Trane VarioTrane TR1 2800 Series, Руководство по эксплуатации

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percentage 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 op-
erate 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 re-
peated.
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/feed-
back corresponds to parameter 205 Maximum refer-
ence 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
frequency converter to reset and the motor will ramp
up to the preset reference.
Pulse counter start is used to start a counter stop se-
quence with a pulse signal. The pulse width must at
least be 14 ms and not longer than the count period.
See also parameter 343 and the instruction,
MI28CXYY.
TR1 2800 Series VFD 41
Programming