1128500
WPC 2000 User Manual
G-2
Glossary
control reliability
A regulation defined in ANSI B11.1-1988 and OSHA
1910.217 requiring that a single component failure in a clutch/
brake control circuit not prevent the normal stopping action of
the press, not create an unintended stroke, and not allow
initiation of a subsequent stroke until the failure has been
corrected.
crank angle clock
A ring of LEDs on the WPC 2000 optional display that shows
the angle of rotation of the press’s crankshaft.
depth penetration factor
A value used in the ANSI formula for calculating the safety
distance. The depth penetration factor is a measure of how far
an object, like an operator’s hand, can move through the light
curtain before the light curtain reacts.
dual diverse redundancy
A WPC 2000 feature in which both microprocessor systems
belong to different architectures, are programmed using
different programming languages, function independently of
one other, have separate power supplies, and provide different
information to the operator. Dual diverse redundancy provides
optimum clutch/brake control and operator safety.
Dual Safety Valve
The control-reliable device on the press that controls the flow
of air to the press’s clutch.
emergency stop
A signal sent to the press in response to a malfunction that
stops the press immediately. An Emergency Stop can be
initiated manually by the operator or automatically by WPC
2000 or external devices.
fault (error) message
An alphanumeric code that appears on the WPC 2000 display
when an error condition occurs.
hand-speed constant
A value used in the ANSI formula for calculating the safety
distance. The hand-speed constant is the distance one can
theoretically move one’s hand and arm in one second. OSHA
recommends a hand-speed constant of 63 inches-per-second.
interrupted stroke
A condition that occurs when the press has been Emergency-
stopped before the completion of the stroke by either the
operator or an automatic device for personnel or equipment
protection. During an interrupted stroke condition, the
Interrupted Stroke LED on the WPC 2000 display flashes.
lockout
A WPC 2000 function that prevents the press from being
restarted after clearing of fault messages that indicate serious
errors. The lockout condition is indicated by the lockout
message, which appears on the WPC 2000 display. Lockout
provides an added safety feature to the WPC 2000.
lockout message
A message (i.e., “Loc”) that appears on the WPC 2000 display
indicating that a serious error condition has occurred.
Summary of Contents for wpc 2000
Page 91: ...1128500 WPC 2000 User Manual 2 64 Installation ...
Page 191: ...1128500 WPC 2000 User Manual 5 22 Troubleshooting ...
Page 209: ...1128500 WPC 2000 User Manual A 18 Extracts from OSHA and ANSI ...
Page 225: ...1128500 WPC 2000 User Manual G 6 Glossary ...
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