Manual Control Pendant BasicsAdept SmartController User’s Guide, Rev. E 127MCP-4 CompatibilityThe MCP-4 has a dual-channel (four-wire) E-Stop circuit where the switch contacts are inparallel. This is different from the MCP III where the switch contacts are in series. Thisdifference affects how the MCP-4 is used in various Adept systems. Table C-1 covers thecompatibility status for the MCP-4.Table C-1. MCP-4 Compatibility GuidelinesIn Adept systems rated for Category 1 SafetyIn MV Controller-basedsystems with CIP2, CIP1, orVFPMCP-4 is compatible, no issuesIn SmartController-basedsystemsIn systems that are shipped from the factory with an MCP-4, there areno compatibility issues.If you are installing an MCP-4 in a system that originally used an MCPIII, then Adept recommends removing 10356-10370, CIM TO MCPIIIAdapter for reliability, but not for compliance reasons.In Adept systems rated for Category 3 Safety (CE: Redundant Channel, RIA: Control Reliable)In MV Controller-basedsystems with CIP2 or CIP1To maintain a dual contact enable in CE Category 3 Emergency Stopsystems, remove jumper JP3 inside CIP.In MV Controller-basedsystems with VFP3MCP-4 not compatible. Cannot maintain a dual contact enable with theMCP-4, must use MCP III.In SmartController-basedsystemsIn systems that are shipped from the factory with an MCP-4, there areno compatibility issues.If you are installing an MCP-4 in a system that originally used an MCPIII, then you must remove 10356-10370, CIM TO MCPIII Adapter. Thismust be done for compliance reasons in order to maintain a dualcontact enable in CE Category 3 Emergency Stop systems.