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1. #MAZAK ALARM CODES 378 HOW TO#
2. #MAZAK ALARM CODES 378 INSTALL#
3. #MAZAK ALARM CODES 378 SERIAL#
4. #MAZAK ALARM CODES 378 MANUAL#

Relay contacts for the dynamic brake is faulty.

#MAZAK ALARM CODES 378 SERIAL#

The input power supply is abnormal (open phase) or the main circuit capacitor was not recharged within the specified time.Ī communication error for the serial pulse coder was detected. Servo motor has overheated (estimated value).Īverage regenerative discharge energy is too high (too frequent acceleration/deceleration) –The regenerative discharge circuit is abnormal. Regenerative discharge energy is too high. The temperature of the heat sink has risen. +5 VDC of the control circuit power supply is abnormally low.ĭC voltage of the main circuit power supply is abnormally low or the circuit breaker is tripped. The battery voltage of the absolute pulse coder is low. Inverter: control power supply undervoltage Internal cooling circuit failure, Overload, Input supply voltage imbalance, IPM failure, or control supply voltage decrease of the power module. The main circuit power module (IPM) has detected an overload, overcurrent, or control supply voltage decrease, overcurrent, or control supply voltage decrease. Input supply voltage imbalance, IGBT defective. Overcurrent flowed into the input of the main circuit. If blinking continues → Replace the cable.Īmplifier is ready (normal operating state)ĭC voltage of the main circuit power supply is abnormally high. The cable on the Servo Amplifier side connected.) (b) Disconnect the feedback cable (JF*) from the Pulsecoder, and then switch on the power.

If blinking continues → Replace the Servo Amplifier. (a) Disconnect the feedback cable (JF*) from the Servo Amplifier, and then switch on the power. We will provide a fault diagnosis and a dependable 1-year warranty if you require FANUC servo amplifier repairs - or a new FANUC servo amplifier module or FANUC DC servo unit. Tri Star CNC Services can provide you with more information on the meaning of your alarms.

#MAZAK ALARM CODES 378 HOW TO#

(Japanese English = "Jenglish") The sequence is accurate, but understanding which keys to press and how to find them is confusing.Įssentially, you unclamp the turret, rotate to the #1 position, and store that encoder reading as the reference position. H331MMA0020E, pages 5-12 & 5-13)īut it's not very clear for a newbie.

#MAZAK ALARM CODES 378 MANUAL#

There's a recovery procedure in the Maintenance Manual (in this case, for the Mazak Quick Turn 350 / Manual No. You've lost the reference (#1) position of the turret and must re-estabish it. If you've left the machine off for a long time and the battery has expired while the power is off, it's alot less fun.

#MAZAK ALARM CODES 378 INSTALL#

C52012 from Mitsubishi) and install it with the POWER ON. Simply leave the power ON and order a new 3.2 volt battery (Part. If you're lucky enough to have the alarm occur when the machine is under power, it will be a good day. The 378 alarm indicates the voltage of the memory battery for the absolute position coder has dropped below 2.6 volts. '09 and thought I'd add my two-cents worth for the benefit of anyone who is looking to recover from the 378 alarm.