Edwards STP-451C User Manual

STP-301/451 Series Instruction Manual
11-4
Troubleshooting
LCD Message Probable Cause Countermeasures Refer to
Motor driver overload
1) Insufficient pressure at
the inlet port
1) Use the maximum
working pressure or less.
4.3.4
13.1
2) Insufficient pressure at
the outlet port
2) Use the allowable backing
pressure or less.
4.3.4
13.1
3) Leakage of the piping
system
3) Check the piping system. 4.3.4
OVERLOAD
4) Failure of the backing
pump
4) Check the backing pump
for its capacity and start
state. (use a pump with
the recommended
capacity or more)
4.3.4
13.1
OVERSPEED STP pump overspeed (detected
at over 51,400 rpm)
Contact Service office. Malfunction
Information
Power supply failure
1) Power failure 1) Check whether or not a
power failure has
occurred.
10.1
2) Incorrect connection of
power cable
2) Connect the power cable
correctly.
6.4.2
3) Power cable breaking 3) Replace the power cable. 6.4.2
POWER FAILURE
4) Abnormal power voltage 4) Set the voltage to 100 to
120V +/-10% (100V spec.)
or to 200 to 240V +/-10%
(200V spec.).
6.4.2
Overheating inside the STP
pump
1) Overheating during
baking
1) et the temperature of
baking heater to 120°C or
lower.
5.1
2) Insufficient cooling 2) At the time of baking or
gas suction, always cool
the STP pump.
5.2
3) Leakage of the vacuum
piping system
3) Check the piping system
for leakage.
4.3.4
PUMP
OVERTEMP
4) Repetitious start/stop
operations
4) Repetitious start/stop
operations may cause the
overheat.
7.2
RAM ERROR Microcomputer sequence
circuit failure
Contact Service office. Malfunction
Information
Incorrect connection of the
STP connection cable
Connect the cable correctly.
If the cable connector is not
locked, lock it securely.
6.4.2
STP connection cable failure Contact Service office.
THERMAL
ERROR
Thermal sensor wire breaking
inside the STP pump
Contact Service office.
Malfunction
Information
TEST ERROR Abnormal end of self test Contact Service office. Malfunction
Information
TUNING ERROR 1
TUNING ERROR 2
TUNING ERROR 3
TUNING ERROR 4
TUNING ERROR 5
Tuning error Contact Service office. Malfunction
Information

Edwards STP-451C Specifications

General

Brand	Edwards
Model	STP-451C
Category	Water Pump
Language	English