Analogue Output - Danfoss VLT 2800 Series Operating Instructions Manual

Description of choice:
No function [0]. Is selected if the frequency converter
is not to react to signals connected to the terminal.
Reference [1]. If this function is selected, the refer-
ence can be changed by means of an analogue
reference signal. If reference signals are connected
to more than one input, these reference signals must
be added up.
If one current feedback signal is connected, select
Feedback [2] on terminal 60.
315 Terminal 60 Min. scaling
315
(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 mini-
mum feedback, parameter 204 Minimum reference,
Ref / 414 Minimum feedback, FB
MIN
Description of choice:
Set the required current value. If the Time out func-
tion 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
316
(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 .
MAX
Description of choice:
Set the required current value.
317 Time out
317
(LIVE ZERO TIME O)
Value:
1 - 99 sec.
Function:
If the signal value of the reference or feedback sig-
nal connected to one of the input terminals 53 or 60
falls below 50 % of the minimum scaling for a period
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A5.02 - VLT is a registered Danfoss trade mark
VLT
longer than the time set, the function selected in pa-
rameter 318 Function after time out will be activated.
This function is only active if in parameter 309 Termi-
nal 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 se-
lected.
Description of choice:
Set the required time.
318
318
Value:
No operation ( NO OPERA TION)
0.0 mA
Freeze output frequency ( 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
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]
20.0 mA
- 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
319
Value:
No function (NO OPERA TION)
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)
10 sec. Feedback min.-max. 0-20 mA
(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)
®
2800 Series
Function after time out
(LIVE ZERO FUNCT.)
(AO 42 FUNCTION)
[0]
[1]
[2]
[3]
[4]
[5]
[0]
[1]
[2]
[3]
[4]
[5]
35