7–4 Set Up or Simulate Rotary Cam Limit Switches
Publication
65566.5.1 - October 1996
If using rotary cam limit switches, follow these steps:
1.Set up the cam angles for each RCLS switch assembly as described
above. Use on/off settings recommended by the press manufacturer.
Important: Mount these assemblies on opposite ends of the crankshaft
that drives the slide so a mismatch will occur if the crankshaft breaks.
2.Wire one assembly to the 1771-ID16 input module in module group 2,
chassis A. Repeat for chassis B. Refer to Wiring Drawings, sheet 6.
3.The ladder logic for RCLS is included in the clutch/brake code,
stored in protected memory.
Some applications combine one RCLS assembly with one resolver.
If this applies to your application, go to the next section to set up the
resolver. If not using resolvers, ignore the remainder of this chapter
because resolvers do not apply to your application.
If using rotary cam limit switches, follow these steps:
•AMCI resolver connected to an AMCI interface module (Figure 7.3)
•NSD resolver, decoder, and 1771-IBD input module (Figure 7.4)
Follow these steps as applicable:
1.Install resolvers, one on each end of the crankshaft that drives the
slide, so they can detect crankshaft breakage. The same applies
to a resolver-RCLS combination. Refer to installation
instructions provided by the resolver manufacturer.
2.Install a resolver input module into module group 0 and/or 1 of an
I/O chassis. Use module group 0 for a 1-slot input module, or
module groups 0 and 1 for a 2-slot input module.
If using a pair of resolvers, repeat for the other I/O chassis. Refer
to installation instructions provided by the manufacturer of the
resolver input module.
3.Wire the resolver, converter module (if applicable), and input
module for the respective I/O chassis. Refer to wiring instructions
provided by the manufacturer.
Setup If Using Rotary Cam
Limit Switches
(omit if using only resolvers)
Setup If Using Resolvers
(omit if using only RCLSs)
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