Edwards SCU-800 User Manual

SCU-800 Control Unit for Turbomolecular Pump
MT-49E-101-G
Page 107
7
MAINTENANCE
7.2 "WARNING" message function
7.2.1 "WARNING" message display function
The SCU-800 is provided with a "WARNING" message to display when an overhaul is needed
following a self test. When a "WARNING" appears in the upper left hand corner of the LCD, press the
"ENTER" switch to display the warning message for seconds (The "ENTER" switch can also be used
in REMOTE mode).
The warning signal is output from the remote output terminal of the remote connector X7 while the
alert message is displayed (see Table 10). Overhaul the STP pump when "WARNING" message is
displayed
Example:
WARNING Levitation
The upper line of the LCD displays the operational status of the
STP pump. The "WARNING" is displayed in each state
(acceleration, normal operation and deceleration) of the STP
pump. WARNING display changes:
W->WA->WAR->…->WARNING->W->…
Press the "ENTER" switch
WARNING
First Damage Limit
Warning message.
Note: The "WARNING" message cannot be reset by the "RESET" switch.
See Section 7.3, "WARNING" message description" for the resetting the "WARNING"
message.
The STP pump can operate even when the "WARNING" message is displayed except when
the "Second Damage Limit" is displayed.

Edwards SCU-800 Specifications

General

Brand	Edwards
Model	SCU-800
Category	Control Unit
Language	English