MKS SM 1280, Технические заметки

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page 26 of 27 File: SM1280_r7eng - April 2017 - Technical note: SM1280
SM 1280
ALARM TROUBLESHOOTING
Code Description Cause/Solution
06
Low Air
Pressure
from head
If it isn’t used the related input must be grounded.
If used, contact grounded=OK, open=alarm
Check head air filter.
07
Low Water Flow
from head
If it isn’t used the related input must be grounded.
If used, contact grounded=OK, open=alarm
Check head water flow.
08 Open Interlock
Check interlocks on magnetron head assembly including
waveguide. Check 25 pin D-Sub interlock
09 Current Leakage
Check Connector # 3 for signs of arcing: in case replace both
socket & plug with new one.
Check arcing on the magnetron head.
in case replace the magnetron
10 Rack Error
The unit has detected an output current 10% lower than
expected, usually due by a sudden drop of the main line voltage:
check the main line
11 -
Not implemented
12 -
Not implemented
13 -
Not implemented
14
Communication
interrupted
The unit was running in “remote control mode” and the
communication failed. Check:
a) cable and connectors insertion
b) remove any “suspend or low power mode” from yr PC (the OS
may stops to drive the PC serial port)
c) disable any screen saver from the PC
d) do not move the FrontPanel window on yr desktop: some
early version of operating system may stop driving the serial
port.
15
No data transfer
on fieldbus
The unit was running in “remote control mode” and the
communication failed. Check:
a) fieldbus cable and connectors
b) master device (PC or PLC) functionality.
c) correct node addressing on SM1280