Ulvac UTM3400 Series, Instruction Manual

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6.7 Remote-control Connector
51
6
6.7
Remote-control Connector
6.7.1 S
pecification
Table 6-3 START/STOP According to Remote-control Signals
This turbo molecular pump is provided with
remote-control connector for connection with
remote operation, ALARM signals, etc. (Refer
to Fig. 6-2, Fig. 6-3, and Table 6-3)
For connection with this connector, cable
with shield is necessary. The shield of the
cable should be connected to case.
Fig.6-2 Remote-control Connector
Fig.6-3 Remote-control Circuit
例
Connection
method By momentary type
START/STOP switch
By alternate type switch
Wiring
connection
Control
Pump start by short-circuiting
(2) and (1).
Pump stop by opening
(3) and (1). Pump start, with the contact close or photo
transistor ON ((3) to (1) short-circuit).
Pump stop, with the contact open or photo
transistor OFF((3) to (1) open).
Electric
capacity
［
Contact
］
It is connected to +12 V circuit and subject to stable open-close of 5 VDC, 1 mA.
Voltage…30 VDC or more, Current…10mA or more
［
Photo transistor
］
Select a photo transistor with a collector-emitter voltage limit of 30 VDC and an on-
state collector current of 10 mA or more
Input rating Direct forward current 50 mA ; DC reverse voltage 5 V