Danfoss VLT HVAC Operating Instructions Manual page 74

6. How to programme the frequency converter
Cascade Pump1
Cascade Pump2
Cascade Pump3
Fire Mode Active
Fire Mode Coast
Fire Mode Was Active
Alarm, Trip Locked
Bypass Mode Active
Function:
Select options to define the function of the re-
lays.
The selection of each mechanical relay is re-
alised in an array parameter.
6
6-00
Value:
1 - 99 s
Function:
Enter the Live Zero Time-out time period. Live
Zero Time-out Time is active for analog in-
puts, i.e. terminal 53 or terminal 54, allocated
to current and used as reference or feedback
sources. If the reference signal value associ-
ated with the selected current input falls be-
low 50% of the value set in par. 6-10, par.
6-12, par. 6-20 or par. 6-22 for a time period
longer than the time set in par. 6-00, the func-
tion selected in par. 6-01 will be activated.
6-01
Value:
Off
Freeze output
Stop
Jogging
Max. speed
Stop and trip
Function:
Select the time-out function. The function set
in par. 6-01 will be activated if the input signal
on terminal 53 or 54 is below 50% of the value
in par. 6-10, par. 6-12, par. 6-20 or par. 6-22
for a time period defined in par. 6-00. If sev-
eral time-outs occur simultaneously, the fre-
74
[211]
[212]
[213]
[220]
[221]
[222]
[223]
[224]
Live Zero Timeout Time
Live Zero Timeout Function
MG.11.A4.02 - 09.10.06. VLT
®
VLT
quency converter prioritises the time-out
functions as follows:
1. Par. 6-01
tion
2. Par. 8-04
Function
The output frequency of the frequency con-
verter can be:
• [1] frozen at the present value
• [2] overruled to stop
• [3] overruled to jog speed
• [4] overruled to max. speed
• [5] overruled to stop with subse-
quent trip
If you select set-up 1-4, par. 0-10,
up , must be set to Multi Set-up
This parameter cannot be adjusted while the
motor is running.
10s
6-10 Terminal 53 Low Voltage
[0]
Value:
[1]
0.00 - par. 6-11
[2]
Function:
Enter the low voltage value. This analog input
[3]
scaling value should correspond to the low
[4]
reference/feedback value set in par. 6-14.
[5]
6-11 Terminal 53 High Voltage
Value:
Par. 6-10 to 10.0 V
® is a registered Danfoss trademark
HVAC Drive Operating Instructions
Live Zero Time-out Func-
Control-word Time-out
Active Set-
, [9].
0.07V
10.0V