Danfoss VLT AQUA Drive FC 202 Installation Manual

7 Diagnostics and Troubleshooting
7.1 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 Figure 7.1). Refer to the
VLT
®
AQUA Drive FC 202 Programming Guide for detailed
descriptions of the displayed status messages.
Status
799RPM 7.83A 36.4kW
0.000
53.2%
1(1)
Auto
Hand
O
Remote
Local
Ramping
Stop
Running
Jogging
.
.
.
Stand by
130BB037.11
1 2 3
1 Operation mode
2 Reference site
3 Operation status
Figure 7.1 Status Display
7.2 Warning and Alarm Types
The adjustable frequency drive monitors the condition of
its input power, output, and motor factors as well as other
system performance indicators. A warning or alarm does
not necessarily indicate a problem internal to the
adjustable frequency drive itself. In many cases, it indicates
failure conditions from:
•
input voltage
•
motor load
•
motor temperature
•
external signals
•
other areas monitored by internal logic
Investigate as indicated in the alarm or warning.
7.2.1 Warnings
A warning is issued when an alarm condition is impending
or when an abnormal operating condition is present and
may result in the adjustable frequency drive issuing an
alarm. A warning clears by itself when the abnormal
condition is removed.
7.2.2 Alarm Trip
An alarm is issued when the frequency converter is
tripped, that is, the frequency converter suspends
operation to prevent frequency converter or system
damage. The motor coasts to a stop, if the alarm trip is on
the frequency converter side. The frequency converter
logic continues to operate and monitors the frequency
converter status. After the fault condition is remedied,
reset the frequency converter. It is then ready to restart
operation.
A trip can be reset in any of 4 ways:
•
Press [Reset] on the LCP.
•
Digital reset input command.
•
Serial communication reset input command.
•
Auto reset.
7.2.3 Alarm Trip-lock
An alarm that causes the frequency converter to trip-lock
requires that input power is cycled. If the alarm trip is on
the frequency converter side, the motor coasts to a stop.
The frequency converter logic continues to operate and
monitors the frequency converter status. Remove input
power to the frequency converter and correct the cause of
the fault, then restore power. This action puts the
frequency converter into a trip condition as described in
chapter 7.2.2 Alarm Trip and may be reset in any of the 4
ways.
7.3
Warnings and Alarm Denitions -
Adjustable Frequency Drive
The following warning/alarm information denes each
warning/alarm condition, provides the probable cause for
the condition, and details a remedy or troubleshooting
procedure.
Diagnostics and Troubleshoo... Installation Manual
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Danfoss VLT AQUA Drive FC 202 Specifications

General

Brand	Danfoss
Model	VLT AQUA Drive FC 202
Category	DC Drives
Language	English