Term
.29
Term.
33
Freeze ref/
freeze outp.
Function
0
0
1
No speed change
0
1
1
Speed up
1
0
1
Speed down
1
1
1
Speed down
Freeze reference
can be changed even if the frequency
converter has stopped. The reference will also be
saved if the mains are disconnected.
Catch-up/Slow-down
is selected if the reference value
is to be increased or reduced by a programmable per-
centage value set in parameter 219
Catch-up/Slow-
down reference
.
Slow-down Catch-up
Function
0
0
Unchanged speed
0
1
Increase by % value
1
0
Reduce by % value
1
1
Reduce by % value
Ramp 2
is selected if a shift between ramp 1 (param-
eters 207-208) and ramp 2 (parameters 209-210) is
required. Logic '0' leads to ramp 1 and logic '1' leads
to ramp 2.
Preset reference, lsb
and
Preset reference, msb
makes
it possible to select one of the four preset references,
see the table below:
Preset ref.
msb
Preset ref.
lsb
Function
0
0
Preset ref. 1
0
1
Preset ref. 2
1
0
Preset ref. 3
1
1
Preset ref. 4
Preset reference on
is used for shifting between re-
mote-controlled reference and preset reference. It is
assumed that External/preset [2] has been selected in
parameter 214
Reference function
. Logic '0' = remote-
controlled references are active, logic '1' = one of the
four preset references is active, as can be seen from
the table above.
Thermistor
is to be selected if a possibly integrated
thermistor in the motor is to be able to stop the fre-
quency converter if the motor overheats. The cut-out
value is 3 k
Ω
.
If a motor features a Klixon thermal switch instead, this
can also be connected to the input. If motors operate
in parallel, the thermistors/thermal switches can be
connected in series (total resistance lower than 3 k
Ω
).
Parameter 128
Motor thermal protection
must be pro-
grammed for
Thermistor warning
[1] or
Thermistor trip
[2] and the thermistor is to be connected between a
digital input and terminal 50 (+ 10 V supply).
Precise stop, inverse
is selected to obtain a high degree
of accuracy when a stop command is repeated. A logic
0 means that the motor speed is ramped down to stop
via the selected ramp.
Precise start/stop
is selected to obtain a high degree
of accuracy when a start and stop command is repea-
ted.
Pulse reference
is selected if the reference signal ap-
plied is a pulse train (frequency). 0 Hz corresponds to
parameter 204
Minimum reference, Ref
MIN
. The fre-
quency set in parameter 327
Pulse reference/feedback
corresponds to parameter 205
Maximum reference
Ref
MAX
.
Pulse feedback
is selected if the feedback signal used
is a pulse train (frequency). In parameter 327
Pulse
reference/feedback
the maximum pulse feedback fre-
quency is set.
Pulse input
is selected if a specific number of pulses
must lead to a
Precise stop
, see parameter 343
Precise
stop
and parameter 344
Counter value
.
Selection of Setup, lsb
and
Selection of Setup, msb
gives the possibility to select one of the four setups. It
is, however, a condition that parameter 004 is set to
Multisetup
.
Reset and start
can be used as a start function. If 24 V
are connected to the digital input, this will cause the
= factory setting, () = display text, [] = value for use in communication via serial communication port
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87
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ogr
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