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Table of Contents

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Overview

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Refer to https://wiki.trenz-electronic.de/display/PD/EDPS+User+Manual for online version of this manual and additional technical documentation of the product.
 

Key Features

  • Evaluation of the Motor control evaluation with an the suitable controller board 
  • Quick evaluation with reference motor board
  • Power option up to 48V and 30A main supply current
  • MOSFET Power Stage power stage supporting 3-phase BLDC Motorsmotors
  • Current measurement on 2-phases (3 phase measurement is optional)
  • Temperature sensor on board On-board temperature sensor and 1-Wire wire bus connector for additional sensors
  • Encoder input capable of receiving both single ended and differential signals

 


Image Added

Figure 1: Top view of the PCB.Image Removed

Block Diagram

Image Modified

Figure 2: Block diagram of the board.

General Safety Instructions

  • This product is only allowed to be used by an should be operated only by qualified electrical specialist.
  • This product is not allowed to be used Never leave operating board unattended.
  • There is a possible risk of burns due to the hot surfaces while running operating the Board. This e.g. might be caused by an overcurrent at the motor Reason for this may be the high currents in the motor driving outputs.
  • All externally connected power sources must be SELV protected (Separated or safety extra-low voltageSafety Extra Low Voltage).
  • For set up the wiring switch off or disconnect All wiring and installation should be performed only with all external power supplies.
  • During operations it is not allowed to change the wiring or mechanical setup.
  • sources switched OFF or disconnected.
  • No rewiring or mechanical setup changes should be performed while the board is operating.
  • The product is rated for indoor dry environment use onlyThis product is only allowed to be used in a dry indoor environment.
  • The product is only allowed intended to be used only in horizontal position on a non-conducting and non-inflammable surface.
  • The mechanical setup must ensure that the whole test setup can not be dropped to the floor or moved accidentallydevice is firmly fixed in place and prevent accidental or unwanted movement of its parts.

Signals, Interfaces and Pins

Control Board Connections

Figure 3: PCB connectors J8 and J9.


Signal namesConnector J8Connector J9Connector J17

Digital Supply to EDPS

Pin 6, 12: +3.3V
Pin 5, 11: GND

Pin 6, 12: +3.3V
Pin 5, 11: GND
Pin 5, 6, 21, 22: +3.3V
Pin 1, 2, 25, 26: GND

Motor Driver PWM Signals to EDPS

High and Low Side control signals
are
hardware protected against
simultaniously
ON switching
of the MOSFETs

 

Pin 1: G1H - Ch.A HighSide
Pin 7: G1L - Ch.A LowSide
Pin 2: G2H - Ch.B HighSide
Pin 8: G2L - Ch.B LowSide
Pin 3: G3H - Ch.C HighSide
Pin 9: G3L - Ch.C LowSide

 

Pin 11: G1H - Ch.A HighSide
Pin 12: G1L - Ch.A LowSide
Pin 9: G2H - Ch.B HighSide
Pin 10: G2L - Ch.B LowSide
Pin 7: G3H - Ch.C HighSide
Pin 8: G3L - Ch.C LowSide

ADC Clock Signal to EDPS Pin 1: SCLKPin 23: SCLK
Encoder Digital Signals from EDPS 

Pin 8: ENC_A
Pin 9: ENC_B
Pin 10: ENC_I

Pin 20: ENC_A
Pin 18: ENC_B
Pin 16: ENC_I

Motor Current ADC "raw" Signals from EDPS
(usable with FPGA IP)
 

Pin 2: SDI1 - Current Ch.A
Pin 3: SDI2 - Current Ch.B
Pin 4: SDI3 - Current Ch.C

Pin 19: SDI1 - Current Ch.A
Pin 17: SDI2 - Current Ch.B
Pin 15: SDI3 - Current Ch.C

Supply Voltage ADC "raw" Signal from EDPS
(usable with FPGA IP)
 

Pin 7: SDIV - from DC_LINK
(Fused Motor Supply Voltage)

Pin 24: SDIV - from DC_LINK
(Fused Motor Supply Voltage)

1-Wire bus for temperature measurementPin 10: EXT1 - 1-Wire Bus 1
Pin 4: EXT2 - 1-Wire Bus 2
 

Pin 4: EXT1 - 1-Wire Bus 1
Pin 3: EXT2 - 1-Wire Bus 2

Not Pins not connected pinsnoneNonenoneNonePin 13, 14

Table 1: Description of the PCB connectors J8 and J9.

Motor and Power Connections

There are two options available for the motor and power concept:

DetailOption 1: Reference Motor Board with DC +12V SupplyOption 2: Customer Motor at individual DC +5..48VComments
Motor Supply

From DC +12V Input J7 via fuse F3

(TODO ... A)

via Motor Reference Board to J5 of Drive board

From customer DC
Supply
power supply to J6 via F1 on Drive Boad 
Motor ConnectionMotor wires connected to cage clamps on

Motor Reference Board J5 (A), J4 (B), J3 (C)Motor wires connected to bolt screw terminals on

Drive Board J2 (A), J3 (B), J4 (C) 

Encoder Connection

Single Ended

From encoder pins via

6Pin PMoD

6-pin Pmod to Drive Board J10:Image Modified

J10 single ended:

Pin 1: GND
Pin 2: ENC I input
Pin 3: ENC A input
Pin 4: +5V Supply
Pin 5: ENC B input
Pin 6: GND

From motor to Drive Board to J11 (single/differential):Image Modified

J11 single ended:

Pin 2: +5V Supply
Pin 3: GND
Pin 6: ENC A input
Pin 8: ENC B input
Pin 10: ENC I input


Jumper Settings for encoder signals.

Image Modified

Single Ended:

           Differential:


Image Modified    

 

Encoder Connection

Differential
 J11 differential with 100R terminated:
Pin 2: +5V Supply
Pin 3: GND
Pin 5: ENC A negativ
Pin 6: ENC A positiv
Pin 7: ENC B negativ
Pin 8: ENC B positiv
Pin 9: ENC I negativ
Pin 10: ENC I positiv

Image Modified

Internal

Table 2: Description of the Motor and Power connector.

On-Board Temperature Sensor

Onboard There is a Maxim on-board 1-Wire Temperature temperature sensor DS18S20Z+ . This sensor is from Maxim located in the middle of the PCB for optimal readings.
Addional 1-Wire wire sensor(s) can be connected to the connector J16:

Image Modified

Figure 4: 1-wire sensors connector J16.

  • Pin 1(DQ), 3 (GND),5 (+3.3V) at the same 1-wire bus as the onboard one
  • Pin 2(DQ), 4 (GND),6 (+3.3V) at a separate 1-wire bus

Power and Power-On Sequence

DC 12V

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power supply for the Motor and Driver board

The power source must be SELV (Separated or safety extra-low voltageprotected.

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The internal +5V digital supply is generated from this +12V supply.

DC 5...48V

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power supply for the Motor only

SAFETY INSTRUCTIONS:

Externally External power supply for the motor must be SELV (Separated or safety extra-low voltageprotected.

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  • only allowed to be used for electrical specialist for the used electrical voltage and power conditions
  • only allowed to be used under electrical laboratory conditions
  • only allowed to be used in horizontal position on a non-conducting and non-inflammable surface
  • only allowed to be used with a wiring, which fulfills the current rating for the maximum possible currents.
  • only allowed to be used with a suitable current limiting circuit
    • The maximum continuous current must not exceed 30A.
    • The delivered fuse "Littelfuse Tpye 142.5631.5302" must be used as current limiter between connector J5 and J6.
    • To limit the current for smaller motor loads an ADDITIONALLY appropriate current limiter can be used e.g. a current limited power source or a fuse integrated in the wiring.
  • only allowed to be used with appropriate connectors at the M5 screw connectors, which means M5 cable lugs must be used and fastened according to technical standards.
  • only allowed to be used, if the "Drive Boad high current signals" conducting up to 30A nominal, are covered by isolating, mechanically stable, non-inflammable (UL V-1 or better) material
    • The "Drive Board high current signals" are the motor outputs A, B, C and Fuse F1 Connectors J5 an J6 and further internal connections shown white marked in the following picture:


    • As minimum protection it It is mandatory to use the delivered "Isolating isolating cover PCB", which must be mounted to the mounting of the PCB made of plexiglass as a minimum protection. Use holes H1, H9, H3 , and H4 with the delivered 10mm isolating spacers :when mounting.

      Board with isolating transparent plexiglass cover - front top view.

      Board with isolating cover - side view

    • The used cable lugs need to be isolated in the area outstanding the outer border of the Drive Board
      Make sure that the "Isolating Cover PCB" is overlapping the conducting material by a minimum of 20 mm.

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