Honeywell SmartPAC 2, User Manual, Page: 72 / 522

1126800 SmartPAC 2 with WPC Integration
Page 50 Chapter 2 Installing SmartPAC 2 and WPC
you are using light curtains, you do not need to calculate a specific safety distance for your
operator station.
Proper mounting of the light curtain eliminates the need to mount the operator station at a set
distance from the pinch point. That is because the light curtain now prevents access to the
pinch point. Remember this however:
You must not mount the operator station between the
light curtain and the pinch point. Mount the operator station where convenient following
the above guidelines.
Mounting the Operator Station if You Do Not Use Light Curtains
You must mount the operator station at least the correct safety distance away from the
hazardous area. This is required by OSHA regulation 1910.217, Section C–Safeguarding the
point of operation. The formula used for finding the correct distance is from the American
National Standards Institute (ANSI) standard B11.1–2001 (for more information, see
Appendix A).
Honeywell recommends the ANSI formula because it is more specific than the OSHA regulations. It
allows you to account for brake wear when calculating your press’s total stop time.
The OSHA formula is basically the same as the ANSI formula except it does not account for
brake wear. When using the OSHA formula, the Precision Metalforming Association (PMA)
recommends that you add additional time for brake wear as shown in the ANSI formula
found in Chapter 3. By not adding in this additional time, you may compromise operator
safety as the brake wears (for more information, see Appendix A).
Using Two Light Curtains on Your Press
Refer to the wiring schematics at the end of this manual to wire dual light curtains. See
Figure 4 (for Herion valve) or Figure 6 (for Ross valve), and Table A at the end of the
manual. Also, you will have to set option switch #6 in order to enable dual light curtains (see
page 246).
Connecting Other Wintriss Products to WPC
Later in this chapter you will connect SmartPAC 2 to the WPC. You can also connect stop
circuits of other products/monitors to WPC. To do so, follow the instructions in this section.
Before you wire, run the press in all modes of press operation — Inch, Single stroke, and
Continuous. Also make sure that the press has working top stop and emergency stop circuits.
Verification that the press operates and stops properly is extremely important because WPC
will control the Dual Safety Valve on the press. Do not forget to mark your electrical prints
where you wire in WPC.
When the stopping time is critical to your operation, as it is with die protection, be sure to
wire as follows. Whenever you have emergency stop circuits, wire them between terminals
#67 and #68 or between terminals #67 and #69 on the main processor board. For top stop