BUSCH 7180551, Installation And Maintenance Instructions Manual

Page: 9 / 36

Technical data
Technical data Temperature sensor TS
Type 90210/10-303-1001-1-6-150-254/330
Measuring range -50 °C ... +150 °C C = 4...20mA
Measuring element 3-conductor technic DIN B
Measuring transmitter JUMO DTRANS T03
Connector M12 x 1 Type Binder
Supply voltage 7,5...30 VDC
Wiring diagram
Monitoring the condition of the ball bearings
A vibration transmitter (SA) which is installed in the cylinder suction
side, supervises the condition of the ball bearings. These must be
replaced when the relevant set values are exceeded.
Designation Set value [mA]
SA Vibration pickup 8,0
An temporisation of 2 seconds for this measured value to be used, is
admissible.
If the measured value re-falls within 2 seconds under the reference
value, the vacuum pump can still function without stopping.
If the measured value exceeds the reference value for more than 2
seconds, the gas inlet must be automatically closed. If the measured
value, 10 seconds moreafter, falls one more time under the reference
value, the gas inlet can be re-opened and the vacuum pump can still
function without stopping. Anyway, if within the next 300 seconds, a
new exceeding of the reference value appears, the vacuum pump must
be immediately switched off under the procedure “Switching off the
vacuum pump “ see page 12.
Technical data
Technical data Vibration pickup SA
Type MTN/ 2287 ICM6-1
Measuring range 0 - 1 g
Signal 4 ... 20 mA
Supply voltage 24 VDC
Electrical wiring diagram
Installation and Commissioning
Page 9
-Vs
+Vs
1 2
White Black
2
1
3
4
White
Black -Vs
+Vs
Measured value SA
> Reference value?
Proceed to the
“Vacuumpump stop”
Vacuumpump
in operation
NO
YES
10 seconds
NO
NO
NO
Gasinlet
Close the inlet
YES
YES
YES
Gasinlet
Open the inlet
Measured value SA
> Reference value?
Measured value SA
after 2 seconds
> Reference value?
Measured value SA
during 300 seconds
< Reference value?
1 [W]
2 [W]
3 [R]
4 [R]