4.2 Applying Power
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains.
•
Only qualified personnel should perform instal-
lation, start-up and maintenance.
Failure to comply could result in death or serious injury.
WARNING
UNINTENDED START
When the frequency converter is connected to AC mains,
the motor may start at any time.
•
Ensure that the frequency converter, motor, and
any driven equipment are in operational
readiness.
Failure to comply 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 should 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 display 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.
4.3 Basic Operational Programming
4.3.1 Set-up Wizard
NOTICE
RISK OF EQUIPMENT DAMAGE
Always stop the frequency converter before using the
wizard. Failure to stop the frequency converter may
cause equipment damage.
The built-in
wizard
menu guides the installer through the
set-up of the frequency converter in a clear and structured
manner, and has been constructed with reference to the
industries refrigeration engineers, to ensure that the text
and language is known within that specific business area.
At start-up, the FC 103 asks the user to run the VLT
®
Drive
Application Guide or to skip it (until it has been run, the
FC 103 asks every time at start-up), thereafter in the event
of power failure, the application guide is accessed via the
Quick Menu screen.
If [Cancel] is pressed, the FC 103 returns to the status
screen. An automatic timer cancels the wizard after 5 min.
of inactivity (no keys pressed). The wizard must be re-
entered via the Quick Menu when it has been run once.
Answering the questions on the screens takes the user
though a complete set-up for the FC 103. Most standard
refrigeration applications can be set up by using this
application guide. Access advanced features via the menu
structure (Quick Menu or Main Menu) in the frequency
converter.
The FC 103 Wizard covers all standard settings for:
•
Compressors
•
Single fan and pump
•
Condenser fans
These applications are then further expanded to allow
control of the frequency converter via its own internal PID
controllers or from an external control signal.
After completing set-up, re-run the wizard or start the
application
The application guide can be cancelled at any time by
pressing [Back]. The application guide can be re-entered
via the Quick Menu. When re-entering the application
guide, either keep previous changes to the factory set-up
or restore default values.
On power-up, the FC 103 launches an application guide. In
the event of power failure, the application guide is
accessed via the Quick Menu screen.
130BC951.10
Illustration 4.1 Quick Menu Screen
If [Cancel] is pressed, the FC 103 returns to the status
screen. An automatic timer cancels the wizard after 5 min.
of inactivity (no keys pressed). Re-enter the wizard via the
Quick Menu as described in this section.
Start-up and Functional Tes...
Operating Instructions
56
Danfoss A/S © Rev. 05/2014 All rights reserved.
MG16J202
4
4
Summary of Contents for VLT FC 103
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