Page 101 - Parker - Vacuum products

Catalog 0802-E Vacuum Generators
System Logic CEK Emergency Stop Vacuum Generators

CEK - System logic

Idle

Vacuum ON Command
from System Controls

B
Vacuum Begins
Vacuum
Mode
Continues

Yes Maximum No Generator Selection
Setting Reached
(H-1)

Air Conservation Begins MCA, CV, CV-CK
Output 1 On Command Yes
Check Valve Maintains Vac “Off” Blow “On”
Vacuum Level CHF
No

Emergency Stop MC22
Yes Is Vacuum Level System
Maintained? To Idle
Vacuum Level MC72
Restored To No
Maximum Setting Emergency Stop
(H-1) Sensor Detects System
Hysteresis Level Vacuum Maintained CEK
Reached
CVXCEK
(H-1) minus (h-1)

MPS-23
CEK - Emergency Stop
Operating System (EOS)
The Emergency Stop Operating System is designed to maintain The chart below illustrates the state of operation in different MVS-201
the last state of operation when an emergency stop or power modes.
failure occurs.
Generator
Modes Vacuum On Vacuum Off Blow-Off EOS Accessories
Air-Economizing between Blow-Off On
Normal Conditions Idle EOS Off
18-16 inHg Blow-Off Idle
Vacuum On Blow-Off
On or Idle Glossary
Emergency Stop,
Power Failure Idle EOS On

Vacuum On Idle
Vacuum On
Restore Power Air-Economizing Idle Idle EOS Off
Function Resumes

B31 Parker Hannifin Corporation
Pneumatic Division
Richland, Michigan
www.parker.com/pneumatics