Danfoss VLT AQUA Programming Manual page 79

®
VLT AQUA Drive Programming Guide
[7]
[8]
[9]
[10]
[11]
[14]
[15]
[16]
[17]
[18]
External Interlock Same function as Coasting stop, inverse, but External Interlock
generates the alarm message 'external fault' on the display
when the terminal which is programmed for Coast Inverse is
logic '0'. The alarm message will also be active via digital outputs
and relay outputs, if programmed for External Interlock. The
alarm can be reset using a digital input or the [RESET] key if the
cause for the External Interlock has been removed. A delay can
be programmed in par. 22-00, External Interlock Time. After
applying a signal to the input, the reaction described above will
be delayed with the time set in par. 22-00.
Start Select start for a start/stop command. Logic '1' = start, logic '0'
= stop.
(Default Digital input 18)
Latched start Motor starts, if a pulse is applied for min. 2 ms. Motor stops
when Stop inverse is activated
Reversing Changes direction of motor shaft rotation. Select Logic '1' to re-
verse. The reversing signal only changes the direction of rota-
tion. It does not activate the start function. Select both
directions in par. 4-10
(Default Digital input 19).
Start reversing Used for start/stop and for reversing on the same wire. Signals
on start are not allowed at the same time.
Jog Used for activating jog speed. See par. 3-11.
(Default Digital input 29)
Preset reference on Used for shifting between external reference and preset refer-
ence. It is assumed that
in par. 3-04. Logic '0' = external reference active; logic '1' = one
of the eight preset references is active.
Preset ref bit 0 Enables a choice between one of the eight preset references
according to the table below.
Preset ref bit 1 Enables a choice between one of the eight preset references
according to the table below.
Preset ref bit 2 Enables a choice between one of the eight preset references
according to the table below.
®
MG.20.O2.02 - VLT is a registered Danfoss trademark
2. Parameter Description
NB!
When the frequency converter is at the torque
limit and has received a stop command, it may not
stop by itself. To ensure that the frequency con-
verter stops, configure a digital output to
limit & stop
[27] and connect this digital output to
a digital input that is configured as coast.
Motor Speed Direction
External/preset
[1] has been selected
Torque
.
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