Editing Argon user guide/Braking resistor
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− | + | [[File:Regenres.jpg|400px|thumb|250 Watt 82 ohm regenerative resistor suitable for Argon drive]] | |
+ | Regenerative resistors are usually a required part with servo drives to absorb returned energy from decelerating or braking servo axis. | ||
− | + | Servo drive with motor can act two ways: energy supply and energy generator. The generator behavior occurs during decelerations and this causes current flow from motor to drive power supply capacitors. If that generated energy is not absorbed anywhere, the voltage of capacitors will rise above overvoltage threshold and trigger an software clearable overvoltage fault. | |
+ | Argon supports connecting braking resistor directly to drive [[Argon_wiring#J3_24V_power_and_motor_brake_port|J4 connector]]. | ||
==Suitable resistor type== | ==Suitable resistor type== | ||
Characteristics of Argon regenerative resistor output: | Characteristics of Argon regenerative resistor output: | ||
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==Installation== | ==Installation== | ||
[[File:Brakingreswiring.png|thumb|500px|Wiring of braking resistor to Argon drive]] | [[File:Brakingreswiring.png|thumb|500px|Wiring of braking resistor to Argon drive]] | ||
− | The image | + | The image above shows proper wiring of braking resistor. Proper installation has: |
* Shielded cable with 3 conductors with wire gauge at least 0.75 mm² / 18 AWG | * Shielded cable with 3 conductors with wire gauge at least 0.75 mm² / 18 AWG | ||
* Cable shield AND earth conductor connected to drive PE terminal | * Cable shield AND earth conductor connected to drive PE terminal | ||
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* Resistor should be also mounted on heat sink | * Resistor should be also mounted on heat sink | ||
* Additionally it is a recommended to shield the resistor terminals from accidental touching | * Additionally it is a recommended to shield the resistor terminals from accidental touching | ||
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{{electricshock|The terminals of the resistors are connected to dangerous voltages. Never touch them before drive power has been [[Power supply safe discharging|safely discharged]].}} | {{electricshock|The terminals of the resistors are connected to dangerous voltages. Never touch them before drive power has been [[Power supply safe discharging|safely discharged]].}} | ||
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