Emerson 400501-05 Encoder Specifications, Power Dissipation Calculation, Losses Pp Watts

Page 70

Epsilon Eb Digital Servo Drive Installation Manual

Encoder Specifications

Motor

Density

Output Type

Output

Output Signals

Power Supply

Frequency

 

 

 

 

 

MG

2048

RS422

250 kHz

A, B, Z, Comm U,

5V, 200 mA

differential

Comm W, Comm V

and NT

lines/rev

per channel

±10%

driver

and all complements

 

 

 

 

 

 

 

 

 

 

Power Dissipation

In general, the drive power stages are 90 to 95 percent efficient depending on the actual point of the torque speed curve the drive is operating. Logic power losses on the Epsilon drive are 11 W with normal loads to 15 W with additional loads such as external encoder and low input voltage (<22 VDC on A.P.S. or 120 VAC on AC input).

The values shown in the table below represent the typical dissipation that could occur with the drive/motor combination specified at maximum output power.

Drive Model

Logic Power Losses (typ)

Maximum Power Stage

Total Power Losses (Watts)

Drive (Pld) (Watts)

Losses (Pp) (Watts)

 

 

Eb-202 / MG-205

 

25

36

 

 

 

 

Eb-202 / NT-207

 

25

36

 

 

 

 

Eb-202 / NT-212

 

30

41

 

 

 

 

Eb-203 / NT-207

 

30

41

 

 

 

 

Eb-203 / MG-208

11

55

66

 

 

 

Eb-203 / NT-212

55

66

 

 

 

 

 

Eb-203 / MG-316

 

60

71

 

 

 

 

Eb-205 / NT-212

 

55

66

 

 

 

 

Eb-205 / MG-316

 

72

83

 

 

 

 

Eb-205 / MG-340

 

88

99

 

 

 

 

Power Dissipation Calculation

Calculating actual dissipation requirements in an application can help minimize enclosure cooling requirements, especially in multi-axis systems. To calculate dissipation in a specific application, use the following formula for each axis and then total them up. This formula is a generalization and will result in a conservative estimate for power losses.

TPL

=

TRMS

* Vmax

+ Pld + Psr

1500

 

 

 

Where:

52

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Contents Installation Manual Page Epsilon Eb Digital Servo Drive Installation Manual Control Techniques Drives, Inc Customer Service FAXTraining Services 952 995-8000 or 800 Document ConventionsEpsilon Only This RepresentsGeneral Warning Safety InstructionsReference Materials Qualified PersonSafety of Machinery Safety PrecautionsSetup, Commissioning and Maintenance EnclosureViii Drive Overload Protection Underwriters Laboratories ListedRated output current Amps RMS Drive Model Continuous Peak CE Declaration of Conformity Supplementary information Xii Table of Contents Options and Accessories Diagnostics and TroubleshootingSpecifications Index Epsilon Eb Digital Servo Drive Installation Manual Xvi Drive Model Power Rating Continuous Current Peak Current FeaturesEpsilon Eb Digital Servo Drive Epsilon Eb Drives Feature Location Basic Installation Notes Electromagnetic Compatibility EMCAchieving Low Impedance Connections Epsilon Series Schaffner Control Techniques Rating AC Line Filter Installation NotesAC Line Filters Drive RatingCable Type Cable to Enclosure ShieldingActual Hole Size Environmental Considerations AC Filter and Cable Connections for Epsilon DrivesDrive Mounting Mechanical InstallationWiring Notes Motor MountingElectrical Installation Typical System Grounding DiagramPower Supply Requirements AC Supplies not Requiring TransformersAC Supplies Requiring Transformers Earth Grounded WYE Distribution TransformerDelta to Delta Isolation Transformer Transformer Sizing Drive/Motor Combination Suggested KVA RatingAmps RMS at Line Fusing and Wire SizeInrush Current Amps St Cycle 2nd CycleInput Power Connections Epsilon AC Power Wiring DiagramAlternate Power Supply Wiring Epsilon Auxiliary Power Supply Wiring DiagramAPS Input Specification Voltage Range Current Inrush CurrentMotor Power Wiring Multiple APS Wiring DiagramMotor Feedback Wiring Motor Brake WiringEpsilon Brake Wiring Diagram using the Command Connector Input/Output and Drive Enable Wiring Epsilon Input/Output Wiring DiagramCommand Connector Wiring Epsilon I/O to Command Connector Internal ConnectionsCommand Connector J5 Pinout and CMDO-XXX Wire Colors Function Pin Numbers Electrical CharacteristicsCommand Cables Analog Command Wiring Analog Command, Differential Wiring DiagramEncoder Output Signal Wiring Command Connector Encoder Output WiringPulse Mode Wiring, Differential Inputs Pulse Mode, Differential Output to Differential InputPulse Mode Wiring, Single Ended Inputs Master/Slave Encoder Connections Serial Communications Modbus Communications Serial Communications SpecificationsMulti-Drop Communications Multi-Drop Wiring Pinout Diagnostic Display Display Indication Status DescriptionFault Codes Display Fault Action to Reset Bridge DisabledFault Descriptions Diagnostics and TroubleshootingPower Module High DC Bus Threshold Low DC Bus TresholdEncoder State Diagnostic Analog Output Test Points Output Source Offset ScaleDrive Faults Diagnostic Cable Dgne DiagramRebooting the Drive Resetting FaultsViewing Active Drive Faults Watch WindowWatch Window View Motor Parameters GroupOptions and Accessories ECI-44 External Connector Interface Dimensions of ECI-44STI-EIO Interface STI EIOECI-44 Signal Connections Drive Specifications Shunt Resistor Capacity Encoder Output SignalFault Detection Capability Regeneration CapacityDrive and Motor Combination Specifications Motor Brake Specifications Motor WeightsAxial/Radial Loading IP RatingsMotor Max Radial Load lb Max. Axial Load lb Power Dissipation Calculation Encoder SpecificationsPower Dissipation Motor Density Output Type Output Signals Power SupplySpeed Torque Curves Motor Mounting Plate SizeEpsilon Speed Torque Curves, sheet 1 Epsilon Speed Torque Curves, sheet 2 Epsilon Drive Dimensions Eb 202, Eb-203, Eb-205 Following table applies to A* and B* as shown in FigureMGE-205 and 208 Mounting Dimensions inches mm MG Motor DimensionsMGE-205 and 208 Motors MGE-316, MGM-316, and MGM-340 Mounting Dimensions MGE-316, MGM-316, and MGM-340 Mounting Dimensions Inches mmMGE-316 and 340 Motors MGE-455, 490 and 4120 Mounting Dimensions inches mm MGE-455, 490 and 4120 MotorsMGE-455, 490 and 4120 Mounting Dimensions mm inches MGM-455, 490 and 4120 MotorsNT Motor Dimensions NTE-207 Motors English Face Nema 23 with 3/8 inch shaftNTM-207 Motors Metric Face NTE-212 Motors English Face Nema 23 with 3/8 inch shaft NTM-212 Motors Metric Face Cable Diagrams Drive SignalCMDX-XXX Cable CMDO-XXX Cable CDRO-XXX Cable AX-CEN-XXX Cable EIO-XXX Cable TIA-XXX CableDDS-XXX Cable TERM-H Head Terminator TERM-T Tail Terminator CMDS-XXX Cable CMMS-XXX CableCFCS-XXX Cable CFCO-XXX Cable CFOS-XXX Cable Vendor Contact Information Index STI-EIO Index Epsilon Eb Digital Servo Drive Installation Manual