1771-QDC | Allen-Bradley PLC-5 Plastic Molding Module, Analog 4-In/4-Ou
1771-QDC | Allen-Bradley PLC-5 Plastic Molding Module, Analog 4-In/4-Ou
1771-QDC | Allen-Bradley PLC-5 Plastic Molding Module, Analog 4-In/4-Ou
    1771-QDC | Allen-Bradley PLC-5 Plastic Molding Module, Analog 4-In/4-Ou
1771-QDC | Allen-Bradley PLC-5 Plastic Molding Module, Analog 4-In/4-Ou

1771-QDC | Allen-Bradley PLC-5 Plastic Molding Module, Analog 4-In/4-Ou

Part #: 1771-QDC Manufactured by: Allen-Bradley
Regular price
$392.00
Sale price
$392.00
Regular price
8 in Stock
Condition: New-Surplus Original Box
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Product Overview
Allen-Bradley 1771-QDC PLC-5 Speciality I/O Plastic Molding Module for Open-loop/closed-loop hydraulic servo control, 4 An...  Read more
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Warranty for Product #: 1771-QDC
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Product Description P/N: 1771-QDC

Description / Specifications

Description 

Allen Bradley PLC 5 Plastic Molding Module, 1 Slot, 2 ms Scan Auto Tune PID and Velocity Module Update Period, 1.2 Amperes Backplane Current.

 

Technical Specifications 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1771-QDC
Module Type Plastic Molding Module
Inputs 4 Analog Inputs
Outputs 4 Analog Outputs
Slots 1 Slot
Module Update Period 2 ms Scan Auto Tune PID and Velocity
Backplane Current 1.2 Amperes
Wiring Arm 1771-WF
Frequency 47-63 Hertz
Fuse 3 Amperes, 250 Volts, Normal-Blow
Cabling 1771-PSCC Remote 5.5 ft
Location Stand-Alone
Dimensions 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)

  

 

Information About 1771-QDC

The Allen-Bradley 1771-QDC Plastic Molding Module is a special process module that controls the injecting, clamping, and ejecting phases of the injection molding machine. The 1771-QDC can be placed in any single I/O slot in the 1771 I/O axis. The smart plastic molding module carries out open or closed controls on the injection molding machine and it is adjustable to most hydraulic configurations. This module compensates automatically for variations of hydraulic characteristics on the printing press without user intervention with the Allen-Bradley Response Compensation feature (ERC) feature. The ERC is an adaptive "learning" capability - the most sophisticated form of closed-loop process. The Allen-Bradley 1771-QDC is designed to accommodate a variety of injection molding processes.

The Allen-Bradley 1771-QDC comes with 4 analog inputs and 4 analog outputs. This module has an update time of 2 ms scan auto-tune PID and velocity. The 1771-QDC has one slot. The backplane current of this module is 1.2 A. The fuse of this module is 3 A, 250 V, and Normal-Blow. The dimension of this module is 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm). The operating temperature of this module is 32-140 °F. The nonoperating temperature of this module is -40-185 °F. If you keep this module in area that has a temperature above or below those temperatures, it will cause damage to the module. The relative humidity of this module is from 5-95% without condensation.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1771-QDC
Question: What is the Allen-Bradley 1771-QDC used for?
Date Update:28/05/2025
Answer:

The 1771-QDC is a specialized Plastic Molding Module designed for controlling the injection, clamping, and ejecting phases of an injection molding machine. It is suitable for both open- and closed-loop hydraulic systems. The module uses adaptive control through the ERC (Enhanced Response Compensation) system, which automatically adjusts for variations in hydraulic behavior. This allows for precise and consistent molding operations without manual recalibration.

Question: How many inputs and outputs does the 1771-QDC have?
Date Update:28/05/2025
Answer:

The 1771-QDC is equipped with 4 analog inputs and 4 analog outputs, providing high-resolution monitoring and control. These inputs and outputs are used to interact with sensors and actuators in the injection molding process. They allow real-time feedback and control to maintain consistent process parameters.

Question: What are the environmental operating limits?
Date Update:28/05/2025
Answer:

The 1771-QDC operates in temperatures from 32°F to 140°F (0°C to 60°C) and can be stored in environments ranging from -40°F to 185°F (-40°C to 85°C). It supports relative humidity from 5% to 95% non-condensing. Staying within these ranges ensures long-term reliability and performance.

Question: What is ERC (Enhanced Response Compensation) in this module?
Date Update:28/05/2025
Answer:

ERC is an adaptive learning control feature that continuously monitors hydraulic performance and adjusts control parameters in real time. It eliminates the need for manual adjustments as hydraulic system characteristics change due to temperature or wear. ERC allows the 1771-QDC to maintain optimal control automatically.

Question: Is the 1771-QDC still being manufactured?
Date Update:28/05/2025
Answer:

The 1771-QDC is part of the legacy PLC-5 product family, which is no longer actively promoted by Rockwell Automation. While it may still be available as surplus or refurbished stock, customers are encouraged to migrate to ControlLogix or CompactLogix platforms for long-term support and availability.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

Allen Bradley PLC 5 Plastic Molding Module, 1 Slot, 2 ms Scan Auto Tune PID and Velocity Module Update Period, 1.2 Amperes Backplane Current.

 

Technical Specifications 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1771-QDC
Module Type Plastic Molding Module
Inputs 4 Analog Inputs
Outputs 4 Analog Outputs
Slots 1 Slot
Module Update Period 2 ms Scan Auto Tune PID and Velocity
Backplane Current 1.2 Amperes
Wiring Arm 1771-WF
Frequency 47-63 Hertz
Fuse 3 Amperes, 250 Volts, Normal-Blow
Cabling 1771-PSCC Remote 5.5 ft
Location Stand-Alone
Dimensions 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)

  

 

Information About 1771-QDC

The Allen-Bradley 1771-QDC Plastic Molding Module is a special process module that controls the injecting, clamping, and ejecting phases of the injection molding machine. The 1771-QDC can be placed in any single I/O slot in the 1771 I/O axis. The smart plastic molding module carries out open or closed controls on the injection molding machine and it is adjustable to most hydraulic configurations. This module compensates automatically for variations of hydraulic characteristics on the printing press without user intervention with the Allen-Bradley Response Compensation feature (ERC) feature. The ERC is an adaptive "learning" capability - the most sophisticated form of closed-loop process. The Allen-Bradley 1771-QDC is designed to accommodate a variety of injection molding processes.

The Allen-Bradley 1771-QDC comes with 4 analog inputs and 4 analog outputs. This module has an update time of 2 ms scan auto-tune PID and velocity. The 1771-QDC has one slot. The backplane current of this module is 1.2 A. The fuse of this module is 3 A, 250 V, and Normal-Blow. The dimension of this module is 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm). The operating temperature of this module is 32-140 °F. The nonoperating temperature of this module is -40-185 °F. If you keep this module in area that has a temperature above or below those temperatures, it will cause damage to the module. The relative humidity of this module is from 5-95% without condensation.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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