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VLT
®
6000 HVAC
20
MG.60.G2.02 - VLT is a registered Danfoss Trademark
Startup of FLN Control
This procedure assumes that the VLT 6000
frequency converter has been installed properly and
is operational in Hand control mode. It also assumes
the Siemens FLN data bus is connected to an
operational controller.
Start the VLT 6000 in accordance with the following
procedure.
1.
Ensure that the assumptions in this procedure
are correct.
2.
Check that the network connections are
securely fastened in accordance with Figure 2.
Verify compliance with all safety require-
ments listed in this manual.
3.
Apply power to the VLT 6000.
4.
Ensure that the minimum settings listed in
Table 6 are selected.
5.
Ensure that the switch positions in Figure 3
are set correctly.
6.
Optional settings may be changed to meet or
enhance the drive’s operation, depending on
the application requirements.
7.
For FLN control of the drive, press the AUTO
START key on the VLT 6000 LCP keypad.
Drive operation can then be controlled through
the host network device in accordance with
its operation instructions.
NOTE:
NOTE:
NOTE:
NOTE:
NOTE:
Default setting for point number 35,
Run
Enable
, is OFF. Drive will not operate until
Run Enable
ON signal is given through serial
communication network.
Faults, Warnings and Alarms
DANGER:
A stopped motor may start unexpectedly
if faults occur in electronics of drive, or if
an active fault clears, such as a fault in supply AC
line, or fault in motor connection, or overload.
The VLT 6000 frequency converter outputs faults,
warnings and alarms on the FLN serial bus in a
numerical code. The code numbers are described in
Table 7. The Reset key is used for manually
resetting the drive after an alarm (fault trip). In this
case, the top line of the display will show TRIP
(RESET). If the top line of the display shows TRIP
(AUTO START), the drive will automatically restart. If
the top line of the display shows TRIPLOCK (DISC.
MAINS), input power to the drive must be cycled off
and on again before the trip can be reset.
Refer to the
VLT 6000 Operating Instructions
for
detailed descriptions.