VLT
®
FCD Series
Programming, FCD
300
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
✭
4.0 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
MIN
/ 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
✭
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
MAX
.
Description of choice:
Set the required current value.
317 Time out
(LIVE ZERO TIME O)
Value:
1 - 99 sec.
✭
10 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 activated. This
function is only active 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
Function after time out
(LIVE ZERO FUNCT.)
Value:
✭
No operation (NO OPERATION)
[0]
Freeze output frequency
(FREEZE OUTPUT FREQ.)
[1]
Stop (STOP)
[2]
Jog (JOG)
[3]
Max. speed (MAX SPEED)
[4]
Stop and trip (STOP AND TRIP)
[5]
Function:
This parameter allows a choice of the function to be
activated 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 activated.
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]
-
overruled to max. output frequency [4]
-
overruled to stop with subsequent trip [5]
319 Analogue output terminal 42
(AO 42 FUNCTION)
Value:
No function (NO OPERATION)
[0]
External reference min.-max. 0-20 mA
(REF MIN-MAX = 0-20 MA)
[1]
External reference min.-max. 4-20 mA
(REF MIN-MAX = 4-20 MA)
[2]
Feedback min.-max. 0-20 mA
(FB MIN-MAX = 0-20 MA)
[3]
Feedback min.-max. 4-20 mA
(FB MIN-MAX = 4-20 MA)
[4]
Output frequency 0-max 0-20 mA
(0-FMAX = 0-20 MA)
[5]
Output frequency 0-max 4-20 mA
(0-FMAX = 4-20 MA)
[6]
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.04.B7.02 - VLT is a registered Danfoss trademark
61
