Edwards STP-iX455

STP-iX455/iXL455 Series Instruction Manual
13-5
"FAILURE"
LED
(Error message)
Pump
operation
Occurrence
condition
Probable causes Countermeasures
Referred
Section
Steady red M_Temp Lost Decelerate
and stop
Abnormal
motor
temperature
detection
Disconnection of the
motor temperature
sensor.
Contact Service office.
Overspeed 1, 2, 3 Decelerate
and stop
Rotaional speed
exceeds rated speed
Failure of the control unit. Contact Service office.
Power Failure Decelerate
and stop
Insufficient power
supply
1) Power failure. 1) Check whether or not a power fa
ilure
has occurred.
11.1
2) Incorrect connection of the power
cable.
2) Connect the power cable correctly. 4.4
3) Failure of the power cable. 3) Replace the power cable. 4.4
4) Failure of the external power supply. 4) Set the voltage to 48 V DC. 4.4
4.5
5) Abnormal AC main power voltage on
the vacuum equipment.
5) Check the AC main power voltage.
Ram Error Decelerate
and stop
Failure of RAM
check in MPU
Failure of the control unit. Contact Service office.
Record Failure Decelerate
and stop
Failure of record in
memory
Failure of the control unit.
Contact Service office.
Serial Com. Fail Decelerate
and stop
Communication
failure of the input
operation port
during acceleration
and normal
operation
1) Insufficient user application setting. 1) Send a communication command
periodically at intervals of less than
setting value.
9.2.5
2) Disconnection or break of the
communication cable.
2) Check the communication cable.
3) Failure of the control unit. 3) Contact Service office.
Speed Pulse Lost Decelerate
and stop
A
bnormal rotatinal
speed detection
Failure of the control unit. Contact Service office.