Ulvac UTM1600 Series, Instruction Manual

Page: 97 / 108

9.5 Alarm Detection Capabilities
83
9
Table 9-5
If the Alarm Lamp Flashes
Alarm
code
Alarm name Possible cause Remedy
Sec-
tion
1
79 EI:DEW WARN Internal condensation Check that the ambient temperature
and humidity around the pump and
the temperature of cooling water are
within the specified range. 4.3
5.3
2
80 EI:CONT.TEMP.WARN Temperature increase
in the control system. Check that the ambient temperature
around the pump is within the
specified range.
Check that the temperature and flow
rate of the cooling water are within
the specified ranges. 4.1
4.3
5.3
3
81
82
83
84
85 MB:SELFCHECK X1
MB:SELFCHECK Y1
MB:SELFCHECK X2
MB:SELFCHECK Y2
MB:SELFCHECK Z Rattling of the
protective bearing
becomes pronounced. Deterioration of the protective bearing
is likely. Overhaul as soon as possible
to avoid damage to the protective
bearing in the event of a power failure
etc.
4
86
87
88
89
90 MB:VIB. WARN. X1
MB:VIB. WARN. Y1
MB:VIB. WARN. X2
MB:VIB. WARN. Y2
MB:VIB. WARN. Z Transient strong
external shock or
vibrations. Continuous operation is possible
However, if the shock or vibrations
occur frequently, stop the pump and
remove the source of the shock or
vibrations; or re-examine the pump
mounting method.
5
91
92 MB:BALANCE WARN.1
MB:BALANCE WARN.2 Rotor inside the pump
is out of balance Adhesion of reaction products is a
possibility. An overhaul is
recommended.
6
94 MB:AIR RUSH B Atmospheric
penetration has
occurred. Create a vacuum system not allowing
atmospheric penetration by
reexamining the operating sequence
of the back pump and valves etc.
7
95 MB:DSP WARNING Abnormal operation of
circuit in the power
supply unit. Check that the ambient temperature
around the pump is within the
specified range.
Check that the temperature and flow
rate of the cooling water are within
the specified ranges.
Check that equipment causing noise
is not used around the pump and
power cable. 4.1
4.3
5.2
5.3
8
99 MAINTENANCE TIME Maintenance call timer
has reached the set
time. Implement maintenance works
prescribed by the customer, such an
overhaul. The alarm can be cancelled
by resetting the maintenance call
timer after implementing necessary
works. 6.6