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Reference

. (For closed loop see

[20] Freeze output

Freezes actual motor frequency (Hz). The
frozen motor frequency is now the point of
enable/condition for Speed up and Speed
down to be used. If Speed up/down is used,
the speed change always follows ramp 2
(

3-51 Ramp 2 Ramp Up Time

and

) in the range 0 -

NOTE

When Freeze output is active, the
frequency converter cannot be stopped
via a low ‘start [13]’ signal. Stop the
frequency converter via a terminal
programmed for Coasting inverse [2] or
Coast and reset, inverse [3].

[21] Speed up

For digital control of the up/down speed is
desired (motor potentiometer). 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

3-41 Ramp 1 Ramp Up

Time

[22] Speed down

Same as Speed up [21].

[23] Set-up select

bit 0

Selects one of the four set-ups. Set par. 0-10
to Multi Set-up.

[24] Set-up select

bit 1

Same as Set-up select bit 0 [23].
(Default Digital input 32)

[32] Pulse input

Select Pulse input when using a pulse
sequence as either reference or feedback.
Scaling is done in parameter group 5-5*.

[34] Ramp bit 0

Select which ramp to use. Logic “0” will select
ramp 1 while logic “1” will select ramp 2.

[36] Mains failure

inverse

Select to activate function selected in

14-10 Mains Failure

. Mains failure is active in

the Logic “0” situation.

[37] Fire mode

A signal applied will put the frequency
converter into Fire Mode and all other
commands will be disregarded. See 24-0*

Fire Mode

[52] Run Permissive The input terminal, for which the Run

permissive has been programmed must be
logic “1” before a start command can be
accepted. Run permissive has a logic ‘AND’
function related to the terminal which is
programmed for

START

[8],

Jog

[14] or

Freeze

Output

[20], which means that in order to

start running the motor, both conditions
must be fulfilled. If Run Permissive is
programmed on multiple terminals, Run
permissive needs only be logic ‘1’ on one of
the terminals for the function to be carried
out. The digital output signal for Run

Request (

Start

[8],

Jog

[14] or

Freeze output

[20]) programmed in par. 5-3*, or par. 5-4*,
will not be affected by Run Permissive.

NOTE

If no Run Permissive signal is applied
but either Run, Jog or Freeze commands
is activated, the status line in the display
will show either Run Requested, Jog
Requested or Freeze Requested.

[53] Hand start

A signal applied will put the frequency
converter into Hand mode as if button

Hand

on the LCP has been pressed and a

normal stop command will be overridden. If
disconnecting the signal, the motor will stop.
To make any other start commands valid,
another digital input must be assign to

Auto

Start

and a signal applied to this. The

Hand

and

Auto On

buttons on the LCP has no

impact. The

Off

button on the LCP will

override

Hand Start