STP-H803/H1303 Series Instruction Manual
LCD Messages
Probable Causes
Countermeasures
Referred
Section
Error Message n
°
**/** If an error occurs
（
**/** shows the number of
errors occurred
）
.
Refer to the respective
error message.
11.2
First Damage Limit
First damage phenomenon
appeared on the touch down
bearing (the STP pump does not
stop).
Overhaul is needed.
Contact Service office.
Malfunction
information
E.Valve Disconnect
Disconnection of the emergency
vent valve cable (not used in this
specification model).
Connect the cable
correctly. If the cable
connector is not locked,
lock it securely.
Failure of the emergency vent
valve cable (not used in this
specification model).
Contact Service office.
Incorrect setting of the
emergency vent valve (not used
in this specification model).
When the emergency vent
valve function is set to
"ENABLE," set it to
"DISABLE".
9.3
MOTOR Overheat
Overheating inside the STP
pump:
1) Overheating during baking
2) Insufficient cooling
3) Leakage of the vacuum
piping system
4) Repetitious start/stop
operations
1) Set the temperature
of the baking heater
to 120°C or less.
2) At the time of
baking or gas
pumping, always
cool the STP pump.
3) Check the piping
system for leakage.
4) Repetitious
start/stop operations
may cause the STP
pump to overheat.
5.3
5.2
4.3.4
7.3
M_TEMP SENSOR
LOST
Failure of the STP pump.
Contact Service office.
Malfunction
information
Mains Failure
Insufficient power supply:
1) Power failure
2) Incorrect connection of the
power cable.
3) Failure of the power cable
4) Failure of the power
voltage
1) Check whether or
not a power failure
has occurred.
2) Connect the power
cable correctly.
3) Replace the power
cable.
4) Set the voltage to
the rated voltage
±
10%.
10.1
6.4.2
Malfunction
information
6.4.2
13.2
No Levitation
The rotor does not levitate.
Refer to the respective
error message.
11.2
OVERSPEED 1
OVERSPEED 2
OVERSPEED 3
Overspeed of the STP pump.
Contact Service office.
Malfunction
information
Troubleshooting
11-5
