Commissioning; Safety Instructions; Applying Power; Local Control Panel Operation - Danfoss VLT AutomationDrive FC 301 Operating Instructions Manual

Commissioning

5 Commissioning

5.1 Safety Instructions

See 2 Safety for general safety instructions.
WARNING
HIGH VOLTAGE!
Frequency converters contain high voltage when
connected to AC mains input power. Installation, start-
up, and maintenance must be performed by qualified
personnel only. Failure to perform installation, start-up,
and maintenance by qualified personnel could result in
death or serious injury.
Before applying power:
1. Close cover properly.
2. Check that all cable glands are firmly tightened.
3. Ensure that input power to the unit is OFF and
locked out. Do not rely on the frequency
converter disconnect switches for input power
isolation.
4. Verify that there is no voltage on input terminals
L1 (91), L2 (92), and L3 (93), phase-to-phase and
phase-to-ground.
5. Verify that there is no voltage on output
terminals 96 (U), 97 (V), and 98 (W), phase-to-
phase and phase-to-ground.
6. Confirm continuity of the motor by measuring
ohm values on U-V (96-97), V-W (97-98), and W-U
(98-96).
7. Check for proper grounding of the frequency
converter as well as the motor.
8. Inspect the frequency converter for loose
connections on terminals.
9. Confirm that the supply voltage matches voltage
of frequency converter and motor.

5.2 Applying Power

WARNING
UNINTENDED START!
When the frequency converter is connected to AC mains,
the motor may start at any time. The frequency
converter, motor, and any driven equipment must be in
operational readiness. Failure to be in operational
readiness when the frequency converter is connected to
AC mains could result in death, serious injury, equipment
or property damage.
®
VLT AutomationDrive FC 301/302 Operating Instructions
1.
2.
3.
4.
NOTICE
If the status line at the bottom of the LCP reads AUTO
REMOTE COASTING or Alarm 60 External Interlock is
displayed, this indicates that the unit is ready to operate
but is missing an input signal on terminal 27. See
4.8.3 Enabling Motor Operation (Terminal 27) for details.

5.3 Local Control Panel Operation

5.3.1 Local Control Panel
The local control panel (LCP) is the combined display and
keypad on the front of the unit.
The LCP has several user functions:
•
•
•
•
An optional numeric LCP (NLCP) is also available. The NLCP
operates in a manner similar to the LCP. See the
Programming Guide for details on use of the NLCP.
NOTICE
For commissioning via PC, install MCT 10 Set-up
Software. The software is available for download at
www.danfoss.com/BusinessAreas/DrivesSolutions/Software-
download (basic version) or for ordering (advanced
version, order number 130B1000).
MG33AN02 - Rev. 2013-09-06
Confirm that the input voltage is balanced within
3%. If not, correct input voltage imbalance before
proceeding. Repeat this procedure after the
voltage correction.
Ensure that optional equipment wiring, if present,
matches the installation application.
Ensure that all operator devices are in the OFF
position. Panel doors must be closed or cover
mounted.
Apply power to the unit. DO NOT start the
frequency converter at this time. For units with a
disconnect switch, turn to the ON position to
apply power to the frequency converter.
Start, stop, and control speed when in local
control
Display operational data, status, warnings and
cautions
Programming frequency converter functions
Manually reset the frequency converter after a
fault when auto-reset is inactive
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