Danfoss VLT AutomationDrive FC 302 Operating Manual page 94

Maintenance, Diagnostics, a...
ALARM 88, Option detection
A change in the option layout is detected.
Parameter 14-89 Option Detection is set to [0] Frozen config-
uration and the option layout has been changed.
•
To apply the change, enable option layout
changes in parameter 14-89 Option Detection.
•
Alternatively, restore the correct option configu-
ration.
WARNING 89, Mechanical brake sliding
The hoist brake monitor detects a motor speed exceeding
10 RPM.
ALARM 90, Feedback monitor
Check the connection to encoder/resolver option and, if
necessary, replace VLT
Resolver Input MCB 103.
ALARM 91, Analog input 54 wrong settings
Set switch S202 in position OFF (voltage input) when a
KTY sensor is connected to analog input terminal 54.
ALARM 96, Start delayed
The motor start has been delayed due to short-cycle
protection. Parameter 22-76 Interval between Starts is
enabled.
9 9
Troubleshooting
•
Troubleshoot the system and reset the drive after
clearing the fault.
WARNING 97, Stop delayed
Stopping the motor has been delayed because the motor
has been running for less than the minimum time specified
in parameter 22-77 Minimum Run Time.
WARNING 98, Clock fault
Time is not set, or the RTC clock has failed. Reset the clock
in parameter 0-70 Date and Time.
ALARM 99, Locked rotor
The rotor is blocked.
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 drive to determine if the
warning/alarm returns.
WARNING/ALARM 122, Mot. rotat. unexp.
The drive performs a function that requires the motor to
be at standstill, for example DC hold for PM motors.
ALARM 144, Inrush Supply
A supply voltage on the inrush card is out of range. See
the bit field result report value for more details.
•
Bit 2: Vcc high.
•
Bit 3: Vcc low.
92
VLT® AutomationDrive FC 302
®
Encoder Input MCB 102 or VLT
Danfoss A/S © 09/2018 All rights reserved.
•
Bit 4: Vdd high.
•
Bit 5: Vdd low.
ALARM 145, External SCR disable
The alarm indicates a series DC-link capacitor voltage
imbalance.
WARNING/ALARM 146, Mains voltage
Mains voltage is outside valid operating range. The
following report values provide more details.
•
Voltage too low: 0=R-S, 1=S-T, 2=T-R
•
Voltage too high: 3=R-S, 4=S-T, 5=T-R
WARNING/ALARM 147, Mains frequency
Mains frequency is outside valid operating range. Report
value provides more details.
®
•
0: frequency too low.
•
1: frequency too high.
WARNING/ALARM 148, System temp
One or more of the system temperature measurements is
too high.
WARNING 163, ATEX ETR cur.lim.warning
The drive has run above the characteristic curve for more
than 50 s. The warning is activated at 83% and deactivated
at 65% of the allowed thermal overload.
ALARM 164, ATEX ETR cur.lim.alarm
Operating above the characteristic curve for more than
60 s within a period of 600 s activates the alarm, and the
drive trips.
WARNING 165, ATEX ETR freq.lim.warning
The drive is running for more than 50 s below the allowed
minimum frequency (parameter 1-98 ATEX ETR interpol.
points freq.).
ALARM 166, ATEX ETR freq.lim.alarm
The drive has operated for more than 60 s (in a period of
600 s) below the allowed minimum frequency
(parameter 1-98 ATEX ETR interpol. points freq.).
WARNING 200, Fire mode
The drive is operating in fire mode. The warning clears
when fire mode is removed. Refer to the fire mode data in
the alarm log.
WARNING 201, Fire mode was active
The drive has entered fire mode. Cycle power to the unit
to remove the warning. Refer to the fire mode data in the
alarm log.
WARNING 202, Fire mode limits exceeded
While operating in fire mode, 1 or more alarm conditions
that would normally trip the unit have been ignored.
Operating in this condition voids unit warranty. Cycle
power to the unit to remove the warning. Refer to the fire
mode data in the alarm log.
MG34U502