Commissioning; Safety Instructions; Applying Power; Local Control Panel Operation - Danfoss VLT AQUA FC 202 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. Close the 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 the terminals.
9. Confirm that the supply voltage matches the
voltage of the frequency converter and the
motor.

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.

MG20MB02

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
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 LCP Layout

The LCP is divided into 4 functional groups (see
Illustration 5.1).
Danfoss A/S © Rev. 05/2014 All rights reserved.
Ensure that all operator devices are in the OFF
position. Panel doors must be closed and covers
securely fastened.
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.
Programming frequency converter functions.
Manually reset the frequency converter after a
fault when auto-reset is inactive.
A. Display area
B. Display menu keys
C. Navigation keys and indicator lights (LEDs)
D. Operation keys and reset
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