Argon specifications

This page lists official electrical and physical specifications of the Argon (servo drive).

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	0.85	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.
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

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	Included	Differential 3-5.5V (RS422), Single ended 3-5.5V (CMOS,TTL,open collector)
Hall sensors	Included	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

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

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