Trane TR200 - Page 92

(Default Digital input 19).
[11] Start reversing Used for start/stop and for reversing on the same wire. Signals on start
are not allowed at the same time.
[14] Jog Used for activating jog speed. See par.3-11
Jog Speed [Hz].
(Default Digital input 29)
[15] Preset reference on Used for shifting between external reference and preset reference. It is
assumed that
External/preset [1] has been selected in par.3-04 Reference
Function. Logic '0' = external reference active; logic '1' = one of the eight
preset references is active.
[16] Preset ref bit 0 Enables a choice between one of the eight preset references according
to the table below.
[17] Preset ref bit 1 Enables a choice between one of the eight preset references according
to the table below.
[18] Preset ref bit 2 Enables a choice between one of the eight preset references according
to the table below.
Preset ref. bit
2 1 0
Preset ref. 0 0 0 0
Preset ref. 1 0 0 1
Preset ref. 2 0 1 0
Preset ref. 3 0 1 1
Preset ref. 4 1 0 0
Preset ref. 5 1 0 1
Preset ref. 6 1 1 0
Preset ref. 7 1 1 1
[19] Freeze ref Freezes actual reference. The frozen reference is now the point of enable/
condition for Speed up and Slow to be used. If Speed up/down is used,
the speed change always follows ramp 2 (par.3-51
Ramp 2 Ramp-up
Time and par.3-52 Ramp 2 Ramp-down Time) in the range 0 - par.
3-03
Maximum Reference. (For closed-loop, see par.20-14 Maximum
Reference/Feedb.).
[20] Freeze output Freezes actual motor frequency (Hz). The frozen motor frequency is now
the point of enable/condition for Speed up and Slow to be used. If Speed
up/down is used, the speed change always follows ramp 2 (par.
3-51
Ramp 2 Ramp-up Time and par.3-52 Ramp 2 Ramp-down Time) in
the range 0 - par.1-23
Motor Frequency.
WARNING
When Freeze output is active, the adjustable frequency drive cannot be stop-
ped via a low ‘start [13]
’ signal. Stop the adjustable frequency drive via a
terminal programmed for Coasting inverse [2] or Co
ast and reset, inverse [3].
[21] Speed up For digital control of the up/down speed is desired (motor potentiome-
ter). Activate this function by selecting either Freeze reference or Freeze
output. When Speed up is activated for less than 400 msec., the resulting
reference will be increased by 0.1%. If Speed up is activated for more
than 400 msec., the resulting reference will ramp according to Ramp 1
in par.3-41
Ramp 1 Ramp-up Time.
[22] Slow Same as Speed up [21].
Parameter Description
TR200 Programming Guide 4-55