Ulvac UTM3400 Series, Instruction Manual

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SECTION 9 TROUBLESHOOTING
78
9
Table 9-6 Table of Alarms
Alarm
code
Alarm name Possible cause Protective action
11 TD COUNTER LIMIT
Counts of the high speed touch-down counter
exceeded the specified number. Start-up impossible
(detected during
power supply self-
diagnostics)
12 PF COUNTER LIMIT
Counts of the power failure touchdown counter
exceeded the specified number.
14 AC LOW VOLTAGE Fall in AC input power voltage. Regenerative
braking
15 POWER FAILURE Power failure.
16 TMP:OVERLOAD
After accelerating to 80 % of the designated
speed or low-speed setting, the speed dropped
below 80 % due to overloading etc. Deceleration
21 TMP TEMP/MB CABLE Increased pump drive motor temperature. Free run
(motor stop)
22 TMP:SENSOR ERROR
Pump rotation signal could not be detected
correctly.
23 EI:MOTOR OVERCURR Overcurrent ran through the motor.
24 TMP:OVER TEMP Increased pump Temperature Deceleration
30 EI:CONT. TEMP ERR Increased temperature inside the control system Deceleration
32 EI:DC-DC OVERTEMP Increased temperature inside control system. Free run
(motor stop)
34 EI:INV. OVERCURR Overcurrent ran through the motor.
35 EI:INV. OVERVOLT Defective circuit.
36 EI:DC-DC LOW VOLT Defective circuit.
Regenerative
braking
37 EI:DC-DC OVERCURR Defective circuit. Deceleration
38 EI:DC-DC OVERVOLT Defective circuit.
39 EI:DEW ERROR Dew ERROR Deceleration
43 EI:PARAM ERROR Stored parameters are not correct.
Start-up impossible
(detected during
power supply self-
diagnostics)
44 EI:CPU ERROR Error in the CPU for inverter control. Free run
(motor stop)
45 EI:BRAKE OVERTIME
Pump does not stop within the specified time
after the stop operation.
46 MOTOR OVERSPEED Pump rotation speed is too high.
47 EI:R-SPEED ERROR Pump rotation speed cannot be detected.
48 EI:ACCEL OVERTIME
Pump does not accelerate to 80 % of the
designated speed or low-speed setting within
the specified time after start-up. Deceleration
49 TMP:CAN NOT START
Pump fails to rotate within 2 minutes after start-
up.
51 MB:VIBRATION2 X1 Continuous excessive vibration of the magnetic
bearing.
52 MB:VIBRATION2 Y1
53 MB:VIBRATION2 X2
54 MB:VIBRATION2 Y2
55 MB:VIBRATION2 Z