Lenze 7812 - Standstill Iridication; Identical Freguency Indication

ET4 6/fa checked: 19.04.8>t~/~14B 33.0831 GB
page: 8
5.8 Standstill indication
— The open collector transistor used tor
the standstill lndication function opens,
when, during the deceleration phase,
the pre—programmed frequency is reached.
The transistor remains open, until
the trequency f = 0Hz Is attained.
The minimum swltch-on tiine of the
transistor is lOOms.
‚max =5OmA
Umax =27V
5.9 ~Identical frecruency“ indication
‚max
Umax =27V
- The Open-Ccllector transistor
for the „frequency identical“
indication switches, when a programmed
freguency of the acceleration and
deceleration phase is reached.
The transistor is eriabled, until
the rotational field freguency is
identical with the compared treguericy
or the acceleration/deceleration
phase is not yet finished. The
minimum switching tlme of the
transistor Is lOOms.
(The signal can be used e.g. tor
switching ot the aoceleratlon/
deceleration ramp).
Compared frequency
- re. uer~cy
a~reemer~1
s~ ing
1 \ §S
1 .—
SAR O~ O~. O~ 0 ON O.~
tOO.~c ~O0~‘mc
SST
-= lOOms
< lOOms t
3 > lOOms
~m~ 1OOfV~sec