4
Caution
Please refer to the note of caution on the margin below when doing the dielectric breakdown test and
megger test (measurement of the insulation resistance by the megohmmeter).
The controller breaks down when making a mistake.
Please do not do an operation such as switching of the displayed data or setting of the function etc. after
power supply OFF (during the period from power supply OFF to LED turning off).
When the subsequent power supply is turned on, it is likely to stop with Er2.
There is a distinction between the ground
phase and non-ground phase in the power supply. Please
confirm the earth phase side of the power supply, and connect controller's specified terminal to the earth
phase side. (Refer to P.12).
There is a possibility of causing a fire when the wiring is grounded.
Please install the leak breaker or the leak detector on the primary side of power supply of the controller
for the ground fault protection. Especially, please install it surely when it is not possible to connect it to the
ground phase.
There is a possibility of causing a fire when the wiring is grounded.
Surely connect the earth clip of the welding machine to the bowl when welding to the bowl. An incorrect
connection of the earth for the welding may burn the earth cable that connects the main body and the
controller, and fears such as electric shock, leaks, and the burn of the controller exist.
Please don’t conduct the welding work without turning off the power supply or the main breaker on the
primary side of the controller. There is a possibility of causing damage of the controller.
Please select and use an appropriate cable according to the voltage used, the current, and the
environment.
There is a fear of a leak or a fire when a wrong cable is used.
It doesn't stop immediately even if the power is cut off. Moreover, the run/stop key is effective only when
the function is set. Therefore, when you urgently stop the machine when the driving is controlled from the
outside, please stop it by using the external control signal.
Please set the F/V curve and the current rating before driving the main body.
When making a mistake in the setting, the magnet might be damaged by firing.
Please be sure that wiring for vibration sensor, that is an option part, is free from noise. If noise gets in,
it may be malfunctioning or vibration amplitude may become large suddenly.
Take care of pulling the wiring around and cables used etc. (Refer to P.14~15)
Be sure not to install or drive a damaged controller or a controller which is lack in parts.
There is a fear of an injury.
The noise is generated from the controller or wiring and equipments connected to the controller. Please
take care that neither a peripheral equipment nor the sensor will malfunction. There is a fear of an
accident.
*
Note: Please execute the dielectric breakdown test with AC1500V or less between AC line and the earth, and
DC500V or less between DC line and the earth. The leakage of current shall be 10mA or less. Moreover,
during the test, the high pressure is charged in the internal capacitor. Be careful enough so as not to get an
electric shock.