Edwards SCU-1600

SCU-1600 Control Unit for Turbomolecular Pump
March 10 109 Issue 1-a
7
MAINTENANCE
7.2 "WARNING" message function
7.2.1 "WARNING" message display function
The SCU-1600 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 9)
Example:
WARNING Levitation
Press the "ENTER" switch
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->…
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.