2-2 Wiring 2 Design „ Slide Switch (SW1) Settings The built-in slide switch is used to enable or disable the emergency shutoff function. (Factory Default: Disabled) * For the location of the slide switch, refer to (page 2-11). Emergency Shutoff Function (Factory Default: Disabled) •This function is intended to turn off the Inverter output (stop switching the main element) via only the multi-function input terminal of the hardware circuit without going through the CPU software. * This function stops switching of the main element.The circuit is not electrically turned off. While the power supply is ON, do not touch the Inverter terminals and power cable (e.g. motor cable).
Doing so may result in electric shock, injury or ground fault. •When this function is enabled, the multi-function input terminals S1 and S3 are exclusively used for this function. No other function can be allocated to these terminals. If another function has been allocated, it will automatically be disabled, and terminals S1 and S3 are changed to the emergency shutoff terminals. Function of multi-function input terminal S1 Reset signal (RS) / NO contact (Fixed) This signal is used to reset the Inverter, and to reset the emergency shutoff trip [ E37.* ].
Function of multi-function input terminal S3 Emergency shutoff signal (EMR) / NC contact (Fixed) This signal is used to turn off the Inverter output without using the built-in CPU. With this signal input, the Inverter activates an emergency shutoff trip [ E37. * ]. 2-9 Terminal symbol Terminal name Description Specifications Digital (contact) Relay output Status, alarm, etc. MA MB Relay output Select the desired functions from among 45 functions, and allocate them. SPDT contact output. By factory default, the relay output (MA, MB) contact selection (C036) is set at NC contact between MA-MC, and NO contact between MB- MC. Contact max.
capacity MA-MC 250 V AC, 2 A (Resistance) 0.2 A (Induction) MB-MC 250 V AC, 1 A (Resistance) 0.2 A (Induction) Contact min. capacity 100 V AC, 10 mA 5 V DC, 100 mA MC Relay output common Analog Analog input Sensor TH External thermistor input Terminal Connect an external thermistor to this terminal, to trip the Inverter when a temperature error occurs. The SC terminal functions as the common terminal. [Recommended thermistor characteristics] Allowable rated power: 100 mW min. Impedance at temperature error: 3 kΩ Temperature error detection level is adjustable between 0 and 9999 Ω.
Allowable input voltage range 0 to 8 V DC [Input circuit] 8 V DC 10 kΩ TH Thermistor 1 kΩ SC TH Thermistor SC 8 V DC 10 kΩ 1 kΩ