MELSERVO-J4

Harmony with Man Maintenance Function

Enhanced operating ease and drive stability

Ma i n t enance Func t i on t o Ach i eve TCO * Reduc t i on

* TCO : Total Cost of Ownership

Compliance with SEMI-F47

MELSERVO-J4 series servo amplifier complies with SEMI-F47 standard* corresponding to semiconductors and LCD manufacturing systems. (SEMI-F47 is not applicable to 1-phase 100 V AC, 1-phase 200 V AC, and DC input. To comply with SEMI-F47 with 9 kW or larger servo amplifiers, the dynamic brake is not usable.) * The control power supply of the servo amplifier complies with SEMI-F47. Note that the backup capacitor may be required depending on the power impedance and operating situation for the instantaneous power failure of the main circuit power supply. Be sure to perform a test on your machine to meet the SEMI-F47 Voltage Sag Immunity Standard. Please use the 3-phase power supply for the servo amplifier input.

Tough Drive Function

Enhanced functions

Instantaneous power failure tough drive

Vibration tough drive

When an instantaneous power failure is detected, this function allows the servo amplifier to use the electric energy charged in the main circuit capacitor in the servo amplifier to avoid an alarm occurrence, increasing the machine availability even with an unstable power supply.

Machine resonance suppression filter is automatically readjusted when a change in machine resonance frequency is detected by the servo amplifier. Losses from the machine stop due to age-related deterioration are reduced.

Undervoltage

Suppresses vibration by readjusting the machine resonance suppression filter.

Tough drive enabled Tough drive disabled

Servo motor speed

Vibration detected

Motor current

Operation continues even with instantaneous power failure.

Large Capacity Drive Recorder

Enhanced functions Patented

Servo data such as motor current and position command before and after the alarm occurrence are stored in non-volatile memory of the servo amplifier. Reading the servo data on MELSOFT MR Configurator2 helps you analyze the cause of the alarm. Check the waveform ((analog 16 bits × 7 channels + digital 8 channels) × 256 points) of the past 16-time alarms in the alarm history.

Data are stored in non-volatile memory at alarm occurrence.

Alarm No. and waveforms at alarm occurrence are displayed in MR Configurator2.

Waveform display

Monitor value display

Data over certain period of time are stored in the memory.

Lowered bus voltage It is revealed that the main circuit power is turned off.

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