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Vector Drive - Troubleshooting Guide - CHC
Introduction
Electrical Safety
Caution: When you do maintenance or repair on CNC machines and their components, you must always follow
basic safety precautions. This decreases the risk of injury and mechanical damage.
• Set the main circuit breaker to the [OFF] position.
Danger: Before beginning any work inside the control 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.
Vector Drive - Troubleshooting Guide - CHC
Page 1 of 9 pages
The Haas Vector drive is the source of power for
the spindle motor and the servo amplifiers. There
are three sizes of Haas Vector drives: 20HP [1],
40HP [2] and 60HP [3].
LAST UPDATED: 02/14/2020
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Summary of Contents for Haas Vector Drive 20HP
- Page 1 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.
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Page 2: Symptom Table
Vector Drive - Troubleshooting Guide - CHC Symptom Table Page 2 of 9 pages... - Page 3 Vector Drive - Troubleshooting Guide - CHC SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION Alarm 123 SPINDLE DRIVE FAULT and Alarm 993 SHORT Inspect the Vector Drive and the Wye-Delta contactors for a short CIRCUIT The vector drive circuit. For Delta-Wye Contactor Troubleshooting refer to: Wye- detected a short Delta Contactor - Troubleshooting Guide -...
- Page 4 Vector Drive - Troubleshooting Guide - CHC Alarm 292 HIGH VOLTAGE POWER SUPPLY FAULT and Alarm 200 HIGH VOLTAGE POWER SUPPLY There is a problem OVER–TEMPERATURE with the vector Inspect the cooling fan. See the Cooling Fan section below. drive cooling fan. Alarm 2038 VECTOR DRIVE OR SPINDLE AMPLIFIER–OVER...
- Page 5 Vector Drive - Troubleshooting Guide - CHC Short Circuit Inspection Corrective Action: Inspect the spindle motor cables. Make sure the spindle motor cables are not contaminated or pinched. Inspect the vector drive. Disconnect all the vector drive terminals and do the following tests: Set your meter to Ohms test mode.
- Page 6 Vector Drive - Troubleshooting Guide - CHC Regen Load Corrective Action: Press [POWER OFF]. If the vector drive voltage indicator light is on, do not touch the electrical components. The high voltage in the control cabinet can kill you. Wait for the voltage indicator LED on the vector drive to go off completely.
- Page 7 Vector Drive - Troubleshooting Guide - CHC DC BUSS Corrective Action: Press [POWER ON]. Measure the DC voltage between terminals 2 and 3 on the vector drive. Compare the measured voltage with the DC VOLTAGE on the diagnostics page on the control. The readings must match +-2%.
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Page 8: Cooling Fan
Vector Drive - Troubleshooting Guide - CHC Cooling Fan Inspect the spindle fan cable connection. Make sure both spade connectors are properly going into the female connector. Corrective Action: An over-temperature alarm is generated when the vector drive's heat-sink reaches 90°C. The cooling fan must turn ON when the heat-sink temperature reaches 50°C. -
Page 9: Electrical Diagram
Vector Drive - Troubleshooting Guide - CHC Unbalance Output Inspection Corrective Action: Disconnect the motor cables at the vector drive. Push [POWER ON]. Push [RESET] to clear any alarms. Use a multimeter to measure the DC voltage across the following terminals on the vector drive (see the illustration): 3 and 9 3 and 10...
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