Danfoss AKD 5001 Manual page 80

Akd 5000 series, electronic controls, refrigeration and air conditioning controls, adap-kool refrigeration control systems
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If speed up/down is used, the speed change always
follows ramp 2 (depends on unit) in the range 0 - Ref
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
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
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).
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.50.R3.02 -
.
MAX
Example:
No speed change
Speed down
Speed up
Speed down
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
.
MIN
with the below verification table:
Setup 1
Setup 2
.
MIN
Setup 3
Setup 4
No speed change
Speed down
Speed up
Speed down
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
AKD 5000
Terminal
(16)
0
0
1
1
Selection of Setup
(32)msb
(33)lsb
0
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
Freeze ref./
(17)
Freeze output
0
1
1
1
0
1
1
1
Freeze ref/
Freeze output
0
0
0
0
1
1
1
1
79

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