Ulvac UTM1600 Series, Instruction Manual

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SECTION 9 TROUBLESHOOTING
84
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 touch-down counter
exceeded the specified number.
15 POWER FAILURE Power failure.
Regenerative
braking
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
19 EI:FAILURE
The power supply unit cannot recognize the pump
correctly.
Start-up impossible
(detected during
power supply self-
diagnostics)
21 TMP TEMP/MB CABLE Increased pump drive motor temperature. Free run
(motor stop)
23 EI:MOTOR OVERCURR Overcurrent ran through the motor.
24 TMP:OVER TEMP Pump temperature. Deceleration
30 EI:CONT. TEMP ERR Increased temperature inside the control system
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
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