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Technical Information
RS
232/RS 485 Communication Description
82/90
MS40+ Single Stage Rotary Vane Pumps User Manual / 87-901-008-01 (
E)
Electronic Self-Test
When you switch the pump on with the main On/Off switch the pump
doesn’t start immediately but it starts only after about two seconds.
This test time isn’t required if the pump is already powered as when
it is operated in remote or serial mode.
Rotor Lock Test
The rotational frequency is checked continuously. If the rotor
remains still for more than 20 sec. the pump status is changed to
“Fail”.
Oil Level Check
The oil level is continuously checked even when the pump is in Stop
status. If the oil level check highlights at low level while the pump is
OFF, it won’t starts again. If the oil level check highlights at low level
during the pump operation, it will continue to run but, if you switch
the pump off it will be impossible to start again.
NOTE
If the electronic controller status is “Oil Under-level” the pump starting is not
allowed.
NOTE
If the oil level check fails (low level) the pump doesn't stop. The test only
activates the output described above.
An Oil level sensor fail is highlighted by means of quick status led
blinking and RS232 window (see "Status led" and "Window meaning"
tables).
