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Valve Control Unit C-TOP-1721

Donjoy Valve Control Unit C-TOP-1721 is a straight-stroke pneumatic valve control unit designed for valve process control. It‘’s compatible with most PLC (programmable logic controller) automation systems with digital communication or bus communication (AS- I BUS). Including position feedback output, three-segment LED display, anti-leak function, valve opening and closing control, etc., It used to control all types of process valves. It can be installed on various pneumatic valves, e.g. pneumatic butterfly valves, ball valves, diaphragm valves, angle seat valves, globe valves, reversing valves, mixing proof valves, etc.

Details about Valve Control Unit C-TOP-1721

Specification

Communication support

AS-I-BUS

Input

PNP DC 24V

Output

PNP DC 24V & 4-20mA

Operation

automatic & manual

Power supply

DC 24V ± 10%

Air pressure

5.0-7.0Bar (suggest)

Protect class

IP67

Certification

EU ATEX explosion-proof II 3 G Ex ic IIC T6 Gc

Valve Control Unit C-TOP-1721 description:

Donjoy Valve Control Unit C-TOP-1721 is a straight-stroke pneumatic valve control unit designed for valve process control. It‘’s compatible with most PLC (programmable logic controller) automation systems with digital communication or bus communication (AS- I BUS). Including position feedback output, three-segment LED display, anti-leak function, valve opening and closing control, etc., It used to control all types of process valves. It can be installed on various pneumatic valves, e.g. pneumatic butterfly valves, ball valves, diaphragm valves, angle seat valves, globe valves, reversing valves, mixing proof valves, etc.

 

Valve Control Unit C TOP 1721

Intelligent Valve Positioner Specification

Control input: PNP DC 24V
Feedback Output : PNP DC 24V & 4-20mA
Power supply: DC24V ± 10%
Bus communication: AS-I-BUS
Accuracy: repeat positioning accuracy ≤ 0.5mm;
Setting: One-button auto-tuning function
Operating mode: automatic & manual
Leak prevention diagnostic function
Display: three-segment lamp colour
Open: green / red
Close: red / green
Middle position: yellow, suitable for anti-mix valve
Range: 0-60mm

Valve Control Unit C TOP 1721 draw

Valve Control Unit Feature

  • Support AS-I Bus communication version 3.0, control maximum of 62 units
  • Self-adjustment valve position
  • Support manual or automatic operation

Valve Control Unit Working Principles

C-TOP is a head controller, incorporates signal sending and command devices to monitor all the process valves.

Feature as below:

  • Controlled by the pneumatic or electrical actuator.
  • Position indicator with signal feedback
  • The control head can be installed with pneumatic valves. It receives the signal from control board or PLC. So as to operate and send a signal to the valves. In addition, there is three LED signal indicator in the C-TOP box. Which indicate the status of the valves.
  • Green light: open
  • RED light: Close
  • Yellow: valve is operating in the third position

AS-I design and feature

Connecting sensors with solenoid valve(actuator) easily, fast economically by AS-I bus-mastering. Since cables are largely decreased, installation and start-up become more convenient. Besides, the start time is shortened, and some hidden troubles in the installation can be avoided.

Parts are the same as standard C-TOP. The only changed part is the built-in card, AS-I insulation replacement connector and the cable connector itself.

 

Valve Control Unit Operation

Valve Control Unit C TOP 1721 operation

 

 

Valve Control Unit Configuration

Valve Control Unit C TOP 1721 configuration

 

Frequency Ask Question

Please firstly leave message below for product you need and requirement,I will send you quotaion sheet,then choose the transportation way and check cost,we will send you Proforma invoice for confirm,at last make the payment and we will ship the goods to you.

Delivery time depends on quantity and type of products,for valve and pipe fittings regular is about 7-20days. For pump regular is about 15-25days.

For small amount we require 100% before production.For big amount,regularly T/T 30% deposit, 70% before shipment.

By Bank T/T, L/C, By Alibaba Assurance Order accept Credit Card VISA, Mastercard, E-checking, and we could’t accept Paypal.

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