1126800 SmartPAC 2 with WPC Integration
Page 64 Chapter 2 Installing SmartPAC 2 and WPC
Auxiliary Outputs (Optional)
DANGER!
NON-SAFETY OUTPUTS USED FOR SAFETY FUNCTIONS
Use auxiliary outputs 1, 2 and 3 for non-safety functions only. They cannot protect
personnel from a moving hazard. You can use them for convenience in automation.
Failure to comply with these instructions will result in death or serious injury.
Wiring Auxiliary 1 Output (Optional)
The WPC provides an output called Auxiliary 1 (pin #28) which, when connected to a user-
supplied control relay, can be used to stop auxiliary equipment such as scrap choppers,
conveyors, etc. when the press stops. Additionally, the N/C contacts of the relay can be used
to illuminate a message beacon on the press during a fault condition. WPC switch #8 controls
how the Auxiliary 1 output operates (see descriptions below). For information on setting the
switch, refer to instructions for setting WPC switches using Press Options, page 242 in
chapter 4. Also see Figure 3 at the end of this manual for wiring.
Aux 1 Response to Interrupted Stroke – Setting Switch #8
NOTICE
If you want Auxiliary Output 1 to stay ON while you are inching the press during an
Interrupted stroke, set Switch #8 to CLOSED. See page 364 for more information
about Interrupted Stroke.
Auxiliary 1 is normally "ON" and turns "OFF" when any of the following conditions occur:
• an error number is displayed (fault condition exists);
• an E-Stop string is open or the Shadow light curtain has been interrupted while the
press is running
OR
• an Interrupted Stroke condition occurs and Switch #8 is OPEN.
(In Inch mode, you can run a complete stroke without causing an Interrupted Stroke.
Interrupted stroke is caused only when you release your hands from the run/inch
buttons in the middle of the stroke. If you inch the entire stroke without releasing
your hands, no Interrupted stroke is caused.) See table below for Switch # 8 Settings.
Switch # 8
Auxiliary Output 1
Response to Interrupted Stroke Condition
OPEN Turns off
CLOSED
Stays on if there is no fault condition (error code
displayed) or E-stop string open
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