Commissioning; Safety Instructions; Applying Power; Local Control Panel Operation - Danfoss VLT AutomationDrive FC 302 Operating Instructions Manual

Commissioning

5 Commissioning

5.1 Safety Instructions

See chapter 2 Safety for general safety instructions.
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input power. Failure to perform
installation, start-up, and maintenance by qualified
personnel could result in death or serious injury.
•
Installation, start-up, and maintenance must be
performed by qualified personnel only.
Before applying power:
1. Verify that there is no voltage on input terminals
L1 (91), L2 (92), and L3 (93), phase-to-phase and
phase-to-ground.
2. Verify that there is no voltage on output
terminals 96 (U), 97 (V), and 98 (W), phase-to-
phase and phase-to-ground.
Confirm continuity of the motor by measuring Ω
3.
values on U-V (96-97), V-W (97-98), and W-U
(98-96).
4. Check for proper grounding of the frequency
converter as well as the motor.
5. Inspect the frequency converter for loose
connections on the terminals.
6. Check that all cable glands are firmly tightened.
7. 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.
8. Confirm that the supply voltage matches the
voltage of the frequency converter and the
motor.
9. Close the door properly.

5.2 Applying Power

Apply power to the frequency converter using the
following steps:
1. Confirm that the input voltage is balanced within
3%. If not, correct the input voltage imbalance
before proceeding. Repeat this procedure after
the voltage correction.
2. Ensure that any optional equipment wiring,
matches the installation application.
MG34U402
Operating Instructions
3.
4.

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 product
relevant programming guide for details on use of the NLCP.
NOTICE
For commissioning via PC, install the MCT 10 Set-up
Software. The software is available for download (basic
version) or for ordering (advanced version, order number
130B1000). For more information and downloads, see
www.danfoss.com/BusinessAreas/DrivesSolutions/Software
+MCT10/MCT10+Downloads.htm.
5.3.2 Start-up Message
NOTICE
During start-up, the LCP displays the message
INITIALISING. When this message is no longer displayed,
then the frequency converter is ready for operation.
Adding or removing options can extend the duration of
start-up.
Danfoss A/S © 06/2015 All rights reserved.
Ensure that all operator devices are in the OFF
position. Close all panel doors and fasten covers
securely.
Apply power to the unit. DO NOT start the
frequency converter now. For units with a
disconnect switch, turn it 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.
Programme frequency converter functions.
Manually reset the frequency converter after a
fault when auto-reset is inactive.
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