5 Commissioning
5.1 Safety Instructions
See
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
Ω
values on U–V (96–97), V–W (97–98), and W–U
(98–96).
7.
Check for proper grounding of the frequency
converter and 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.
3.
Ensure that all operator devices are in the OFF
position. Panel doors must be closed and covers
securely fastened.
4.
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.
5.3 Hand On/Auto On Mode
After installation, there are 2 simple ways to start up the
frequency converter:
•
Hand-on mode
•
Auto-on mode
At the first power-up, it is in auto-on mode.
130BD062.10
D
Hand
On
Reset
Auto
On
OK
On
Warn
Alarm
Illustration 5.1 Location of Hand On, Off/Reset, and Auto On
Keys on the NLCP
•
Press [Hand On] to provide a local start command
to the frequency converter. Press [
▲
] and [
▼
] to
increase and decrease speed.
•
Press [Off/Reset] to stop the frequency converter.
•
Press [Auto On] to control the frequency
converter either via control terminals or bus
communication.
CAUTION
Since the frequency converter is in auto-on mode at the
first power-up, the frequency converter may start the
motor directly when the start command is valid via
terminals or bus.
NOTICE
Parameter 5-12 Terminal 27 Digital Input
has coast inverse
as default setting. Connect terminals 12 and 27 to test
Hand On/Auto On running.
Commissioning
Quick Guide
MG06A702
Danfoss A/S © 03/2017 All rights reserved.
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