The voltage of the input power source cannot be acquired when the fusing relay on the AC drive board is OFF, because the power supply for the IH inverter is cut off. After the fusing relay turns ON and the power supply is provided to the IH inverter, the voltage acquisition is started. Therefore, when an SC is generated, the maximum and minimum voltages of the input power source can be acquired from Period C as shown below.
*1 The fusing relay is turned on when one of the following operations is performed.
- The main power is turned ON.
- Any covers/doors are closed.
- The machine returns from the energy saver mode.
| Description | |
|---|---|
| Period A | When the SC is generated before the fusing relay turns ON, "2" is displayed for the maximum voltage (SP5-963-001 to 010) and the minimum voltage (SP5-964-001 to 010). |
| Period B | When the SC is generated during a period after the fusing relay turns ON and before the IH inverter acquires the voltage, "1" is displayed for the maximum voltage (SP5-963-001 to 010) and the minimum voltage (SP5-964-001 to 010). |
| Period C | When the SC is generated after the IH inverter starts acquiring the voltage, the machine can display the correct maximum voltage (SP5-963-001 to 010) and the correct minimum voltage (SP5-964-001 to 010). |