Get Safe, One Press at a Time

Still another benefit is the ability to identify potentially serious mechanical malfunctions early. This allows less costly preventive maintenance before a major power press breakdown and significant production interruption occurs.

An example of such a press control is the original Command Stamp unit, introduced in 2003. Installed on a 1960s vintage 80-ton Minster Press, the system was developed by Reflex Integration. It has been third-party verified to meet the CSA Z142-02 standard, which became mandatory in 2004.

More recently, after several requests from owners of  mechanical, brake and pneumatic presses, Reflex Integration has introduced a new Command Stamp Press Brake Control. This dual-channel controller is available for different applications and meets CSA Z142-02. It provides on-screen display of press position via limit switches or inputs from press brakes current CNC back gauge. Also, a fault message display and the status of press brake are indicated to the operator. The unit’s job-counter display also shows how many hits have been made, which run stations are active and how they are controlled. Operators can also view the status of press break inputs (e-stops, light curtains, etc.).

Specific to installation on Hydraulic Press Brakes, the Press Brake Control monitors hydraulic valves in accordance with Z142-02 and various operation modes available (run, inch and calibration) that allow for greater control of press brake position and speed. The unit also provides the capability to mute light curtains and use multiple run stations. Up to two run station controls allow two operators to control the press together safely.

When installed on Treadle Mechanical Press brakes, the Press Brake Control uses an encoder and proxy to determine press position and movement controlled by a monitored pneumatic valve. The Treadle pedal is also monitored and brake times are displayed on screen. Brake monitor fault and warning messages can indicate failing and worn out brakes and the unit provides full control of press speed throughout pressing cycle.

Nowadays, there are no excuses for not retrofitting presses to meet the CSA Z142-02 safety standard.
www.reflexintegration.com

Jeff Ashcroft (jeff@penmarautomation.com) is with Penmar Automation and can be reached at (905) 836-8103.