ABB CI545V01 3BUP001191R1 Pulse output card

The swivel angle and pressure control as well as the power limitation of the A4VS… variable displacement pump are effected by an electrically controlled proportional valve (1). Via the actuating piston (2) of the pump, this valve determines the position of the swash plate (3). If the pump does not rotate, in case of depressurized high-pressure and actuating system and if enable is not operated, the swash plate is held in the "Zero" swivel angle position by the spring centering. The position of the swash plate is determined by an inductive position transducer (4), the actual pressure value is recorded by a pressure transducer. Both actual values are supplied to the VT-VPCD control electronics and linked with each other by the software.

The actual power value is calculated

 from the product of actual pressure value and actual swivel angle value. The controller software ensures by means of a minimum value generator that the controller corresponding to the working point is always active. In the static condition (i.e. swivel angle command value equals actual swivel angle value, power command value equals actual power value or pressure command value equals actual pressure value) the valve control spool is in central position. If the superior controllers demand e.g. an increase in the swivel angle (corresponds to an increase in the flow), the valve control spool must be deflected out of the central position until the swivel angle has reached the required value.

The sectional drawing 

shows the A4VS… variable displacement pump with HS4 control; the proportional valve (1) is controlled using the VT-VPCD control electronics. Notice for the HS4 control: With de-energized proportional valve and pump with clockwise rotation and if the actuating pressure is available, the pump swivels to swivel angle α = 0 (A4VSO design) or α = –100% (A4VSG design)

Company introduction

Temporal Ming sheng automation equipment co., LTD. Was established in April 02, 2021, registered jiujiang ruichang city in jiangxi province, east yi road no. 23 lake farmers 401 mall, the legal representative person Zhou Zuochen.

[Main Products]

Main products: PLC and DCS system spare parts modules of world famous brands

①Allen-Bradley 1756、1746、1747、1771、1785

②Schneider 140 Series PLC module

③General electric GE

IC693 IC697 IC698 Series PLC module

DS200 DS3800 DS215 IS200 IS215 IS220 Series gas turbine module

VMIVME Control module of series

④Bently：3500 series cards 3500/22M、3500/15、3500/92 And other products

⑤ICS TRIPLEX

⑥ABB Robots. FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、Panasonic Robots、MOTOMAN Robots。

⑦EMERSON：Spare parts for OVATION system, WDPF system and MAX1000 system.

⑧ Invensys Foxboro: I/A Series system, FBM (field input/output module) sequential control, ladder logic control, accident recall processing, digital analog conversion, input/output signal processing, data communication and processing, etc. Invensys Triconex: redundant fault-tolerant control system, Zui modern fault-tolerant controller based on triple module redundancy (TMR) structure.

⑨Woodward：505 series governor 9907-164 And other products

⑩Bosch Rexroth：Indramat，I/O module,PLC CPU,Motors, drives and other products. 

◆Motorola：MVME 162、MVME 167、MVME1772、MVME177and other products.