HelmPak Press Control
7
Users Guide
SECTION 2:
CLUTCH / BRAKE SOFTWARE
The HelmPak Clutch/Brake Control System is a bundle of hardware, software, and
engineering documents designed to control the clutch and/or brake mechanism on a
mechanical stamping press that has a part-revolution friction clutch and/or brake. This
system uses two processors for clutch/brake control.
The clutch/brake control system is designed to signal brake wear by monitoring the brake
monitor cam (BCAM). Should it see the BCAM closed after a normal cycle stop has been
initiated and before the press comes to a top stop, it is designed to protect against press
restart.
System
I/O modules in both Clutch/Brake chassis are identical for clutch/brake control. If the
processor in one chassis detects a condition different from that detected by the other, its
control logic is designed to declare a fault and turn off all outputs to press valves. The
other processor is designed to follow suit. Dual processors control outputs to
clutch/brake valve.
Chapter 1
Clutch/Brake Modes:
The operator can select the mode of control system operation with the selector switch
located on a control panel.
Mode
Operation
Inch
Jog the press through successive parts of the cycle by pressing and
releasing the pair of INCH buttons. If INCH buttons are held, the press
will stop at the top of its stroke, if inch stop on top is enabled in the setup
menu.
Single-stroke
Run the press through one complete cycle by holding both RUN buttons
until completion of the down stroke.
Continuous
Run the press in a single on demand manner until stopped by a stop-on-
top command or until a fault is detected. The method to start the press is
a factory configured option where operator presses the CONTINUOUS
SETUP button and press both RUN buttons in all active stations within
five seconds.
POSITION MONITORING
•
The Helm-Pak Press control is configured with dual resolvers to monitor the position
of the press electronically. The control system monitors the rotational position of the
press.
