9 | Help with faults
BÜCHI Labortechnik AG
44/56
Operation Manual SyncorePlus
Error message Possible cause
Solution
981
No I2C signal from touch con-
troller during 300 ms
u
Restart the instrument.
u
Contact BUCHI Customer
Service.
982
No I2C signal from display dur-
ing 300 ms
u
Restart the instrument.
u
Contact BUCHI Customer
Service.
983
The fault signal from the motor
driver is still active after 5 resets
of the driver
u
Restart the instrument.
u
Contact BUCHI Customer
Service.
984
No signal from motor encoder
during 3 sec.
u
Restart the instrument.
u
Contact BUCHI Customer
Service.
985
No sensor connection bit from
AD converter set during 1 sec.
u
Restart the instrument.
u
Contact BUCHI Customer
Service.
986
No sensor connection bit from
AD converter set during 1 sec.
u
Restart the instrument.
u
Contact BUCHI Customer
Service.
987
Temperature of Cover for more
than 3 sec. above 80 °C
u
Check Cover connection.
u
Restart the instrument.
u
Contact BUCHI Customer
Service.
988
Temperature of Base for more
than 3 sec. above 120°C
u
Replace the defective parts
u
Restart the instrument.
u
Contact BUCHI Customer
Service.
989
Current of motor above 1.5 A
during 3 sec.
u
Check drive for blocking ele-
ments.
u
Check motor drive, and rack
load.
990
Main voltage during 5 sec.
above 275 V (nominal 230 V),
142 V (nominal 115 V), 120 V
(nominal 100 V)
u
Check main voltage.
991
Acceleration of instrument
above 0.126 g during 1 sec.
(second level)
u
Adjust the unbalance com-
pensation.
992
One or more parameter out of
range
u
Check and reconfigure pa-
rameters.
u
Restart the instrument.
u
