Epsilon
Digital Servo Drive
Overview
The Epsilon Series is the most compact digital servo drive in
the Control Techniques range. Designed to fit in 152mm
deep cabinets, with cables attached. Epsilon drives still possess the
functionality and flexibility found in our other drives and servos.
There are three sizes of each Epsilon drive: 2 Amp, 3 Amp
and 5 Amp, with the largest drive delivering up to 6Nm
continuous torque. Each drive contains a 14-segment status
display, reset button, removable connectors and utilises
standard “D” type connectors.
- 90 to 264 VAC 1Ø input power
- Up to 6Nm continuous torque
- Drive options: (in 2,3 or 5 Amp)
– Base Unit Eb
– Indexing Ei
– Indexing with DeviceNet Ei-DN
- Easy install, setup and operation
– Compact, space saving design, 152mm panel depth including
cables
– Pluggable connectors, standard D-type and screw terminals
– State-Space Observer Control, which allows 10-1 inertia
mismatch out of the box, and 50-1 with tuning
– Free PowerTools Software, and upgrades
- Programmable, optically isolated I/O
- RS232/485 serial communication interface using Modbus
protocol
- 14-segment status and diagnostic display, time-stamping of
last 10 faults for easy troubleshooting
- Field programmable flash memory firmware (upgrades are free)
- 24VDC auxiliary input for logic backup
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The Epsilon is available as a base drive, the Epsilon Eb; or as a
single-axis positioning, indexing drive, the Epsilon Ei.The
Epsilon Ei is also available with DeviceNet-Epsilon Ei-DN.
Power Tools FM Software
The Epsilon is very easy to commission and program using
PowerTools FM software. This Windows™-based programming environment
makes extensive use of drag and drop editing, tabbed setup screens
and hierarchical views.
PowerTools FM is used to select the operating mode and
motor, configure I/O, set velocity limits and torque levels, and
monitor drive and I/O Status.
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Epsilon
Specifications & Dimensions
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Dimensions
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Ratings
| 202 |
1.8
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3.6
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| 203 |
3.0
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6.0
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| 204 |
5.0
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10
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Power Requirements
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AC Input Voltage
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1Ø, 90 to 264 VAC, 47 - 63 Hz (240 VAC for rated performance) |
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Switching Frequency
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20 kHz |
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Logic Supply
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Internal |
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Auxiliary Logic Supply
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+18 to 30 VDC @ 0.5A |
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Encoder Supply Output
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+5 VDC, 250 mA |
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System Efficiency
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0.93 |
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Cooling Method
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Epsilon 202-205: Convection |
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Regeneration
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Internal Energy Absorption (115V)
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Epsilon 202/3: 41 Joules |
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Epsilon 205: 113 Joules |
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Internal Energy Absorption (230V)
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Epsilon 202/3: 18 Joules |
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Epsilon 205: 48 Joules |
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External:
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Connection to RSR-2 with external resistor, 20 Ohm min, 15
Arms, 2kW |
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Drive Control Inputs
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Analog:
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+/-10VDC, 14 bit, 100kOhm, |
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Differential Analog Max. Input Rating: |
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Differential +/-14 VDC, Each Input with |
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Reference to Analog Ground +/-14VDC |
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Digital:
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+10 to 30 VDC, 2.8kOhm, Sourcing, Optically Isolated |
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Pulse:
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Differential Rs-422, 2MHz/Channel, 50% Duty Cycle |
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Single Ended:
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TTL Schmitt Trigger 1MHz/Channel, 50% 50% Duty Cycle |
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Motor Over temperature:
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0 to +5VDC, 10kOhm, single ended |
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| Drive Control Outputs |
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Analog:
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+/-10VDC, 10 bit, Single-ended 20mA |
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Digital:
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+10 to 30VDC, 150mA |
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Sourcing
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Optically Isolated |
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Pulse:
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Differential RS-422 and TTL compatible, 20mA/Channel Sink or
Source |
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I/O Supply:
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+10 to 30 VDC |
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Environmental
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Rated Ambient Temperature:
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0° to 40°C for rated performance |
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Maximum Ambient Temperature:
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0° to 50°C with power derating of 3.5%/ 1°C above 40°C |
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Rated Altitude:
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1000m |
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Maximum Altitude:
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For altitudes > 1000m derate output by 1%/ 100m |
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Vibration:
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10 to 2000 Hz @ 2g |
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Humidity:
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10 to 95% non-condensing |
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Storage Temperature:
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-25° to 75°C |
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Ingress Protection:
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IP20 |
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Serial Interface
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RS232/RS485 Modbus RTU w/ Internal RS232 to RS485 Converter |
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Drive Weight
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Epsilon 202/3 1.5 kg |
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Epsilon 205 1.7 kg |
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DeviceNet (Optional)
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Power Consumption:
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25mA |
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Baud Rates:
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125, 250 and 500kpsNode |
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Addresses:
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00-63 Messaging: Explicit and Polled I/O |
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