SECTION 7 TROUBLESHOOTING
76
263-13228
7
Alarm
Code
LCD Display Cause Protective Action
48 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 49=TMP:CAN NOT START
Pump fails to rotate within 15
seconds after start-up.
51 51=MB:VIBRATION2 X1
Continuous excessive vibration
of the magnetic bearing.
52 52=MB:VIBRATION2 Y1
53 53=MB:VIBRATION2 X2
54 54=MB:VIBRATION2 Y2
55 55=MB:VIBRATION2 Z
56 56=MB:VIBRATION1 X1
Excessive magnetic bearing
vibration.
57 57=MB:VIBRATION1 Y1
58 58=MB:VIBRATION1 X2
59 59=MB:VIBRATION1 Y2
60 60=MB:VIBRATION1 Z
61 61=MB:SENSOR ERR. X1
Abnormal output signal from the
magnetic bearing sensor.
62 62=MB:SENSOR ERR. Y1
63 63=MB:SENSOR ERR. X2
64 64=MB:SENSOR ERR. Y2
65 65=MB:SENSOR ERR. Z
66 66=MB:DSP ERROR
Error in the DSP for magnetic
bearing control.
67 67=MB:DSP OVERFLOW
Overflow in the magnetic bearing
control calculations.
68 68=MB:BALANCE AXIS1 Rotor is out of balance.
69 69=MB:BALANCE AXIS2
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