Maintenance, Diagnostics And Troubleshooting; Maintenance And Service; Status Messages - Danfoss VLT Refrigeration Drive FC 103 Operating Instructions Manual

Maintenance, Diagnostics an...

7 Maintenance, Diagnostics and Troubleshooting

This chapter includes maintenance and service guidelines,
status messages, warnings and alarms and basic trouble-
shooting.

7.1 Maintenance and Service

Under normal operating conditions and load profiles, the
frequency converter is maintenance-free throughout its
designed lifetime. To prevent breakdown, danger, and
damage, examine the frequency converter at regular
intervals depending on the operating conditions. Replace
worn or damaged parts with original spare parts or
standard parts. For service and support, refer to
www.danfoss.com/contact/sales_and_services/.
WARNING
7 7
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.

7.2 Status Messages

When the frequency converter is in status mode, status
messages are generated automatically and appear in the
bottom line of the display (see Illustration 7.1).
1 Operation mode (see Table 7.1)
2 Reference site (see Table 7.2)
3 Operation status (see Table 7.3)
Illustration 7.1 Status Display
Table 7.1 to Table 7.3 describe the displayed status
messages.
32
Operating Instructions
Status
799RPM 7.83A
0.000
53.2%
Auto Remote Ramping
Hand Local
Stop
O Running
Jogging
.
.
.
Stand by
1 2 3
Danfoss A/S © Rev. 2014-02-06 All rights reserved.
Off
Auto On
Hand On
Table 7.1 Operation Mode
Remote
Local
Table 7.2 Reference Site
AC Brake
AMA finish OK
AMA ready
AMA running
Coast
1(1)
36.4kW
Ctrl. Ramp-down Control Ramp-down was selected in
Current High
Current Low
DC Hold
The frequency converter does not react to any
control signal until [Auto On] or [Hand On] is
pressed.
The frequency converter is controlled from the
control terminals and/or the serial communi-
cation.
The frequency converter is controlled by the
navigation keys on the LCP. Stop commands,
reset, reversing, DC brake, and other signals
applied to the control terminals override local
control.
The speed reference is given from external
signals, serial communication, or internal
preset references.
The frequency converter uses [Hand On]
control or reference values from the LCP.
AC Brake was selected in 2-10 Brake Function.
The AC brake over-magnetises the motor to
achieve a controlled slow-down.
Automatic motor adaptation (AMA) was
carried out successfully.
AMA is ready to start. Press [Hand On] to start.
AMA process is in progress.
•
Coast inverse was selected as a function
for a digital input (parameter group 5-1*
Digital Inputs). The corresponding terminal
is not connected.
•
Coast activated by serial communication
14-10 Mains Failure.
•
The mains voltage is below the value set
in 14-11 Mains Voltage at Mains Fault at
mains fault
•
The frequency converter ramps down the
motor using a controlled ramp down
The frequency converter output current is
above the limit set in 4-51 Warning Current
High.
The frequency converter output current is
below the limit set in 4-52 Warning Speed Low
DC hold is selected in 1-80 Function at Stop
and a stop command is active. The motor is
held by a DC current set in 2-00 DC Hold/
Preheat Current.
MG16E302