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Symptom Table

Vector Drive - Troubleshooting Guide - NGC

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Summary of Contents for NGC

Page 1: ...rol cabinet the High Voltage indicator light on the 320V Power Supply Vector Drive must have been off for at least 5 minutes Some service procedures can be dangerous or life threatening DO NOT attempt a procedure that you do not fully understand If you have any doubts about doing a procedure contact your Haas Factory Outlet HFO and schedule a service visit The Haas Vector drive is the source of po...

Page 2: ...Symptom Table Vector Drive Troubleshooting Guide NGC Page 2 of 9 pages ...

Page 3: ...D There is a problem with the REGEN Measure the resistance across the REGEN leads See the Regen Load section below Alarm 648 DC BUS SHORTED There is a problem with the REGEN circuit on the vector drive Check the regen circuit on the vector drive See the Regen Load section below Alarms 9911 AXIS AMPLIFIER CABLE DISCONNECTED The motor drive cable from Maincon to Amplifier is not connected or has a b...

Page 4: ...ged in or defective Disconnect the 970 cable from connector J1 on the vector drive Inspect the J1 connector pins and the pins on the 970 cable for damage Make sure that the cable is connected to the correct I O PCB location I O PCB P49 Alarm 9931 UNDEFINED HIGH VOLTAGE POWER SUPPLY FAULT The cable from the vector drive to the I O PCB is not plugged in correctly Make sure the cable from the Vector ...

Page 5: ... the motor output terminals 9 A 10 B and 11 C The meter should show high resistance readings typically in the Kilo or Mega ohms If the meter reads very low resistance the Vector drive is damaged Set your meter to Ohms test mode Put the black lead on terminal 3 with the red lead measure the motor output terminals 9 A 10 B and 11 C The meter should show high resistance readings typically in the Kilo...

Page 6: ...ce across the leads The reading must be as follows 2 resistor box between 9 5 and 12 5 ohms 3 resistor box between 6 3 and 8 3 ohms ohms As shown in the illustration 4 resistor box between 4 6 and 6 6 ohms If the REGEN loads are within specification there can be a problem with the vector drive Measure the resistance across terminals 1 and 3 on the vector drive Note A good drive will read a high re...

Page 7: ...correct voltage at P17 A faulty Maincon Mocon if you have the correct voltage on the 640C cable at the P17 connector of the Maincon Mocon There is 0 01 VDC for every 1 VDC Bus For example 320 VDC must show 3 2VDC Disconnect the DC Bus cables from terminals 2 and 3 on the vector drive Power on the machine Monitor the DC VOLTAGE on the diagnostics page of the control If the DC Bus goes back to the n...

Page 8: ... The cooling fan must turn OFF as the heat sink cools down Measure the temperature of the vector drive s heat sink through the exhaust vents when this alarm occurs If the temperature is above 60 C and the fan is not ON the vector drive has a faulty cooling fan Replace the cooling fan Corrective Action Measure the incoming voltage to the machine Make sure that the incoming voltage is within the ran...

Page 9: ...se a multimeter to measure the DC voltage across the following terminals on the vector drive see the illustration 3 and 9 3 and 10 3 and 11 The voltage must be 160 175VDC in all three readings If any of the voltage readings is 0V or 330V then this is a sign of an unbalanced output from the vector drive Vector Drive Troubleshooting Guide NGC Page 9 of 9 pages ...

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