Danfoss VLT HVAC Drive FC 102, Руководство по программированию, Страница: 73 / 250

closed loop, see parameter 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 Speed
down to be used. If speed up/down is used,
the speed change always follows ramp 2
(
parameter 3-51 Ramp 2 Ramp Up Time and
parameter 3-52 Ramp 2 Ramp Down Time ) in
the range 0 – parameter 1-23 Motor
Frequency .
NOTICE
When Freeze output is active, the
frequency converter cannot be
stopped via a low
[13] start signal.
Stop the frequency converter via a
terminal programmed for
[2] Coasting
inverse or [3] Coast and reset, inverse .
[21] Speed up Select [21] Speed up and [22] Speed down if
digital control of the up/down speed is
desired (motor potentiometer). Activate this
function by selecting either
[19] Freeze ref or
[20] Freeze output . When speed up/down is
activated for less than 400 ms, the resulting
reference is increased/decreased by 0.1%. If
speed up/down is activated for more than
400 ms, the resulting reference follows the
setting in ramping up/down parameter 3-
x1/3-x2.
[22] Speed down Same as [21] Speed up .
[23] Set-up select
bit 0
Selects one of the 4 set-ups. Set par. 0-10 to
[9] Multi Set-up .
[24] Set-up select
bit 1
Same as [23] Set-up select bit 0 .
[32] Pulse input Select [32] 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 selects
ramp 1, while logic 1 selects ramp 2.
[36] Mains failure
inverse
Activates the function selected in
parameter 14-10 Mains Failure . Mains failure
is active in the logic 0 situation.
[37] Fire mode A signal applied puts the frequency
converter into Fire mode and all other
commands are 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
[8] Start , [14] Jog or [20]
Freeze Output . To start running the motor,
both conditions must be fulfilled. If Run
Permissive is programmed on multiple
terminals,
[52] Run permissive needs only be
logic 1 on 1 of the terminals to carry out the
function. The digital output signal for Run
Request (
[8] Start , [14] Jog or [20] Freeze
output ) programmed in parameter group
5-3* Digital Outputs , or parameter group 5-4*
Relays , is not affected by run permissive.
NOTICE
If no run permissive signal is applied,
but either Run, Jog or Freeze
commands are activated, the status
line in the display shows either Run
Requested, Jog Requested, or Freeze
Requested.
[53] Hand start A signal applied puts the frequency
converter into
Hand mode as if [ Hand On ]
was pressed on the LCP has been pressed
and a normal stop command is overridden.
If disconnecting the signal, the motor stops.
To make any other start commands valid,
another digital input must be assigned to
[54] Auto Start and a signal applied to this.
The [ Hand On ] and [ Auto On ] keys on the
LCP have no impact. The [ Off ] key on the
LCP overrides [53] Hand Start and [54] Auto
Start . Press either [ Hand On ] or [ Auto On ] to
make [53] Hand Start and [54] Auto Start
active again. If no signal on neither [53]
Hand Start nor [54] Auto Start , the motor
stops regardless of any normal start
command applied. If signals are applied to
both
[53] Hand Start and [54] Auto Start , the
function is Auto Start . If pressing [Off] on the
LCP, the motor stops regardless of signals on
[53] Hand Start and [54] Auto Start .
[54] Auto start A signal applied puts the frequency
converter into
Auto mode as if [ Auto On ] has
been pressed. See also [53] Hand Start .
[55] DigiPot
Increase
Uses the input as an increase signal to the
digital potentiometer function described in
parameter group 3-9*.
[56] DigiPot
Decrease
Uses the input as a decrease signal to the
digital potentiometer function described in
parameter group 3-9*.
[57] DigiPot Clear Uses the input to clear the digital potenti-
ometer reference described in parameter
group 3-9*
[60] Counter A
(up)
(Terminal 29 or 33 only). Input for increment
counting in the SLC counter.
[61] Counter A
(down)
(Terminal 29 or 33 only). Input for
decrement counting in the SLC counter.
[62] Reset
Counter A
Input for reset of counter A.
[63] Counter B
(up)
(Terminal 29 and 33 only). Input for
increment counting in the SLC counter.
[64] Counter B
(down)
(Terminal 29 and 33 only). Input for
decrement counting in the SLC counter.
Parameter Descriptions Programming Guide
MG11CE02 Danfoss A/S © 03/2015 All rights reserved. 71
3 3