Press / Sheer Control

Unico’s Press / Shear Control PSC™ software module is engineered specifically for controlling press and shear applications. The program is embedded within the controller of a UNICO drive, eliminating the need for an external control rack. 

When used in conjunction with a programmable controller, the drive forms a powerful automation work cell that can either stand-alone or be easily integrated with other UNICO automation cells to build a complete control system. Embedded control reduces system complexity while taking full advantage of the exceptional performance, flexibility, and ease of use of UNICO drives.

Features

Programmable Speeds

The program provides four preset request speeds for use during automatic operation. The requested velocity is passed to the drive routine, which rate-limits the command velocity using the acceleration and deceleration time setups. The request velocity can also be supplied via a serial interface or an analog input.

Programmable Press Position Outputs

Eight programmable real-time outputs indicate discrete press positions, eliminating the need for mechanical cams. The outputs offer advance and retard delays based upon press speed. The press must be referenced to provide cam outputs.

Transducer/Transducerless Design

The control can operate with or without a feedback transducer. Typically, an incremental encoder is used for position and velocity feedback, although multiturn absolute encoders and single-turn resolvers are also supported.

Regeneration Limiting

A regeneration limiting feature prevents the overpowering of the dynamic braking resistors by limiting the power output during deceleration.

Regeneration Disable

A regenerative current disable feature allows the user to remove all regenerative or reverse currents when the drive is at speed.

Automatic Air Counterbalance

Adaptive current control lets the drive adapt its current limit to the energy needed during a press cycle. This reduces the magnitude of the current variations that result from an unbalanced press and varying load. The software provides a torque-equalizing method that can be used to determine when the torque between the up and down strokes is imbalanced. This can also minimize power consumption by providing an adjustment to counterbalance pressure.

Lube and Air Pressure Faults

The software can monitor critical air and lube flows, setting a warning to the operator or interrupting operation if a fault is detected.

Communications

A variety of communication protocols are supported for interfacing with a programmable controller or other devices. The specific protocols available depend upon the drive used. Refer to the appropriate 1100 or 2000 series drive brochure for details.

Programmability

The control can be customized to a specific installation using UEdit™, a powerful Windows-based programming tool that lets users add their own ladder logic and function block programming.

Inputs & Outputs

A variety of input/output functions are provided for integrating the press/shear control with external devices. The user can select the functions required by a given system and specify their corresponding hardware or serial I/O points.

Inputs Outputs
motor on motor on
fault reset no fault
jog forward no warning
jog reverse manual
fast stop auto
motion enable motion
auto forward motion
reference reverse motion
manual at zero velocity
acceleration 1 at request velocity
clutch engaged at maximum velocity
press up reference
press down cam 1
DC field on cam 2
motor thermal cam 3
motor blower cam 4
velocity select 0 cam 5
velocity select 1 cam 6
velocity select 2 cam 7
velocity select 3 cam 8
motor rms warning
inverter thermal warning

Specifications

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Unico Features

Specification

Input200 to 690 V AC, three-phase
Voltage50 / 60 Hz
Frequency> 99%
Power Factor< 5%
Isolation TransformerYes
Unico Features

Specification

Input200 to 690 V AC, three-phase
Voltage50 / 60 Hz
Frequency> 99%
Power Factor< 5%
Isolation TransformerYes
Unico Features

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Input 200 to 690 V AC, three-phase
Voltage 50 / 60 Hz
Frequency > 99%
Power Factor < 5%
Isolation Transformer Yes
Unico Features

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Input 200 to 690 V AC, three-phase
Voltage 50 / 60 Hz
Frequency > 99%
Power Factor < 5%
Isolation Transformer Yes

Block Diagrams

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Brochures

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Resources

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Application used for Automotive

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Battery

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Inverter

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Inverter

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Battery

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Inverter

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Battery

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Inverter

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Battery

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Inverter

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Battery

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Fuel Cell

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Frequently
Asked Questions

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