AKD 5000
Programming
If speed up/down is used, the speed change always
follows ramp 2 (depends on unit) in the range 0 - Ref
MAX
.
Freeze output
- freezes the 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 (parameters 209/210)
in the range 0 - f
M,N
.
NB!:
If
Freeze output
is active, the frequency
converter cannot be stopped via terminals
18 and 19, but only via terminal 27 (to
be programmed for
Coasting stop, inverse
[0] or
Reset and coasting stop, inverse
[1]).
After
Freeze output
, the PID integrators are reset.
Speed up and Speed down
are selected if digital
control of the up/down speed is desired (motor
potentiometer). This function is only active if
Freeze
reference
or
Freeze output
has been selected. As long
as there is a logic ‘1‘ on the terminal selected for speed
up, the reference or the output frequency will increase.
Follow ramp 2 (depends on unit) in the range 0 - f
MIN
.
As long as there is a logic ‘1‘ on the terminal
selected for speed down, the reference or the
output frequency will be reduced. Follow ramp 2
(depends on unit) in the range 0 - f
MIN
.
Pulses (logic ‘1‘ minimum high for 3 ms and a minimum
pause of 3 ms) will lead to a change of speed of 0.1%
(reference) or 0.1 Hz (output frequency).
Example:
Terminal
Freeze ref./
(16)
(17)
Freeze output
No speed change
0
0
1
Speed down
0
1
1
Speed up
1
0
1
Speed down
1
1
1
The speed reference frozen via the control panel
can be changed even if the frequency converter has
stopped. The frozen reference will be remembered
in case of a mains drop-out.
Selection of Setup, lsb and Selection of Setup,
msb
enables a choice of one of the four Setups;
however, this presupposes that parameter 004
has been set at
Multi Setup
.
Selection of Setup, msb/Speed up and Selection
of Setup, lsb/Speed down
- together with
the use of
Freeze reference
or
Freeze output
-
enable up/down speed change.
The selection of Setup occurs in accordance
with the below verification table:
Selection of Setup
Freeze ref/
(32)msb
(33)lsb
Freeze output
Setup 1
0
0
0
Setup 2
0
1
0
Setup 3
1
0
0
Setup 4
1
1
0
No speed change
0
0
1
Speed down
0
1
1
Speed up
1
0
1
Speed down
1
1
1
Catch-up/Slow-down:
Not used in AKD.
Ramp 2
is selected if a change between ramp
1 (parameters 207-208) and ramp 2 (depends
on unit) is desired. Logic
’
0
’
leads to ramp 1,
while logic
’
1
’
leads to ramp 2.
Mains failure inverted:
Not used in AKD.
Pulse reference:
Not used in AKD.
Pulse feedback:
Not used in AKD.
Select Encoder feedback, input A:
Not used in AKD.
Select Encoder feedback, input B:
Not used in AKD.
Safety interlock
has the same function as
Coasting
stop, inverse,
but
Safety interlock
generates the alarm
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.50.R3.02 -
79
