15
Typ EP 501
Description of System
7.
STRUCTURE
The positioner Type EP 501 and process controller Type EP 501 C consist of the micro-processor controlled elec-
tronics, the position sensor and the control system.
The device is designed using three-wire technology. Operation is controlled by four keys and a 128x64 dot matrix
graphics display.
The pneumatic control system for single-acting and double-acting actuators consists of 2 solenoid valves.
7.1.
Representation
Pressure-relief valve
Mechanical position indicator
Operating module with display and keys
Working connection 2
(connection: A2)
Supply pressure connection 1.4 – 7 bar
(connection: P)
Working connection 1
(connection: A1)
Air exhaust connection/air exhaust filter
Internal position sensor
Shaft for position sensor
Cable gland
Electronic module
Control system
Figure 1:
Structure, Type EP 501
english
