EBARA EV-S20 Instruction Manual page 73

(3) Operation control
(4) Example of System Flow diagram for EMO (Emergency OFF)
This EMS switch can also work as Emergency Off (EMO, Hardware
interlock to shut off the pump power supply) with additional components to
be prepared by users.
EMS
PM10U
・ Push EMS Button to stop dry pump
Push red EMS button (Alternate)
Motor Driver output is turned off and pump stops
6-19 pin at Dsub-25 pins (CN-Y) Connector : Close → Open
(See Figure 4.7 and Table 4.8)
The following alarm is shown on LCD controller.
ALARM:
EMERGENCY STOP
・ Release EMS
Check that pump can be operated and turn the button head to release lock.
Press the RESET button on the LCD controller, the pump to lift the
status of the ALARM.
Pump Side
Motor Driver
DRY PUMP
Fig. 4.9 Example, EMO System Flow
Customer's Side
Pump Power supply
CB
MC
CN-Y
Internal Pump Dry Contact is turned OFF
when EMS is activated (pushed).
Circuit Breaker
See Specification Table
for current value
Magnetic Contactor
See Specification Table
for current value
EBARA
CORPORATION
P.54