EBARA EV-S20, Инструкция по эксплуатации, Страница: 72 / 113

P.53
CAUTION Do not wire vacant pins.
CAUTION Apply a 12V DC power for input signals on the pump side. Do
not apply this voltage on the equipment side.
The output signals are generated from an open collector output.
Please use it by the equipment side, impressing the power
supply of DC4V to DC27V.
CAUTION Be sure to wire all signals with the correct polarity (SIG./COM.)
CAUTION When output signals are used to energize an inductive load
such as a relay, be sure to insert a diode (100V. 1A class) in
order to absorb the back electromotive force due to surge
currents.
4.3.3 Emergency Stop Switch Box (EMS Switch Box) – Optional
This pump has optional EMS Switch Box. Details of EMS Switch are shown as follows.
(1) Outline of function of EMS
EMS means Emergency Stop. When EMS switch is pushed and activated
for emergency, pump is stopped running. This EMS switch can also work
as “Emergency Off” which shut down pump power supply with additional
components to be prepared by users (see section 4 for detail).
(2) EMS System Flow
Fig. 4.8 System Flow
Tool
Motor Driver
Pump power supply
DRY PUMP
EMS
Dsub-25, 6-19Pin
(CN-Y)
PM10U
EBARA
CORPORATION