Danfoss VLT FCD 303 Operating Instructions Manual page 61

The delta frequency can be controlled by the analog
input. If WOBB.DELTA FREQ is selected as analog
input (par. 308 or par. 314) the value selected in
par. 702 equals 100 % analog input.
Example: Analog input = 4-20 mA, Delta freq. par.
702 = 5 Hz → 4 mA = 0 Hz and 20 mA = 5 Hz.
If this function is chosen, see Wobble Instruction
MI28JXYY for further information.
315 Terminal 60 Min. scaling
(AI 60 SCALE LOW)
Value:
0.0 - 20.0 mA
Function:
In this parameter you can set the signal value that will
correspond to the minimum reference or minimum
feedback, parameter 204 Minimum reference,
Ref / 414 Minimum feedback, FB
MIN
Description of choice:
Set the required current value. If the Time out
function is to be used (parameter 317 Time
out and 318 Function after time out ) the value
set must be higher than 2 mA.
316 Terminal 60 Max. scaling
(AI 60 SCALE HIGH)
Value:
0.0 - 20.0 mA
Function:
This parameter is used for setting the signal value that
is to correspond to the maximum reference value,
parameter 205 Maximum reference value, Ref
Description of choice:
Set the required current value.
317 Time out
(LIVE ZERO TIME O)
Value:
1 - 99 sec.
Function:
If the signal value of the reference or feedback signal
connected to one of the input terminals 53 or 60 falls
below 50 % of the minimum scaling for a period longer
than the time set, the function selected in parameter
318 Function after time out will be acti v ated. This
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.04.B7.02 - VLT is a registered Danfoss trademark
function is only acti v e if in parameter 309 Terminal
53, min. scaling a value higher than 1 Volt has been
selected, or if in parameter 315 Terminal 60, min.
scaling a value higher than 2 mA has been selected.
Description of choice:
Set the required time.
318
Value:
No operation (NO OPERATION)
Freeze output frequency
4.0 mA
(FREEZE OUTPUT FREQ.)
Stop (STOP)
Jog (JOG)
Max. speed (MAX SPEED)
Stop and trip (STOP AND TRIP)
.
MIN
Function:
This parameter allows a choice of the function to be
acti v ated after the expiry of the Time out (parameter
317 Time out ). If a time-out function occurs at the
same time as a bus time-out function (parameter 513
Bus time interval function ), the time-out function
in parameter 318 will be acti v ated.
Description of choice:
The output frequency of the frequency converter can be:
- frozen at the present frequency [1]
- overruled to stop [2]
- overruled to jog frequency [3]
20.0 mA
- overruled to max. output frequency [4]
- overruled to stop with subsequent trip [5]
.
MAX
319 Analogue output terminal 42
Value:
No function (NO OPERATION)
External reference min.-max. 0-20 mA
(REF MIN-MAX = 0-20 MA)
External reference min.-max. 4-20 mA
(REF MIN-MAX = 4-20 MA)
Feedback min.-max. 0-20 mA
10 sec.
(FB MIN-MAX = 0-20 MA)
Feedback min.-max. 4-20 mA
(FB MIN-MAX = 4-20 MA)
Output frequency 0-max 0-20 mA
(0-FMAX = 0-20 MA)
Output frequency 0-max 4-20 mA
(0-FMAX = 4-20 MA)
®
VLT FCD Series
Function after time out
(LIVE ZERO FUNCT.)
(AO 42 FUNCTION)
[0]
[1]
[2]
[3]
[4]
[5]
[0]
[1]
[2]
[3]
[4]
[5]
[6]
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