STP-L301/L451 Series Instruction Manual
11-7
Troubleshooting
11.2.3 Abnormalities when Powering ON
Table 11.2 Troubleshooting after Powering ON
Symptom Probable cause Countermeasures Refer to
The "POWER" LED does
not illuminate, when
powering ON.
Incorrect connection of
the power cable
Connect the power cable
correctly.
6.4.2
Abnormal power voltage Set the voltage to 100 to
120 V +/–10% (100 V
spec.) or 200 to 240 V
+/–10% (200 V spec.).
6.4.2
13.2
Power failure Check whether a power
failure has occurred.
10.1
The breaker goes OFF
when powering ON.
Abnormal power voltage
(200 V is applied to the
STP control unit of 100 V
spec.)
Set the voltage to 100 to
120 V +/–10 %.
6.4.2
13.2
11.2.4 Abnormalities when Performing the STP Pump Start Operation
Table 11.3 Troubleshooting when Performing the STP Pump Start Operation
Symptom Probable causes Countermeasures Refer to
The "ACCEL." LED does
not illuminate.
LCD message
(MANUAL operation only)
Press the "SELECT"
switch one or more times
until the LCD displays
"LEVITATION" or
"BRAKE ***00rpm".
7.4.2
The
"MANUAL/REMOTE"
changeover switch is not
at the correct position.
Slide the
"MANUAL/REMOTE"
changeover switch to the
correct position.
6.1.1
7.4
7.5
Blown fuses (F1 to 4) for
remote signal input
(REMOTE operation only)
Replace the blown fuses.
Contact Service office.
8.2
Malfunction
Information
Incorrect setting of
DSW-B No.4 (only with
CON4)
Set the DSW-B No.4 to
either "ON/OFF"
according to the remote
input connector/terminal.
6.1.3
7.5/7.6
8.2/8.3
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