LAFERT HP Combi Flow, Руководство пользователя, Страница: 71 / 72

Version 3.11
| HPI Combi Flow User Guide |
71 www.lafert.com
Fault
Code
No. Message Description Corrective Action
Ft- 13 Excessive DC ripple Excessive DC
Ripple on Internal
DC bus
The DC Bus Ripple Voltage level can be displayed in parameter P0-16.
A historical log is stored at 20ms intervals prior to a trip in parameter P0-37.
Check all three supply phases are present and within the 3% supply voltage level
imbalance tolerance.
Reduce the motor load.
If the fault persists, contact the Lafert Group Technical Department.
-o 14 Input phase loss Input phase missing
trip
Drive intended for use with a 3 phase supply, one input phase has been
disconnected or lost.
 -
15 Hardware detected
Instant over current
Instantaneous over
current on drive
output
Refer to fault 3 above.
t-Ft
16 Thermistor Fault Faulty thermistor on
heat-sink
Refer to the Lafert Group Technical Department.
t-F
17 I/O processor data
error
Internal memory
fault
Parameters not saved, defaults reloaded.
If problem reoccurs, refer to the Lafert Group Technical Department.
-F
18 4-20mA signal out
of range
4-20mA Signal
Lost
The reference signal on Analog Input 1 or 2 (Terminals 6 or 10) has dropped
below the minimum threshold of 3mA when signal format is set to 4-20mA.
Check the signal source and wiring to the HP Combi Flow terminals.
t-E
19 M/C processor
data error
Internal memory
fault
Parameters not saved, factory defaults are reloaded.
If problem reoccurs, refer to the Lafert Group Technical Department.
-e
20 User Parameter
Default
User Parameter
Defaults
User Parameter default has been loaded. Press the Stop key. Three button default
– see section 5.5. Parameter User Reset .
F-t
21 Motor PTC over heat Motor PTC Over
Temperature
The connected motor PTC device has caused the drive to trip (analog input 2
configured for PTC device).
F-F
22 Cooling Fan Fault Cooling Fan Fault Check and if necessary, replace the drive internal cooling fan.
-et
23 Ambient Temperature
High
Ambient
Temperature too
High
Ensure the drive internal cooling fan is operating.
Ensure that the required space around the drive as shown in section
3.7.
Guidelines for Mounting (IP66 Units) has been observed, and that the cooling
airflow path to and from the drive is not restricted.
Increase the cooling airflow to the drive.
Reduce the effective switching frequency setting in parameter P2-24.
Reduce the load on the motor / drive.
-to 24 High motor current Motor current
above configured
profile
Current Monitoring Function has detected motor current levels above the normal
operating condition for the application.
Check mechanical load has not changed and that the load is not jammed or
stalling.
For pump application check for potential pump blockage.
For fan applications check airstream to and from the fan is not restricted.
-o
25 Low motor current Motor current
below configured
profile
Current Monitoring Function has detected motor current levels below the normal
operating condition for the application.
Check for mechanical breakages causing loss of load (e.g. belt break).
Check motor has not become disconnected from the drive.
t-F
26 Drive Output Fault Drive output fault Drive output fault.
Check for loose motor cables at the drive and at the motor or any termination in
between. Otherwise refer to the Lafert Group Technical Department.
Sto-F
29 Internal STO circuit
Error
Refer to the Lafert Group Technical Department
tF-
40 Autotune fail 1 Autotune Failed Measured motor stator resistance varies between phases. Ensure the motor
is correctly connected and free from faults. Check the windings for correct
resistance and balance.
tF-
41 Autotune fail 2 Measured motor stator resistance is too large. Ensure the motor is correctly
connected and free from faults. Check that the power rating corresponds to the
power rating of the connected drive.
tF-
42 Autotune fail 3 Measured motor inductance is too low. Ensure the motor is correctly connected
and free from faults.
tF- 43 Autotune fail 4 Measured motor inductance is too large. Ensure the motor is correctly
connected and free from faults. Check that the power rating corresponds to the
power rating of the connected drive.
tF-
44 Autotune fail 5 Measured motor parameters are not convergent. Ensure the motor is correctly
connected and free from faults. Check that the power rating corresponds to the
power rating of the connected drive.
Tr
oublesh
ooting
12