Danfoss 102 Instrucciones de operaciones descargar pdf (Pagina 23)

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.

1. Confirm that the input voltage is balanced within

3%. If not, correct input voltage imbalance before

proceeding. Repeat this procedure after the

voltage correction.

2. Ensure that optional equipment wiring, if present,

matches the installation application.

3. Ensure that all operator devices are in the OFF

position. Panel doors must be closed or cover

mounted.

4. 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.

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:

•

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

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 downloading at

www.danfoss.com/BusinessAreas/DrivesSolutions/software-

download (basic version) or for ordering (advanced

version, order number 130B1000).

Commissioning

VLT

HVAC Drive Operating Instructions

MG11AJ02 - Rev. 2013-07-31 21

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Danfoss 102 Instrucciones de operaciones Pagina 23

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