ESCON Overview The ESCON servo controllers are small-sized, The featured operating modes speed control features extensive analog and digital I/O func- powerful 4-quadrant PWM servo controller for (closed loop), speed control (open loop), and tionality and are being configured via USB inter- the highly efficient control of permanent magnet- current control meet the highest requirements. face using the graphical user interface ESCON activated DC motors. The ESCON servo controllers are designed Studio for Windows PCs. being commanded by an analog set value and ESCON 36/2 DC ESCON 36/3 EC NEW ESCON Module 50/4 EC-S 403112 414533 446925 ESCON Module 50/5 ESCON 50/5 ESCON 70/10 438725 409510 422969 Depending on the ESCON variant, the following determine the speed. Channels A and B are Fixed value: The value is defined by a fixed motor types can be operated phase-shifted signals, which are being com- preset value. DC motor: Permanent-magnet DC motor pared to determine the sense of rotation. 2 fixed values: Value 1 is defined by a fixed EC motor: Brushless, electronically commu- DC tacho: The DC tacho delivers a speed- preset value 1. Value 2 is defined by a fixed tated permanent-magnet DC motor (BLDC) proportional analog voltage. preset value 2. A digital input is used to switch with and without Hall sensors. Available Hall sensors: The Hall sensors between the two preset values. deliver six different combinations of switching Various operating modes allow an adaptable impulses per electrical turn which are counted Various functionalities are available to enable use in a wide range of drive systems to determine speed. They also deliver phase- the power stage. Current controller: The current controller shifted signals that are being compared to Enable: Enables or disables the power stage. compares the actual motor current (torque) determine the sense of rotation. Enable & Direction: Enables or disables the with the applied set value. In case of deviation, Sensorless EC: The speed is determined by power stage and determines the motor shafts the motor current is dynamically readjusted. the progression of the induced voltage. The direction of rotation. Speed controller (closed loop): The closed electronics evaluates the zero crossing of the Enable CW: Enables or disables the power loop speed controller compares the actual induced voltage (EMF). stage in direction of rotation-dependent sense. speed signal with the applied set value. In The rotor can only turn clockwise (CW). case of deviation, the speed is dynamically To the numerous inputs and outputs, various Enable CCW: Enables or disables the power readjusted. functionalities can be assigned to. stage in direction of rotation-dependent sense. Speed controller (open loop): The open loop The rotor can only turn counterclockwise speed controller feeds the motor with a voltage Set value (speed or current), current limitation, (CCW). proportional to the applied speed set value. as well as offset can be assigned as follows. Enable CW & CCW: Enables or disables the Changes in load are compensated using the Analog value: The value is defined by an power stage in direction of rotation-dependent IxR methodology. analog voltage set via external or internal sense. The rotor can only turn in defined direc- potentiometer. tion. The signals are interlocked against each Speed measurement by PWM value: The value is defined by fixed other. Digital incremental encoder: The encod- frequency and amplitude. The desired change ers deliver simple square signals for further is achieved by variation of the duty cycle of The ramp function permits controlled accelera- processing. Their impulses are counted to 1090%. tion/deceleration of the motor shaft in both, open loop and closed loop speed controller mode. Analog ramp: The ramp is defined by means of an internal potentiometer. Fixed ramp: The ramp is defined by a fixed preset value. Stop: The motor shaft decelerates with preset speed ramp until complete standstill. Ready: The Ready signal can be used to trans- mit the operational status (respectively fault) to a superior control. Speed and Current Comparator: The digital output is set depending on the actual value. Limit: The digital output is set as soon as the preset value is reached. It remains set as long as the value is exceeded. ESCON Studio (Controller Monitor) 340 maxon motor control April 2014 edition / subject to change 1411 Motor control.indd 340 01.04.14 09:09 maxon motor control Range: The digital output is set as soon as Easy startup the preset value range is reached. It remains Startup and parameterization are performed using the intuitive graphical user interface ESCON set as long as the value remains in range. Studio with the help of simple to use, menu-guided wizards. The following wizards are available: Deviation: The digital output is set as soon as Startup, Regulation Tuning, Firmware Update, Controller Monitor, Parameters, Data Recording, the preset value deviation (based on the set and Diagnostics. value) is in range. Protective equipment With the integrated potentiometers the addi- The servo controller has protective circuits against overcurrent, excess temperature, under- and tional following functions can be adjusted overvoltage, against voltage transients, and against short-circuits in the motor cable. Furthermore Current Gain: Adjustment of the current it is equipped with protected digital inputs and outputs and an adjustable current limitation for controller gain. protecting the motor and the load. The motor current and the actual speed of the motor shaft can Speed Gain: Adjustment of the speed control- be monitored by means of the analog output voltage. ler gain. IxR Factor: The voltage drop caused by Comprehensive documentation terminal resistance will be compensated in the range of 010002000 . Using the Feature Comparison Chart, the suitable ESCON servo controller can easily be determined. The Hardware Reference comprises the specifications of the hardware in detail. Analog outputs allow monitoring of The documents Firmware Version and Release Notes describe changes and improvements of firmware and software. In addition, the graphical user interface ESCON Studio features a Actual current: Actually measured motor comprehensive online help. winding current. Actual current averaged: Actually measured motor winding current filtered by first order digital low-pass filter with a cut-off frequency of 5 Hz. Actual speed: Actually measured motor speed. Actual speed averaged: Actually measured motor speed filtered by 1st order digital low- pass filter with a cut-off frequency of 5 Hz. Demand Current: Demanded motor winding current. Demand Speed: Demanded motor speed. Temperature Power Stage: Actually mea- sured power stage temperature. Fixed value: The output voltage is said fixed to the preset value. Software Installation Program: ESCON Setup Graphical User Interface: ESCON Studio Startup Wizard Regulation Tuning Diagnostic Firmware Update Controller Monitor Parameters Data Recording Online Help Language: German, English, French, Italian, Spanish, Japanese, Chinese Operating System: Windows 8, Windows 7, Windows XP SP3 Communication interface: USB 2.0 (full speed) Accessories ESCON* 36/2 DC 36/3 EC M 50/4 EC-S M 50/5 50/5 70/10 404404 ESCON 36/2 DC Connector Set 425255 ESCON 36/3 EC Connector Set 403962 DC Motor Cable 403964 I/O Cable 7core 403965 I/O Cable 8core 275934 Encoder Cable optional optional optional optional 403957 Power Cable 403968 USB Type A - micro B Cable 418719 Adapter BLACK FPC11poles 418723 Adapter BLUE FPC8poles 418721 Adapter GREEN FPC8poles 438779 ESCON Module Motherboard 450237 ESCON Module Motherboard Sensorless 409286 ESCON USB Stick *not included in delivery April 2014 edition / subject to change maxon motor control 341 1411 Motor control.indd 341 01.04.14 09:09 maxon motor control