omron — Emergency Shutoff Input Function

4-2 Function Mode Inputting EMR to the digital input lets the motor go into "Emergency Shutoff" status (or free-run status). This status continues while EMR is turned on or until a reset signal is input. To use the Inverter to control the mechanical brake (used for cranes, etc.), you need to connect the safety output of the external safety relay to the brake control circuit in series. Note 1: For the signal lines for the safety relay and emergency shutoff input, use shielded coaxial cables with 2.8 mm or less in diameter and 2 m or less in length. The shield must be grounded. Note 2: All inductor parts such as the relay and contactor must have overvoltage protection circuits.

4 With switch S8 turned on, multi-function input S3 is automatically allocated to the emergency shutoff signal EMR input terminal, and S4 to the reset signal input terminal. In this case, EMR is allocated to function code C003, and reset (RS) to C004 automatically, and you cannot change these parameters manually. The following table shows the status of switch S8 and the allocation of the multi-function input. Functions In short, when switch S8 is turned on, input terminal S5 automatically switches to "No function allocated" status. To allocate a function to terminal S5 in this status, use the function mode.

If switch S8 is turned off later, input terminal S3 switches to "No function allocated" status. To allocate a function, again use the function mode. You can reset Emergency Shutoff status only via the dedicated input terminal (terminal S4 in the above table). The STOP/RESET button on the Digital Operator cannot be used for resetting Emergency Shutoff status. * When switch S8 is ON, the EMR function is forcibly set to NC contact, and the RS function to NO contact.(Parameters C013 and C014 are ignored) 4-46 Multi-function input terminal No.

Emergency shutoff selector S8 S8 = OFF (Default) S8 = OFF → ON S8 = ON → OFF Status 1 2 3 1 FW FW FW 2 RV RV RV 3 CF1 EMR * (only for emergency shutoff) No function allocated 4 CF2 RS * (only for emergency shutoff reset) RS (normal reset) 5 (also used for PTC) RS No function allocated No function allocated