Warning And Alarm Types; List Of Warnings And Alarms - Danfoss VLT Decentral Drive FCD 302 Operating Manual

Maintenance, Diagnostics, a...
Stop
Trip
Trip lock
6 6
Table 6.4 Operation Status
NOTICE
In auto/remote mode, the frequency converter requires
external commands to execute functions.

6.5 Warning and Alarm Types

Warnings
A warning is issued when an alarm condition is impending,
or when an abnormal operating condition is present and
may result in the frequency converter issuing an alarm. A
warning clears by itself when the abnormal condition
ceases.
Alarms
An alarm indicates a fault that requires immediate
attention. The fault always triggers a trip or a trip lock.
Reset the system after an alarm.
Trip
An alarm is issued when the frequency converter is
tripped, meaning that the frequency converter suspends
operation to prevent frequency converter or system
damage. The motor coasts to a stop. The frequency
converter logic continues to operate and monitor the
frequency converter status. After the fault condition is
remedied, the frequency converter can be reset. It is then
ready to start operation again.
Resetting the frequency converter after trip/trip lock
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.
Trip lock
Input power is cycled. The motor coasts to a stop. The
frequency converter continues to monitor the frequency
converter status. Remove input power to the frequency
converter, correct the cause of the fault, and reset the
frequency converter.
34
VLT
The frequency converter received a stop
command from the LCP, digital input, or serial
communication.
An alarm occurred and the motor is stopped.
Once the cause of the alarm is cleared, the
frequency converter can be reset manually by
pressing [Reset] or remotely by control
terminals or serial communication.
An alarm occurred, and the motor is stopped.
When the cause of the alarm is cleared, cycle
power to the frequency converter. The
frequency converter can then be reset
manually by pressing [Reset], or remotely by
control terminals or serial communication.
Danfoss A/S © 11/2016 All rights reserved.
®
Decentral Drive FCD 302
Warning and alarm displays
•
A warning is shown in the LCP along with the
warning number.
•
An alarm flashes along with the alarm number.
Illustration 6.3 Alarm Example
In addition to the text and alarm code in the LCP, there are
3 status indicator lights.
Warning
Alarm
Trip lock
Illustration 6.4 Status Indicator Lights

6.6 List of Warnings and Alarms

The following warning and alarm information defines each
warning or alarm condition, provides the probable cause
for the condition, and details a remedy or troubleshooting
procedure.
WARNING 1, 10 Volts low
The control card voltage is less than 10 V from terminal 50.
Remove some of the load from terminal 50, as the 10 V
supply is overloaded. Maximum 15 mA or minimum 590 Ω.
A short circuit in a connected potentiometer or incorrect
wiring of the potentiometer can cause this condition.
Troubleshooting
•
Remove the wiring from terminal 50. If the
warning clears, the problem is with the wiring. If
the warning does not clear, replace the control
card.
Status
0.0Hz 0.000kW
0.0Hz
0
Earth Fault [A14]
Auto Remote Trip
On
OK
Warn.
Alarm
Warning indicator light Alarm indicator light
On Off
Off On (flashing)
On On (flashing)
1(1)
0.00A
MG04F502