40
MG.60.N1.22
- VLT is a registered Danfoss trademark
VLT
®
5000 / VLT
®
6000
HVAC / VLT
®
8000 AQUA
804
804
804
804
804
T
T
T
T
Time out function
ime out function
ime out function
ime out function
ime out function
Selection:
★
Off
(NO FUNCTION)
[0]
Freeze output frequency
(FREEZE OUTPUT FREQ.)
[1]
Stop with auto restart
(STOP)
[2]
Output frequency = JOG freq.
(JOGGING)
[3]
Output frequency = Max. freq.
(MAX SPEED)
[4]
Stop with trip
(STOP AND TRIP)
[5]
Control without DeviceNet
(NO COM OPT CONTROL)
[6]
Select set-up 4
(SELECT SET UP 4)
[7]
Function:
The time out timer is triggered at the first
reception of a valid control word, i.e.,
bit 10 = ok.
The time out function can be activated in two
different ways:
1. The drive does not receive a
LonWorks command addressed to it
within the specified time.
2. Parameter 805 is set to “bit 10 = 0
time out” and a control word with “bit
10 = 0” is sent to the drive.
The VLT remains in the time out state until
one of the following four conditions is true:
1. A valid control word (Bit 10 = ok) is
received and the drive is reset
through the bus, the digital input
terminals or the local control panel.
(Reset is only necessary when the
time out function
Stop w/trip
is
selected.) Control via LonWorks is
resumed using the received control
word.
2. Local control via the local control
panel is enabled.
3. Parameter 928,
Access to process
control
, is set to
Disabled
.
Normal control via the digital input
terminals and the RS-485 interface is
now enabled.
★
Factory setting
4. Parameter 804,
Bus time out function
,
is set to
Off.
Control via LonWorks is resumed and
the most recent control word is used.
Description of Selections:
•
Freeze output frequency
. Maintain
present output frequency until
communication is resumed.
•
Stop with auto restart
. Stop and
automatically restart when
communication is resumed.
•
Output frequency = JOG freq
. Drive
will produce JOG frequency set in
parameter 209 (213),
Jog frequency
,
until communication is resumed.
•
Output frequency = Max. freq
. Drive
will produce maximum output
frequency (set in parameter 202,
Output frequency
) until
communication is resumed.
•
Stop with trip.
Drive stops and
requires a reset command before it
will restart.
•
Control without LonWorks
. Control via
LonWorks is disabled. Control is
possible via digital input terminals
and/or standard RS-485 interface
until LonWorks communication is
resumed.
•
Select setup 4
. Setup 4 is selected in
parameter 002 (004),
Active setup
,
and settings of setup 4 are used.
Parameter 002 (004) is not reset to
the original value when
communication is resumed.
VLT 5000 parameters are shown in parenthesis, where applicable.
