Danfoss FC 300 Design Manual page 195

FC 300 Design Guide
The actual motor current has not exceeded
the "release brake" current within the "Start
delay" time window.
WARNING 64, Voltage Limit:
The load and speed combinations demand a
motor voltage higher than the actual DC link
voltage.
WARNING/ALARM/TRIP
Card Overtemperature:
Control card overtemperature: The cut-out
temperature of the control card is 176° F [80°
C].
WARNING 66, Heatsink Temperature
Low:
The heatsink temperature is measured at 32°
F [0° C]. This may indicate that the tempera-
ture sensor is defective, and thus the fan
speed is increased to the maximum if the pow-
er part or control card is very hot.
ALARM 67, Option Configuration has
Changed:
One or more options has either been added or
removed since the last power-down.
ALARM 68, Safe Stop:
Safe Stop has been activated. To resume nor-
mal operation, apply 24 V DC to T-37, then
send a reset signal (via Bus, Digital I/O, or by
pressing [RESET]).
WARNING 68, Safe Stop:
Safe Stop has been activated. Normal opera-
tion is resumed when safe stop is disabled.
Warning: Automatic Restart!
ALARM 70, Illegal FC Configuration:
Current combination of control board and
power board is illegal.
ALARM 71, PTC 1 Safe Stop:
Safe stop has been activated from the MCB
112 PTC thermistor card (motor too warm).
Normal operation can be resumed when the
MCB 112 applies 24 V DC to T-37 again (when
the motor temperature reaches an acceptable
level) and when the digital input from the MCB
112 is deactivated. When that happens, a re-
set signal must be is be sent (via Bus, Digital
I/O, or by pressing [RESET]).
WARNING 71, PTC 1 Safe Stop:
Safe stop has been activated from the MCB
112 PTC thermistor card (motor too warm).
Normal operation can be resumed when the
65, Control
MG.33.B9.22 - VLT ® is a registered Danfoss trademark.
10. Troubleshooting
MCB 112 applies 24 V DC to T-37 again (when
the motor temperature reaches an acceptable
level) and when the digital input from the MCB
112 is deactivated. Warning: Automatic Re-
start.
ALARM 72, Dangerous Failure:
Safe Stop with Trip Lock. Unexpected signal
levels on safe stop and digital input from the
MCB 112 PTC thermistor card.
ALARM 80, Drive Initialized to Default
Value:
Parameter settings are initialized to default
setting after a manual (three-finger) reset.
ALARM 90, Encoder loss:
Check the connection to encoder option and
eventually replace the MCB 102 or MCB 103.
ALARM 91, Analog Input 54 Wrong Set-
tings:
Switch S202 has to be set in position OFF
(voltage input) when a KTY sensor is connec-
ted to analog input terminal 54.
ALARM 250, New Spare Part:
The power or Switch Mode Power Supply has
been exchanged. The adjustable frequency
drive type code must be restored in the EE-
PROM. Select the correct type code in Par
14-23 according to the label on unit. Remem-
ber to select 'Save to EEPROM' to complete.
ALARM 251, New Type Code:
The adjustable frequency drive has a new
type code.
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