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Parker VRD350 Series User Manual

Parker VRD350 Series
44 pages
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Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Gutenbergstr. 38
41564 Kaarst, Germany
Tel.: +49-181 99 44 43 0
Fax: +49-2131-513-230
E-mail: infohcd@parker.com
Copyright © 2003, Parker Hannifin GmbH & Co. KG
Bulletin HY11-AL287-M1/UK
Installation Manual
Series VRD350, VRD355, ABG35S
Digital
Power Amplifier
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Parker VRD350 Series Specifications

General IconGeneral
BrandParker
ModelVRD350 Series
CategoryAmplifier
LanguageEnglish

Summary

1. Description and Design

1.2. Ordering Code

Explanation of the product code structure for selecting the correct amplifier.

1.3. Connection

Instructions for connecting the unit, including supply voltage and solenoid connections.

Wiring and Cabinet Design Notes

Detailed guidelines for wiring and electrical cabinet design to minimize interference.

2. Commissioning

2.2. Programming

Instructions for programming U-, S-, P-, and E-Values using the device's interface.

2.4. Diagnosis

Methods for diagnosing system status using test sockets and internal parameters.

2.5. Parameters

Overview and adjustment of S- and H-parameters for command signals and simulation.

P-Parameters

Adjustment of P-parameters for matching amplifier to valve or drive characteristics.

3. Function

3.1. Command Signals

Description of internal and external command signals and their additive properties.

3.10. Control Circuits

Activation and adjustment of feedback signals for closed loop control systems.

3.11. To Set Zero Point

Procedure for setting the zero point of the feedback transducer and gain.

3.12. Controller Parameters

Setting controller parameters like Kp, Ki, Kd, and T-portion for stable control.

External Closed Loop Operation

Details on external closed loop operation and safety function activation.

Safety Function Sequence

Step-by-step sequence for operating with the active safety function.

External Control: Pressure Control

Guidelines for pressure control using external sensors and proper scaling.

Remote Loop Control

Operation of remote loop control, including comparator and ramp reset input.

3.13. Programmable Comparator Function

Functionality of comparators, window settings, and output delays.

4. Operating and Error Messages

4.3. Malfunction and Error Messages

Monitoring of output stages, error signaling, and fault clearing procedures.

5. Terminals on Rear Connector

Pinout description for the rear connector, detailing signals and functions.

6. Parameter List

7. Wiring Diagrams

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