Description.and.features; Description.and.features; General.description; Features - EBRO ARMATUREN EP 501 C Operating Instructions Manual

Typ EP 501
Description of System
6. DESCRIPTION AND FEATURES
6.1. General description
The positioner Type EP 501 / process controller Type EP 501 C is a digital, electro-pneumatic positioner for
pneumatically actuated continuous valves. The device incorporates the main function groups
- Position sensor
- Electro-pneumatic control system
- Microprocessor electronics
The position sensor measures the current positions of the continuous valve.
The microprocessor electronics continuously compare the current position (actual value) with a set-point position
value specified via the standard signal input and supplies the result to the positioner/process controller.
If there is a control difference, the electro-pneumatic control system corrects the actual position accordingly.
6.1.1.

Features

• Models
- Positioner (positioner) Type EP 501
- Process controller with integrated positioner, Type EP 501 C.
• Position.sensors.
- Intern high resolution conductive plastic potentiometer or
- Extern non-contact, non-wearing position sensor (remote).
• Microprocessor-controlled.electronics
for signal processing, control and valve control.
• Operating.module.
Operation of the device is controlled by four keys. The 128 x 64 dot matrix graphics display enables you to
display the set-point or actual value and to configure and parameterize via menu functions.
• Control.system.
The control system consists of 2 solenoid valves and 4 diaphragm reinforcers. In single-acting actuators the
working connection 2 must be sealed with a threaded plug.
• Feedback.(optional).
The feedback is implemented either via 2 proximity switches (initiators), via binary outputs or via an output
(4 – 20 mA / 0 – 10 V).
When the valve reaches an upper or lower position, this position can be relayed e.g. to a PLC via binary outputs.
The operator can change the initiators or limit positions via control lugs.
• Pneumatic.interfaces.
Internal thread G1/4"
• Electrical.interfaces.
Circular plug-in connector or cable gland
• Housing.
Plastic-coated aluminium housing with hinged cover and captive screws.
• Mounting.
On rotary actuator according to VDI/VDE 3845.
• Optional.
Remote version for DIN rail mounting or for mounting bracket
english
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