Start and stop
Use the buttons to start and stop the pump.Refer to
.
Note:
Standby
Operation at reduced speed will further improve tip seal and bearing service
life. Vacuum performance will be reduced when operating at standby speed.
Push the standby button to select the standby mode. The pump will initially
run at factory default standby speed (75% of full speed).
The Standby button must be pressed to return to normal run speed.
Auto run 1-phase pump
The auto‑run setting congures the pump to start at power‑up without any
customer intervention. This parameter is customer congurable using the
START/STOP buttons. Holding down either the START or STOP button, for
more than eightseconds, will enable or disable the auto‑run setting. The
status of the auto‑run setting is visible via the auto‑run LED.
The pump can be stopped using either manual or parallel control modes
while in auto‑run.
7.3Interface 1-phase pump
7.3.1Digital I/O
The pumps have a 15-pin D-Sub connector located on the user interface
panel. A suitable connector mating half must be used (not supplied) to
connect the pump to the customer control system.
Table 10. Logic interface description
Connector (pump side)
*
15-pin D-Sub (male)
Start and remote enable:
Enable contr
ol voltage: low (closed)
Disable contr
ol voltage: high (open)
0to0.8Vd.c.(I
out
= 0.55mAnominal)
4 ‑ 26.4 V d.c.
(internal pull up to 6.4 Vnominal)
Standby control input:
Enable control voltage: low (closed)
Disable control voltage: high (open)
0 to 0.8 V d.c. (l
OUT
= 0.3 mA nominal)
4 ‑ 26.4 V d.c.
(internal pull up to 3.2 V nominal)
Table 11. NORMAL status output:
Type Open collector transistor plus pull up resistor.
< Normal speed (default 80%) OFF (4.7 k pull up + diode to 12 V d.c.)
³ Normal speed ON (< 0.8 V d.c. sinking 10 mA)
Maximum current rating 10 mA
Maximum voltage rating 28.8 V d.c.
38 300668736_002_C7 - © Leybold
Operation
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