Edwards STP-301 Series User Manual

STP-301/451 Series Instruction Manual
11-3
Troubleshooting
Table 11.1 Error Messages
LCD Message Probable Cause Countermeasures Refer to
Incorrect connection of the
STP connection cable
Connect the cable correctly.
If the cable connector is not
locked, lock it securely.
6.4.2 CABLE
DISCONNECT
Failure of the STP connection
cable
Contact Service office. Malfunction
Information
Overheating inside the STP
control unit
1) Ambient temperature 1) Set the ambient
temperature to 40°C or
less.
6.2.1
CONTROLLER OT
2) Insufficient cooling of the
STP control unit
2) Remove obstacles from
the ventilation port.
If the air cooling fan is
broken, contact Service
office.
6.2.3
11.3.1
Abnormal magnetic bearing
1) The STP pump and the
STP control unit have
different serial numbers.
1) Use the units having the
same serial number, or
perform tuning.
9.1
2) The cable length is
changed.
2) Perform tuning. 9.1
Excessive external vibration
(vibration of 100μm0-P or
more)
1) External vibration/impact 1) Remove the external
vibration so as not to
transmit it to the STP
pump.
4.3.4
2) Atmospheric air flows into
the STP pump
2) Check piping. 4.3.4
DISTURBANCE
3) Foreign particles fall into
the STP pump
3) Install the pump in a way
that no foreign particles
fall into the pump.
4.3.1
DRIVER ERROR 1
DRIVER ERROR 2
DRIVER ERROR 3
DRIVER ERROR 4
DRIVER ERROR 5
DRIVER ERROR 6
Motor driver failure Contact Service office. Malfunction
Information
DRIVER HF Hall sensor error Contact Service office.
DRIVER OC Motor driver overcurrent Contact Service office.
DRIVER OV Motor driver overvoltage Contact Service office.
DRIVER RA STP pump overspeed
(detected in the range of
49,500 to 53,000 rpm)
Contact Service office.
DRIVER UV Motor driver undervoltage Contact Service office.
Malfunction
Information

Edwards STP-301 Series Specifications

General

Brand	Edwards
Model	STP-301 Series
Category	Water Pump
Language	English