WPC 1000 User Manual
1125100
Initialization, Setup, and Checkout
3-21
If you have not installed light curtains and are using a Two-hand Control as a safety device,
you must mount the Two-hand Control at least the safety distance from the pinch point.
The safety distance is calculated using a formula that incorporates the Stopping Time of your
press as determined by the 90° stop-time test (see Determining the 90° Stop Time, page 3-18).
You must mount your light curtains slightly beyond this calculated distance to ensure that they
are able to stop the press before an operator’s hand reaches the hazardous area.
ANSI and OSHA Safety Distance Formulas
OSHA regulations and ANSI standards mandate that all machine safeguarding devices,
including Shadow light curtains and Two-hand controls, be located at the correct safety
distance from the pinch point. OSHA regulation 1910.217 governs the mounting of infrared
light curtains to protect mechanical power presses.
Wintriss, however, recommends that you use the formula contained in ANSI standard B11.1-
2009. This standard has been developed specifically for guarding of mechanical power
presses, and the formula contained in B11.1-2009 represents a new consensus on the proper
installation of light curtains. More variables are included in the ANSI than in the OSHA
formula, and the ANSI calculation is, therefore, more precise.
For complete information on OSHA regulation 1910.217 and ANSI standards B11.1-2009 and
B11.19-2003, see Appendix A.
OSHA and ANSI formulas are explained below. If you need additional assistance in
calculating the safety distance, call Wintriss Tech. Support.
PRESS MAY NOT STOP BEFORE OPERATOR REACHES PINCH POINT
• Calculate the safety distance carefully according to the instructions below.
• Mount your light curtain heads at least the safety distance from the hazardous area. If a light
curtain is too close to the hazard, there may not be enough time for the press to stop before the
operator’s hand (or another object) reaches the hazard.
• Mount your Two-hand Control, if you are using it as a safety device, at least the safety distance
from the hazardous area. If the Two-hand Control is too close to the hazard, there may not be
enough time for the press to stop before the operator’s hand (or another object) reaches the
hazard.
• Call Wintriss Tech. Support if you are not sure how to calculate the safety distance.
Failure to comply with these instructions will result in death or serious injury.
DANGER
!
Содержание WPC 1000
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