EBRO ARMATUREN EP100 - User Manual

Master Instruction
_____________________________________________________
D00002-C-04
EP100 Analog Positioner
The analog Positioner EP100 with analog input 4 to
20 mA is designed to operate pneumatic valve
actuators. It offers an easy adjustment by means of
switches and potentiometers. The modular
structure of the EP positioner series enables the
feasibility to re-fitt optional equipment (limit switch).
FEATURES
 Configuration by means of switches and
potentiometers
 Load 300 
 Low air consumption
 Angle range up to 95 degree
 Supply air pressure up to 6 bar (90 psig)
 Single acting or double acting
 Mechanical travel indicator
 Reverse polarity protection and interlock diode
 Attachment to rotary actuators according to
VDI/VDE 3845
 Failsafe position in case of failure of
electronics
 Protection class IP 65
 Additional equipments (compatible to EP200:
Integrated inductive limit switches,
independent of device electronics
 Accessories (compatible to EP200:
Gauge attachment for supply air and outputs
Booster relay
Repair and maintenance operations must be carried out by qualified personnel!
avrora-arm.ru
+7 (495) 956-62-18

Summary

Features

Method of Operation

General Operation

Provides a general overview of the EP100 positioner and its function with pneumatic valve actuators.

Block Diagram

Illustrates the functional components and signal flow within the EP100 analog positioner.

Detailed Operation

Explains how the EP100 processes input signals, controls pneumatic amplifiers, and measures actuator position.

Safety Requirements

Covers accident prevention, electrical safety, explosion protection, and EMC/CE compliance for the EP100.

Labels

Nameplate Example

Shows an example of the EP100 nameplate with serial number, supply, and input specifications.

Design

Pneumatic Accessories

Details pneumatic accessories like boosters and connection manifolds for the EP100 positioner.

Mounting to Rotary Actuators

Type of Mount

Explains how to mount the EP100 to rotary actuators according to VDI/VDE 3845 standards.

Positioner Preparation

Outlines steps for preparing the EP100 positioner, including setting failsafe position and actuator rotation.

Actuator Preparation

Details the preparation steps for the rotary actuator before attaching the EP100 positioner.

Positioner Mounting

Describes how to attach the EP100 positioner to the actuator using a bracket and screws.

Pneumatic Connections

Electrical Connection

Electrical Terminal Connections

Details the wiring connections to the EP100's screw terminals for input signals.

Start-Up

Start-Up General

Covers initial checks, prerequisites, and general steps before starting up the EP100 positioner.

Settings via Switches and Potentiometers

Explains how to use DIP switches and potentiometers for configuring the EP100's parameters.

Setting Feedback Shaft Rotation Direction

Guides setting the feedback shaft's rotation direction via switches for correct actuator response.

Setting Input Signal Range

Details how to configure the EP100 to accept various input signal ranges (4-20mA, split range).

Split Range Configuration

Explains configuring multiple positioners for sequential control of a valve stroke.

Setting Gain (G)

Describes adjusting the loop amplification (gain) using potentiometer P4 for stable control.

Setting Zero and Span

Guides setting the zero and span points of the actuator stroke using potentiometers P3 and P2.

Setting Damping (D)

Explains how to adjust damping using potentiometer P5 to influence dynamic behavior.

Setting Travel Indicator

Details how to set the mechanical travel indicator and select gear ratios.

Air Reducing Throttles

Describes the function and adjustment of air reducing throttles for output capacity control.

Basic Electronics Adjustment

Outlines the procedure for performing basic adjustments on the electronics unit.

Pneumatic Test

Explains how to perform a pneumatic test to check the positioner's system function.

Decommissioning

Diagnosis

Maintenance

Maintenance General

Provides general guidance on maintenance requirements and safety for the EP100 positioner.

Supply Filter Replacement

Details the procedure for replacing the air supply filter.

Electronics Unit Removal

Explains how to safely remove the electronics unit from the EP100 housing.

Positioner Conversion

Describes how to convert the EP100 between different positioner types by exchanging electronics.

Mechanical and Pneumatic Unit Replacement

Amplifier Replacement

Guides on replacing the pneumatic amplifier and associated O-rings for the EP100.

Preamplifier Replacement

Details the process for replacing the preamplifier and its O-rings.

IP Module Replacement

Explains how to replace the IP module, including O-rings.

Feedback Unit Replacement

Describes how to remove and install the feedback unit, including shaft and sensor.

Options

Limit Switch Features and Settings

Covers limit switch installation, functions, trigger points, and types (2-wire, 3-wire).

Position-Feedback Transmitter Operation

Details the 4-20mA transmitter, including setup, adjustments, and troubleshooting.

System Configuration with Control Units

Non-Intrinsically Safe Operation

Explains direct connection of the EP100 to a standard 4-20mA process control system.

Split Range System Configuration

Details system configuration for split range operation with multiple actuators.

Dimensions

EBRO ARMATUREN EP100 Specifications

General

Input Signal	4 - 20 mA
Protection Class	IP65
Type	Electropneumatic
Supply Air Pressure	1.4 - 7 bar
Output Pressure	0 - 100% of supply pressure
Ambient Temperature	-20°C to +80°C
Housing Material	Aluminum
Connections	G 1/4