Difference between revisions of "Argon specifications"

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*MOV based transient overvoltage protection
 
*MOV based transient overvoltage protection
 
*Earth leakage current typ. < 0.5 mA
 
*Earth leakage current typ. < 0.5 mA
−
*ESD protection on all pins
+
*ESD, short circuit, reverse polarity protection on all pins
 
*Surge protection on AC & DC power inputs
 
*Surge protection on AC & DC power inputs
 
|| Galvanic isolation on J1, J2, J3 and J5 connectors against J4 with live AC mains voltages
 
|| Galvanic isolation on J1, J2, J3 and J5 connectors against J4 with live AC mains voltages

Revision as of 17:51, 21 October 2013

Argon general pages
Argon user guide
This page lists official functional, electrical and physical specifications of the ARGON Servo Drive.

Main functionality

Function Description
Servo motor drive Closed loop control of various types of servo motors by sinusoidal field oriented control with dead-time distortion correction and high dynamic range torque control.
  • Support over 97% of all the servo motors below 2 kW in the market
  • Synchronous AC & BLDC motors
    • Sinusoidal and trapezoidal commutated
    • SPM (Surface Permanent Magnet) and IPM (Internal Permanent Magnet) types
  • Brush DC motors
  • Linear motors
    • Iron core
    • Ironless (with external inductive filter)
Control modes
  • Torque control
  • Velocity/speed control
  • Position control
Closed loop Cascaded control loops (PIV):
  • Torque / current control, update frequency 17.5 kHz
  • Velocity control, update frequency 2.5 kHz
  • Position control, update frequency 2.5 kHz

Dual-loop feedback support planned as firmware upgrade

Feed-forwards Feed-forwards working in velocity & position control modes:
  • Acceleration (inertia canceling) feed-forward
  • Velocity (friction canceling) feed-forward
Homing Integrated homing function for position control mode:
  • Sensorless hard-stop homing
  • Home switch search
  • Index pulse search
  • Soft position limits (eliminate limit switches)
Setpoint signal See setpoint signal / reference inputs list
Feedback devices See feedback devices list
Safety
  • Safe torque off with 3-way redundancy
  • Stopping motor on errors
    • Tracking error (velocity & position)
    • Over speed error
    • Limit switch
  • DC motor runaway prevention on feedback loss
  • Communication error detection
Protections
  • Over current
  • Short circuit (phase-to-phase)
  • I2t motor thermal protection
  • Over & under voltage
  • Over temperature
Commissioning
Approvals CE (LVD & EMC)

Mechanical

Property Value Units
Dimensions (with wall mounting tabs)¹ 51×197×127 (W×H×D) mm
Dimensions (excluding wall mounting tabs)¹ 51×177×127 (W×H×D) mm
Weight 0.88 kg
Case materials Steel (cover), aluminum (heat sink)

¹) Wall mounting tabs are fixed part of enclosure

Environment

Property Value Units
Operating temperature 10-70 °C
Storage temperature -30-90 °C
Humidity 0-95 non-condensing  %
Power dissipation 2-100¹ W

¹) Power dissipation is output current and input voltage related.

Power supply

Supply² Input voltage Input current typ Input current max
Logic power 24 VDC +/- 10% 0.1 - 0.4 A 0.5 A
Motor power³ 85 - 264 VAC 50/60 Hz 0 - 15 A¹ 26 A¹
84 - 380 VDC 0 - 15 A¹ 26 A¹

¹) Estimating true current or power consumption based on this table may be difficult as current demand typically varies greatly and and almost completely depends on motor load conditions.

²) Both logic and motor supplies are required.

³) Features internal inrush current limiter

Motor output

Property Value Units Remarks
Supported motors AC, BLDC, DC, Linear Permanent magnet motors only
Continuous output current 0-10  A (peak value of sine) User settable limit
Peak output current 0-15 A (peak value of sine) Duration 1 sec, then returned to continuous limit. User settable current limit.
Maximum effective motor phase output voltage Max 88% of input AC supply voltage AC or 124% DC. I.e. for 230 VAC drive supply, max motor output is 202 VAC (AC/BLDC/Linear) or 285 VDC (brush DC).
Switching frequency 17.5 kHz
Maximum modulation depth 88  % Maximum effective output is 88% of HV DC bus voltage.
Torque control bandwidth (typ.) 1-3.3 kHz Motor coil dependent
Torque control cycle time 57.1 µs
Position & velocity control cycle time 400 µs
Power conversion efficiency 90-95  % Under typical conditions
Motor inductance range @ 230 VAC 1.4-25 mH
Motor inductance range @ 115 VAC 0.7-25 mH
Motor power range 0.05 - 1.5 kW
AC commutation frequency 0-400 Hz

Regenerative resistor

Property Value Units
Maximum current 6 A
Series fuse 8 A
Minimum allowed resistance @ 230 VAC supply 63 Ω
Minimum allowed resistance @ 115 VAC supply 35 Ω
Resistor power dissipation 0-2400¹ W

¹) Power dissipation depends on how much system's kinetic energy is directed to the resistor

Feedback devices

Status of feedback device support

Feedback device type Status Electrical interface
Quadrature incremental encoder Standard feature Differential 3-5.5V (RS422), Single ended 3-5.5V (CMOS,TTL,open collector)
Hall sensors Standard feature Single ended 3-5.5V (CMOS,TTL,open collector). Differential signals accepted.
Analog SinCos encoder Under development¹ 1 V p-p, 12 bits sampling
Resolver/synchro Under development¹ 10 kHz excitation
Serial SSI encoder Planned¹ RS422/RS485
Serial BiSS encoder Planned¹ RS422/RS485
Tachogenerator Planned¹

¹) Supported already by hardware, usage possible after firmware upgrade

Quadrature encoder electrical properties

Property Value Units Remarks
Encoder count rate 0-4 MHz After 4x decoding, digitally filtered
Supply voltage 4.8-5.2 V Supplied from drive
Supply current 0-500 mA Supplied from drive

Setpoint signal / reference inputs

Setpoint signal type Status Electrical interface
Analog Standard feature Up to +/-10V or any lower range
Pulse and direction Standard feature Up to 4 MHz step rate, 5V signaling
Quadrature Standard feature Up to 4 MHz count rate, 5V signaling
PWM Standard feature 3-30 kHz PWM carrier frequency
Serial communication Standard feature SimpleMotion V2 RS485 based real-time serial bus with open source SDK
Stand-alone operation or custom setpoint signal User implementable May be implemented in the Argon open source firmware
EtherCAT Planned Realized with add-on board

Inputs / outputs

List of I/O's

J5 I/O connector pin groups. In addition to J5, J2 has digital I/O's for enable and STO
  • Isolated digital inputs (4 channels) - used for limit & home switches and clear faults signal ¹
  • Isolated digital outputs (4 channels) - used for status indication ¹
  • Differential analog inputs (2 channels) - used as Analog setpoint ¹
  • Differential digital inputs (2 channels) - used for pulse/direction or second encoder ¹
  • Digital inputs (3 channels) - used for safe torque off and drive enable
  • Digital output (1 channel) - used for motor solenoid brake

¹) Functions may be altered by modifying the Argon open source firmware

Electrical characteristics

For detailed specifications, see I/O electrical interfacing and pinout & wiring.

Property Typical value Maximum rating Units
Protections (all I/O lines) overvoltage, ESD, short circuit, reverse polarity
Isolated digital input (GPIx) logic 1 voltage 3-24 25.5 V
Isolated digital input (GPIx) logic 0 voltage 0-1.3 V
Isolated digital output (GPOx) voltage 0-24 25.5 V
Isolated digital output (GPOx) current 0-10 10 mA
High speed digital input (HSINx) voltage range 2.7-5.5 6.0 V
Analog input input (ANAINx) voltage range ±10 ±25 vs GND V
Analog input input (ANAINx) resolution 12 bits
Enable input input logic 1 voltage 20-24 25.5 V
STO input input logic 1 voltage 20-24 25.5 V
Motor brake voltage 12-24 25.5 V
Motor brake load current 0-0.5 0.7 A

¹) Power dissipation is output current and input voltage related.

Communication

Property Value Units
Communication protocol SimpleMotion V2
Default bitrate 460800 BPS
Maximum number of Argon devices chained in a single bus 15 pcs
Command throughput Up to 10000 Commands/s

Safety

Feature Properties Remarks
Safe torque off
  • 3-way redundancy with 2 physical STO inputs
  1. Cut AC input by safety relay @ STO1 input
  2. Cut power stage gate voltage @ STO2 input
  3. Disable power stage by software @ STO2 input
 STO1 safe up to 6 A RMS input current
Control error detection
  • Tracking error (velocity & position)
  • Over speed error
  • Limit switch
  • DC motor runaway prevention on feedback loss
  • Communication error
Electrical safety
  • Galvanic isolation between I/O side and power side
  • Internal fuse on AC input
  • MOV based transient overvoltage protection
  • Earth leakage current typ. < 0.5 mA
  • ESD, short circuit, reverse polarity protection on all pins
  • Surge protection on AC & DC power inputs
 Galvanic isolation on J1, J2, J3 and J5 connectors against J4 with live AC mains voltages
Overload safety
  • Over current
  • Short circuit (phase-to-phase)
  • I2t motor thermal protection
  • Over & under voltage
  • Drive over temperature

Warnings

Exceeding ratings may affect drive operation and cause instability or even damage the drive or other equipment. Damaged equipment may pose danger to users.
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