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STP-H600/H1000 Series Instruction Manual
Table 15.5 Troubleshooting When Any of Abnormality/Error Warning Lamp Lights
PROCEDU
RE No.
Lamp Being Lit Probable Causes Countermeasures
Referred
Section
No.1
“OVER
TEMPERATURE”
“FAILURE”
“EMERGENCY
OPERATION”
(1) Incorrect connection of
the STP connection
cable.
Connect cables correctly.
If the cable connector is not
locked, lock it securely.
4.4.2
No.2
“OVER
TEMPERATURE”
“FAILURE”
(1) Overheat inside the STP
pump:
1) Overheat 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
lower.
2) At the time of baking or gas
suction, always cool the STP
pump.
3) Check the piping system for
leakage.
4) Repetitious start/stop
operations may cause the
STP pump to overheat.
7.3
7.2
3.3.4
5.2
No.3
“BATTERY
OPERATION”
“EMERGENCY
OPERATION”
(1) Power failure. Check a power failure. 6.1.1
No.4
“FAILURE”
(1) Incorrect connection of
the emergency vent.
valve cable.
Connect the cable correctly. If
the cable connector is not
locked, lock it securely.
4.4.2
(2) When the rated operation
does not start approx. 15
minutes after start
operation is executed:
When the
ACCELERATION state
continues for approx. 15
minutes:
1) Insufficient pressure at
the inlet port.
2) Insufficient pressure at
the outlet port.
3) Leakage of the piping
system.
4) Failure of the auxiliary
pump.
5) Incorrect connection of
the motor connection
cable.
1) Use the maximum working
pressure or less.
2) Use the allowable backing
pressure or less.
3) Check the piping system for
leakage.
4) Check the auxiliary pump
for its capacity and START
state.
(use a pump with the
recommended capacity or
more).
5) Connect the cable correctly.
If the cable is not locked,
lock it securely.
6.1.4
3.3.4
16.1
3.3.4
16.1
3.3.4
3.3
16.1
4.4.2
15-6