美国parker液压教程 (26)

Parker Hannifin GmbH Hydraulic Controls Division Gutenbergstr. 38

41564 Kaarst, Germany Tel.:(+) 2131-513-0 Fax:(+) 2131-513-230Bulletin 3209-M1/UK

Installation Manual Series TDL_H

Design³32 Proportional

Throttle Valve

Contents

1. Introduction (4)

Characteristics (5)

2. Technical Data (5)

Parameters (5)

Block Diagram Valve Electronics (6)

Wiring (6)

EMC (6)

3. Installation (7)

Main Connector (7)

Wiring (7)

4. Switching Circuitry (8)

Block Diagram (8)

Command Input (9)

Diagnostic Output (9)

Position Control (9)

Power Stage (10)

Enable Signal Input (10)

Voltage Monitor (11)

5. Measuring Points (11)

Main (Central) Connector (12)

Diagnostic Sockets (12)

6. Commissioning (12)

Ambient Conditions (12)

Input Circuitry (12)

Enable Signal (13)

Zero Position (13)

7. Service (14)

Test Unit (14)

Trouble Shooting Diagram (15)

8. Ordering Code (16)

1. Introduction

Parker TDL_H proportional throttle valves are equipped with high dynamically powered solenoid actuator and on-board electronics. The valve can be linked to any signal control system (i.e. PLC) by only one central plug and wiring connection.

Characteristics

The valve electronics described in this documen-tation relates to the control of high response throttle valves with solenoids, series TDL_H. The electronics is an integrad part of the valve, unifying various functions necessary for the optimum us-•

Provides a specially designed output power stage for high dynamic control of the soleno-ids

•Constant current control of the solenoids •Overriding pilot and main stage stroke control •Specially developed position transducer for high resolution high dynamic control •Differential input stage

•Diagnostic output for valve stroke •

Enable signal for power output stage

•

Low voltage monitoring of the supply voltage with indicating lights giving operation status (only for size 10 - pilot)

•Standard central plug connection, DIN 43563•Spindle operated trimpots for zero setting equalising

•All electronics completely interchangeable •

Full conformity to the European EMC standards

Electrical

Supply voltage

[VDC]22 (28)

Ripple max. 5% eff.;noninductive Switch-on current

[A] 4.0 for 10mS (typ.)Current consumption max.

[A] 2.0 permanent

Fuse, to be provided externally [A]

2.5 medium time lag

Input signal [V]0 ... ±10 smoothed, noninductive*optional 0 ... ±20mA*

Input impedance [kOhm]200 (at current input 500Ohm)Enable input [VDC]

5...28 / 10mA Hysteresis

< 1%Protection standard I P 54

Connection cable [mm 2]7 x AWG17 shielded Cable length max.[m]

50

Hydraulics Hydraulic fluid Mineral oil or HFC

Viskosity

[mm ²/s]

20...100Fluid temperature max.[°C]

max. +60

General Orientation

optional, Y has always to be tied directly & separately to tank Ambient temperature range [°C]

0 ... +60

2.Technical Data Parameters

age of the valve and leading to an integrated solution. The result is an outstanding dynamic response, permitting the valve to be used in closed loop controls. The integrated electronics carry out the following functions:*max. 30VDC against Pin G (ground)

All the information have been carefully selected and assembled and represents the actual knowledge.