives, it will not change the assertion level (the EPM
Programmer would have to be used again to re-program the EPM) .
• Unlike the first procedure (B .3 .1), the EPM Programmer can also be used
to change the assertion level back to active-high . Simply follow the same
procedure above, but set P79 to "01" . After following either one of the above
procedures, the digital inputs will be configured for active-low, and TB-4
will be at 0 VDC potential . The digital inputs will be at +12 VDC potential .
Pulling them low (to +2 VDC or less) will activate the input .
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