Danfoss VLT AutomationDrive FC 302, Руководство по установке, Страница: 77 / 128

Troubleshooting
The heatsink temperature measured as 32°F [0
°
C] could
indicate that the temperature sensor is defective, causing
the fan speed to increase to the maximum. If the sensor
wire between the IGBT and the gate drive card is discon-
nected, this warning would result. Also, check the IGBT
thermal sensor.
ALARM 67, Option module configuration has changed
One or more options have either been added or removed
since the last power-down. Check that the configuration
change is intentional and reset the unit.
ALARM 68, Safe Stop activated
Safe Torque Off has been activated. To resume normal
operation, apply 24 V DC to terminal 37, then send a reset
signal (via bus, digital I/O, or by pressing [Reset]).
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
Troubleshooting
•
Check the operation of the door fans.
•
Make sure that the filters for the door fans are
not blocked.
•
Check that the connector plate is properly
installed on IP21/IP 54 (NEMA 1/12) adjustable
frequency drives.
ALARM 70, Illegal FC configuration
The control card and power card are incompatible. To
check compatibility, contact the Danfoss supplier with the
type code of the unit from the nameplate and the part
numbers of the cards.
ALARM 71, PTC 1 Safe Torque Off
Safe torque has been activated from the MCB 112 PTC
Thermistor Card (motor too warm). Normal operation can
resume when the MCB 112 applies 24 V DC to T-37 (when
the motor temperature is acceptable) and when the digital
input from the MCB 112 is deactivated. When that
happens, a reset signal must be sent (via Bus, Digital I/O,
or by pressing [Reset]). Note that if automatic restart is
enabled, the motor could start when the fault is cleared.
ALARM 72, Dangerous failure
Safe Torque Off with trip lock. Unexpected signal levels on
safe stop and digital input from the MCB 112 PTC
thermistor card.
WARNING 73, Safe Stop auto restart
Safe stopped. With automatic restart enabled, the motor
can start when the fault is cleared.
WARNING 76, Power unit set-up
The required number of power units does not match the
detected number of active power units.
Troubleshooting
When replacing an F-frame module, this warning occurs, if
the power-specific data in the module power card does
not match the rest of the adjustable frequency drive.
Confirm that the spare part and its power card are the
correct part number.
WARNING 77, Reduced power mode
The adjustable frequency drive is operating in reduced
power mode (less than the allowed number of inverter
sections). This warning is generated on power cycle when
the adjustable frequency drive is set to run with fewer
inverters and remains on.
ALARM 79, Illegal power section configuration
The scaling card has an incorrect part number or is not
installed. The MK102 connector on the power card could
not be installed.
ALARM 80, Drive initialized to default value
Parameter settings are initialized to default settings after a
manual reset. To clear the alarm, reset the unit.
ALARM 81, CSIV corrupt
CSIV file has syntax errors.
ALARM 82, CSIV parameter error
CSIV failed to initialize a parameter.
ALARM 85, Dang fail PB
Profibus/Profisafe error.
WARNING/ALARM 104, Mixing fan fault
The fan is not operating. The fan monitor checks that the
fan is spinning at power-up or whenever the mixing fan is
turned on. The mixing fan fault can be configured as a
warning or an alarm trip in
parameter 14-53 Fan Monitor .
Troubleshooting
•
Cycle power to the adjustable frequency drive to
determine if the warning/alarm returns.
ALARM 243, Brake IGBT
This alarm is only for F-frame adjustable frequency drives.
It is equivalent to Alarm 27. The report value in the alarm
log indicates which power module generated the alarm:
1 = left most inverter module.
2 = middle inverter module in F12 or F3 frame
sizes.
2 = right inverter module in F10 or F11 frame
sizes.
2 = second adjustable frequency drive from the
left inverter module in F14 frame size.
3 = right inverter module in F12 or F13 frame
sizes.
3 = third from the left inverter module in F14
frame size.
Status Messages Installation Manual
MG37A322 Danfoss A/S © Rev. 04/2015 All rights reserved. 75
7 7