Diagnostics And Troubleshooting; Maintenance And Service; Status Messages - Danfoss VLT AutomationDrive FC 301 Operating Instructions Manual

Diagnostics and Troubleshoo...

7 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/.
7 7
CAUTION
Danfoss AUTHORISED PERSONNEL!
Risk of personal injury or equipment damage. Repair and
service must be carried out by Danfoss authorised
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.)
Illustration 7.1 Status Display
1 Operation Mode (see Table 7.2)
2 Reference Site (see Table 7.3)
3 Operation Status (see Table 7.4)
Table 7.1 Legend to Illustration 7.1
Table 7.2 to Table 7.4 describe the displayed status
messages.
34
®
VLT
Status
799RPM 7.83A
0.000
53.2%
Auto Remote Ramping
Hand Local
Stop
O Running
Jogging
.
.
.
Stand by
1 2 3
AutomationDrive FC 301/302 Operating Instructions
Off
Auto On
Hand On
Table 7.2 Operation Mode
Remote
Local
Table 7.3 Reference Site
AC Brake
AMA finish OK
AMA ready
AMA running
Braking
1(1)
36.4kW
Braking max.
Coast
Ctrl. Ramp-down Control Ramp-down was selected in
Current High
Current Low
MG33AN02 - Rev. 2013-09-06
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 will 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-magnetizes 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.
The brake chopper is in operation. Generative
energy is absorbed by the brake resistor.
The brake chopper is in operation. The power
limit for the brake resistor defined in
2-12 Brake Power Limit (kW) has been reached.
•
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