Allen-Bradley ClutchBrake PLC-5 Series - Page 113

7–7Set Up or Simulate Rotary Cam Limit Switches
Publication 65566.5.1 - October 1996
Figure 7.6
Ladder
Logic to Guard Against Reversemotion Faults When Using Resolvers
| Store Resolver |
| Inputs |
| +–MOV––––––––––––––––– + |
+––––––––––––––––––––––––––––––––+ MOVE +––|
| | Source I:000 | |
| | 0 | |
| | Dest N155:0 | |
| | 0 | |
| +––––––––––––––––––––––+ |
| |
| TCam |
| B151 +–LIM––––––––––––––––––––+ B151 |
+–––] [–––+ LIMIT TEST (CIR) +––––––––––+––––( )––––+
| 00 | Low Limit 165 | | 00 |
| | | | |
| | Test N155:0 | | |
| | | | |
| | High Limit 350 | | |
| +––––––––––––––––––––––––+ | |
| B151 +–LIM––––––––––––––––––––+ | |
+–––]/[–––+ LIMIT TEST (CIR) +––––––––––+ |
| 00 | Low Limit 170 | |
| | | |
| | Test N155:0 | |
| | | |
| | High Limit 345 | |
| +––––––––––––––––––––––––+ |
| |
| BCam |
| B151 +–LIM––––––––––––––––––––+ B151 |
+–––] [–––+ LIMIT TEST (CIR) +––––––––––+––––( )––––+
| 01 | Low Limit 5 | | 01 |
| | | | |
| | Test N155:0 | | |
| | | | |
| | High Limit 190 | | |
| +––––––––––––––––––––––––+ | |
| B151 +–LIM––––––––––––––––––––+ | |
+–––]/[–––+ LIMIT TEST (CIR) +––––––––––+ |
| 01 | Low Limit 10 | |
| | | |
| | Test N155:0 | |
| | | |
| | High Limit 185 | |
| +––––––––––––––––––––––––+ |
| |
| ACam |
| B151 +–LIM––––––––––––––––––––+ B151 |
+–––] [–––+ LIMIT TEST (CIR) +––––––––––+––––( )––––+
| 02 | Low Limit 275 | | 02 |
| | | | |
| | Test N155:0 | | |
| | | | |
| | High Limit 240 | | |
| +––––––––––––––––––––––––+ | |
| B151 +–LIM––––––––––––––––––––+ | |
+–––]/[–––+ LIMIT TEST (CIR) +––––––––––+ |
| 02 | Low Limit 280 | |
| | | |
| | Test N155:0 | |
| | | |
| | High Limit 235 | |
| +––––––––––––––––––––––––+ |