Maxon ESCON 50/8 Application guide

ESCON Module 50/8 Servo Controller | P/N 532872 & 586137
Hardware Reference
CCMC | Edition 2020-06 | DocID rel9072
Hardware Reference

Table of Contents
ESCON Module 50/8 Hardware Reference
A-2 CCMC | 2020-06 | rel9072
1 About 3
1.1 About this Document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 About the Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 About the Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Specifications 7
2.1 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Thermal Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Limitations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.4 Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Setup 13
3.1 Generally applicable Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Configuration of Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4 Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4 Wiring 27
4.1 DC Motors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2 EC Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5 Motherboard Design Guide 33
5.1 Requirements for Components of Third-party Suppliers. . . . . . . . . . . . . . . . . . . 34
5.2 Design Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.3 THT Footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.4 Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.5 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.6 Dimensional Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.7 ESCON Module 50/8 Motherboard (586048) . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.8 Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
TABLE OF CONTENTS
READ THIS FIRST
These instructions are intended for qualified technical personnel. Prior commencing with any activities …
• you must carefully read and understand this manual and
• you must follow the instructions given therein.
The ESCON Module 50/8 is considered as partly completed machinery according to EU Directive 2006/42/EC, Article 2,
Clause (g) and is intended to be incorporated into or assembled with other machinery or other partly completed
machinery or equipment.
Therefore, you must not put the device into service, …
• unless you have made completely sure that the other machinery fully complies with the EU directive’s requirements!
• unless the other machinery fulfills all relevant health and safety aspects!
• unless all respective interfaces have been established and fulfill the herein stated requirements!

About
About this Document
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1 About
1.1 About this Document
1.1.1 Intended Purpose
The purpose of the present document is to familiarize you with the ESCON Module 50/8 Servo Controller. It
will highlight the tasks for safe and adequate installation and/or commissioning. Follow the described
instructions …
• to avoid dangerous situations,
• to keep installation and/or commissioning time at a minimum,
• to increase reliability and service life of the described equipment.
The document contains performance data and specifications, information on fulfilled standards, details on
connections and pin assignment, and wiring examples. In addition, the document also includes a
Motherboard Design Guide and detailed information on the optionally available «ESCON Module 50/8
Motherboard».
1.1.2 Target Audience
The present document is intended for trained and skilled personnel. It conveys information on how
to understand and fulfill the respective work and duties.
1.1.3 How to use
Take note of the following notations and codes which will be used throughout the document.
Table 1-1 Notation used
Notation Meaning
(n) refers to an item (such as order number, list item, etc.)
denotes “see”, “see also”, “take note of” or “go to”

About
About this Document
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1.1.4 Symbols & signs
In the course of the present document, the following symbols and signs will be used.
Table 1-2 Symbols & Signs
1.1.5 Trademarks and Brand Names
For easier legibility, registered brand names are listed below and will not be further tagged with their respec-
tive trademark. It must be understood that the brands (the list below is not necessarily concluding) are pro-
tected by copyright and/or other intellectual property rights even if their legal trademarks are omitted in the
later course of this document.
Table 1-3 Brand Names and Trademark Owners
Type Symbol Meaning
Safety Alert
(typical)
DANGER Indicates an imminent hazardous situation.
If not avoided, it will result in death or serious injury.
WARNING
Indicates a potential hazardous situation.
If not avoided, it may result in death or
serious injury.
CAUTION
Indicates a probably hazardous situation or calls the
attention to unsafe practices. If not avoided, it may
result in injury.
Prohibited
Action
(typical)
Indicates a dangerous action. Hence, you must not!
Mandatory
Action
(typical)
Indicates a mandatory action. Hence, you must!
Information
Requirement /
Note / Remark
Indicates an activity you must perform prior
to continuing, or gives information on a particular item
you need to observe.
Best Practice Indicates advice or a recommendation on the easiest
and best way to proceed.
Material
Damage
Indicates instructions on how to prevent damage to the
equipment.
Brand Name Trademark Owner
Certonal® © Acota Limited, GB-Shrewsbury
Littelfuse®
SMD NANO2® © Littelfuse, USA-Chicago, IL
Windows® © Microsoft Corporation, USA-Redmond, WA

About
About the Device
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1.1.6 Copyright
© 2020 maxon. All rights reserved.
The present document – including all parts thereof – is protected by copyright. Any use (including reproduc-
tion, translation, microfilming, and other means of electronic data processing) beyond the narrow restric-
tions of the copyright law without the prior approval of maxon, is not permitted and subject to prosecution
under the applicable law.
1.2 About the Device
The ESCON Module 50/8 is a small-sized, powerful 4-quadrant PWM servo controller for the highly efficient
control of permanent magnet-activated brushed DC motors or brushless EC motors up to approximately
400 Watts. The servo controller has been specifically designed for use in harsh environments and features
a Certonal FC-742 protective coating.
The servo controller is available in two variants – as «ESCON Module 50/8 HE» (586137) with heat sink
and as «ESCON Module 50/8» (532872) without heat sink. Latter is designed for the use with a suitable,
individually selectable heat sink. Thereby, we strongly suggest to employ the maxon accessory «ESCON
Module 50/8 Thermal Pad» (586142).
The featured operating modes – speed control (closed loop), speed control (open loop), and current control
– meet the highest requirements. The ESCON Module 50/8 is designed being commanded by an analog set
value and features extensive analog and digital I/O functionality.
The miniaturized OEM plug-in module can be seamlessly integrated in complex customer applications. A
suitable motherboard is available for the initial commissioning.
The device is designed to be configured via USB interface using the graphical user interface «ESCON Stu-
dio» for Windows PCs.
You can download the latest ESCON software version (as well as the latest edition of the documentation)
from the Internet under http://escon.maxongroup.com.
maxon motor ag
Brünigstrasse 220
CH-6072 Sachseln
[phone]
www.maxongroup.com

About
About the Safety Precautions
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1.3 About the Safety Precautions
• Make sure that you have read and understood the note “READ THIS FIRST” on page A-2!
• Do not engage in any work unless you possess the stated skills (chapter “1.1.2 Target Audience”
on page 1-3)!
• Refer to chapter “1.1.4 Symbols & signs” on page 1-4 for explanations of the symbols used in the
following!
• You must observe any regulation applicable in the country and/or at the site of implementation with
regard to health and safety/accident prevention and/or environmental protection!
Requirements
• Make sure that all associated devices and components are installed according to local regulations.
• Be aware that, by principle, an electronic apparatus can not be considered fail-safe. Therefore, you must
make sure that any machine/apparatus has been fitted with independent monitoring and safety equip-
ment. If the machine/apparatus should break down, if it is operated incorrectly, if the control unit breaks
down or if the cables break or get disconnected, etc., the complete drive system must return – and be
kept – in a safe operating mode.
• Be aware that you are not entitled to perform any repair on components supplied by maxon.
Electrostatic Sensitive Device (ESD)
• Make sure to wear working cloth in compliance with ESD.
• Handle device with extra care.
DANGER
High Voltage and/or Electrical Shock
Touching live wires causes death or serious injuries!
• Consider any power cable as connected to live power, unless having proven the opposite!
• Make sure that neither end of cable is connected to live power!
• Make sure that power source cannot be engaged while work is in process!
• Obey lock-out/tag-out procedures!
• Make sure to securely lock any power engaging equipment against unintentional engagement and tag
it with your name!

Specifications
Technical Data
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2 Specifications
2.1 Technical Data
ESCON Module 50/8 (532872)
ESCON Module 50/8 HE (586137)
Electrical Rating
Nominal operating voltage +VCC 10…50 VDC
Absolute operating voltage
+VCC min/+VCC max
8 VDC/56 VDC
Output voltage (max.) 0.98 x +VCC
Output current Icont/Imax (<20 s) 8 A/15 A
Pulse width modulation frequency 53.6 kHz
Sampling rate of PI current controller 53.6 kHz
Sampling rate of PI speed controller 5.36 kHz
Max. efficiency 99%
Max. speed of DC motor limited by max. permissible speed (motor) and
max. output voltage (controller)
Max. speed EC motor 150,000 rpm (1 pole pair)
Built-in motor choke –
Inputs & Outputs
Analog input 1
Analog input 2 12-bit resolution; −10…+10 V; differential
Analog output 1
Analog output 2 12-bit resolution ; −4…+4 V; referenced to GND
Digital input 1
Digital input 2 +2.4…+36 VDC (Ri= 38.5 kΩ)
Digital input/output 3
Digital input/output 4 +2.4…+36 VDC (Ri= 38.5 kΩ)/max. 36 VDC (IL<500 mA)
Hall sensor signals H1, H2, H3
Encoder signals A, A\, B, B\, (max. 1 MHz)
Voltage Outputs
Auxiliary output voltage +5 VDC (IL≤10 mA)
Hall sensor supply voltage +5 VDC (IL≤30 mA)
Encoder supply voltage +5 VDC (IL≤70 mA)
Motor Connec-
tions
DC motor + Motor, −Motor
EC motor Motor winding 1, Motor winding 2, Motor winding 3
Interface USB 2.0 / USB 3.0 full speed
Status Indicators
Operation green LED
Error red LED

Specifications
Technical Data
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Table 2-4 Technical Data
Physical
Weight
Module 50/8 approx. 16 g
Module 50/8 HE approx. 84 g
Dimensions (L x W x H)
Module 50/8 53.3 x 37.5 x 14.5 mm
Module 50/8 HE 53.3 x 37.5 x 30.6 mm
Connection Plugs into socket headers with 2.54 mm pitch and M2.5
threaded bolt
Environmental
Conditions *1)
Temperature
Operation Module 50/8: −40…+45 °C
Module 50/8 HE: −40…+65 °C
Extended range *1)
Module 50/8: +45…+85 °C
Module 50/8 HE: +65…+92 °C
Derating Figure 2-1
Storage −40…+85 °C
Altitude *2)
Operation 0…6’000 m MSL
Extended range *1)
6’000…10’000 m MSL
Derating: Ambient temperature
(Figure 2-2) less 11 °C
Humidity 5…90% (condensation not permitted)
*1) Operation within the extended range (temperature and altitude) is permitted. For this purpose, however, the adjustment of
ambient temperature and power dissipation (and for the ESCON Module 50/8 also a possibly necessary heat sink) must
be observed.
*2) Operating altitude in meters above Mean Sea Level, MSL.
ESCON Module 50/8 (532872)
ESCON Module 50/8 HE (586137)

Specifications
Thermal Data
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2.2 Thermal Data
2.2.1 Power Dissipation and Efficiency
The servo controller is available in two variants – as «ESCON Module 50/8 HE» (586137) with heat sink
and as «ESCON Module 50/8» (532872) without heat sink.
The two following graphs can be used to determine the application limits for output current and ambient
temperature for different supply voltages.
If you are using an ESCON Module 50/8 and want to fully utilize the extended temperature, you will need to
provide a suitable heat sink. From the following graphs you can see the maximum heat resistance Rth of a
corresponding heat sink at a known power dissipation PD. Take also note of chapter “2.2.2 Application
Example: Determining a suitable Heat Sink” on page 2-10.
Figure 2-1 Power Dissipation and Efficiency
Figure 2-2 Derating Ambient Temperature / required Heat Sink

Specifications
Limitations
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2.2.2 Application Example: Determining a suitable Heat Sink
To choose a suitable heat sink you will need to determine the maximum heat resistance Rth. Retrieve the
values of above figures as follows:
1) Assumption
The ESCON Module 50/8 (532872) shall be operated at a nominal operating voltage +VCC of 24
V and an output current Icont of 8 A.
2) Figure 2-1
At the intersection of the red characteristic (24 V) and 8 A output current (X-axis), a power dissi-
pation of 3.2 W results on the Y-axis.
3) Figure 2-2
The black characteristic (ESCON Module 50/8) reveals that operation with a power dissipation
of 3.2 W (X-axis) is possible without heat sink up to a maximum ambient temperature of approx.
55 °C (Y-axis).
Under the same conditions, however, for operation at a maximum ambient temperature of 85
°C (Y-axis) a heat sink with a maximum heat resistance Rth of less than 4 K/W is required (yel-
low characteristic).
Use the maxon accessory «ESCON Module 50/8 Thermal Pad» (586142) for optimum heat transfer and
observe the manufacturer's specifications for the respective heat sink.
Table 2-5 Heat Sink – Specification & Accessories
2.3 Limitations
Table 2-6 Limitations
Specification / Accessories
ESCON Module
50/8 Heat Sink *3)
Dimensions 53.3 x 37.5 x 16.5 mm (L x B x H)
(586141)
Heat resistance Rth 5.8 K/W
Mounting 4 threads for M2.5 screws
Material Aluminum, black anodized
ESCON Module
50/8 Thermal Pad
*3)
Dimensions 40 x 25 x 4 mm (L x B x H) (586142)
*3) Corresponds to the components used in ESCON Module 50/8 HE (586137)
Protection functionality Switch-off threshold Recovery threshold
Undervoltage 7.2 V 7.4 V
Overvoltage 58 V 55 V
Overcurrent 22.5 A —
Thermal overload 105 °C 90 °C

Specifications
Dimensional Drawings
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2.4 Dimensional Drawings
Figure 2-3 ESCON Module 50/8 – Dimensional Drawing [mm]
Figure 2-4 ESCON Module 50/8 HE – Dimensional Drawing [mm]

Specifications
Standards
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2.5 Standards
The described device has been successfully tested for compliance with the below listed standards. In prac-
tical terms, only the complete system (the fully operational equipment comprising all individual components,
such as motor, servo controller, power supply unit, EMC filter, cabling etc.) can undergo an EMC test to
ensure interference-free operation.
Important Notice
The device’s compliance with the mentioned standards does not imply its compliance within the final, ready
to operate setup. In order to achieve compliance of your operational system, you must perform EMC testing
of the involved equipment as a whole.
Table 2-7 Standards
Electromagnetic compatibility
Generic stan-
dards
IEC/EN 61000-6-2 Immunity for industrial environments
IEC/EN 61000-6-3 Emission standard for residential, commercial and light-
industrial environments
Applied stan-
dards
IEC/EN 61000-6-3
IEC/EN 55022
(CISPR22)
Radio disturbance characteristics/radio interference
IEC/EN 61000-4-3 Radiated, radio-frequency, electromagnetic field immunity test
>10 V/m
IEC/EN 61000-4-4 Electrical fast transient/burst immunity test ±2 kV
IEC/EN 61000-4-6 Immunity to conducted disturbances, induced by radio-
frequency fields 10 Vrms
Others
Environmental
standards
IEC/EN 60068-2-6 Environmental testing – Test Fc: Vibration (sinusoidal,
10…500 Hz, 20 m/s2)
MIL-STD-810F Random transport (10…500 Hz up to 2.53 grms)
Safety standards UL File Number E108467; unassembled printed circuit board
Reliability MIL-HDBK-217F
Reliability prediction of electronic equipment
Environment: Ground, benign (GB)
Ambient temperature: 298 K (25 °C)
Component stress: In accordance with circuit diagram and
nominal power
Mean Time Between Failures (MTBF)
• ESCON Module 50/8: 380'195 hours
• ESCON Module 50/8 HE: 517'288 hours

Setup
Generally applicable Rules
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3Setup
IMPORTANT NOTICE: PREREQUISITES FOR PERMISSION TO COMMENCE INSTALLATION
The ESCON Module 50/8 is considered as partly completed machinery according to EU Directive 2006/42/
EC, Article 2, Clause (g) and is intended to be incorporated into or assembled with other machinery or
other partly completed machinery or equipment.
3.1 Generally applicable Rules
Maximal permitted Supply Voltage
• Make sure that operating voltage is between 10…50 VDC.
• Supply voltages above 56 VDC, or wrong polarity will destroy the unit.
• Note that the necessary output current is depending on the load torque. Yet, the output current limits of
the ESCON Module 50/8 are as follows; continuous max. 8 A / short-time (acceleration) max. 15 A.
Hot plugging the USB Interface may cause Hardware Damage
If the USB interface is being hot-plugged (connecting while the power supply is on), the possibly high differ-
ences in potential of the two power supplies of controller and PC/Notebook can lead to damaged hardware.
• Avoid potential differences between the power supply of controller and PC/Notebook or, if possible, bal-
ance them.
• Insert the USB connector first, then switch on the power supply of the controller.
WARNING
Risk of Injury
Operating the device without the full compliance of the surrounding system with EU Directive
2006/42/EC may cause serious injuries!
• Do not operate the device, unless you have made completely sure that the other machinery fully com-
plies with the EU directive’s requirements!
• Do not operate the device, unless the other machinery fulfills all relevant health and safety aspects!
• Do not operate the device, unless all respective interfaces have been established and fulfill the
requirements stated in this document!

Setup
Configuration of Power Supply
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3.2 Configuration of Power Supply
Basically, any power supply may be used, provided it meets the minimal requirements stated below.
1) Use the formula below to calculate the required voltage under load.
2) Choose a power supply according to the calculated voltage. Thereby consider:
a) During braking of the load, the power supply must be capable of buffering the recovered kinetic
energy (for example, in a capacitor).
b) If you are using an electronically stabilized power supply, make sure that the overcurrent pro-
tection circuit is configured inoperative within the operating range.
Note
The formula already takes the following into account:
• Maximum PWM duty cycle of 98%
• Controller’s max. voltage drop of 1 V @ 8 A
KNOWN VALUES:
• Operating torque M [mNm]
• Operating speed n [rpm]
• Nominal motor voltage UN[Volt]
• Motor no-load speed at UN, n0[rpm]
• Speed/torque gradient of the motor Δn/ΔM [rpm/mNm]
SOUGHT VALUE:
• Supply voltage +VCC [Volt]
SOLUTION:
Power Supply Requirements
Output voltage +VCC 10…50 VDC
Absolute output voltage min. 8 VDC; max. 56 VDC
Output current
Depending on load
• continuous max. 8 A
• short-time (acceleration, <20 s) max. 15 A
VCC UN
nO
------- nΔn
ΔM
---------M⋅+


1
0.98
----------
⋅⋅1V[]+≥

Setup
Connections
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3.3 Connections
The actual connection will depend on the overall configuration of your drive system and the type of motor
you will be using.
Follow the description in the given order and choose the wiring diagram that best suits the components you
are using. For corresponding wiring diagrams Chapter “4 Wiring” on page 4-27.
3.3.1 Pin Assignment
Figure 3-5 Pin Assignment
Table 3-8 Pin Assignment (Pins 1-18)
Pin Signal Description
1/2 Motor (+M)
Motor winding 1
DC motor: Motor +
EC motor: Winding 1
3/4 Motor (−M)
Motor winding 2
DC motor: Motor −
EC motor: Winding 2
5/6 Motor winding 3 EC motor: Winding 3
7/8 +VCC Nominal operating voltage (+10…+50 VDC)
9/10 Power_GND
GND
Ground of operating voltage
Ground
11 +5 VDC
Hall sensor supply voltage (+5 VDC; ≤30 mA)
Encoder supply voltage (+5 VDC; ≤70 mA)
Auxiliary output voltage (+5 VDC; ≤10 mA)
12 Channel A Encoder channel A
13 Hall sensor 1 Hall sensor 1 input
14 Channel A\ Encoder channel A complement
15 Hall sensor 2 Hall sensor 2 input
16 Channel B Encoder channel B
17 Hall sensor 3 Hall sensor 3 input
18 Channel B\ Encoder channel B complement

Setup
Connections
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Figure 3-6 Pin Assignment
Table 3-9 Pin Assignment (Pins 19-29)
Pin Signal Description
19 DigIN/DigOUT4 Digital input/output 4
20 DigIN/DigOUT3 Digital input/output 3
21 DigIN2 Digital input 2
22 DigIN1 Digital input 1
23 GND Ground
24 AnOUT2 Analog output 2
25 AnOUT1 Analog output 1
26 AnIN2−Analog input 2, negative signal
27 AnIN2+ Analog input 2, positive signal
28 AnIN1−Analog input 1, negative signal
29 AnIN1+ Analog input 1, positive signal

Setup
Connections
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3.3.2 Hall Sensor
Figure 3-7 Hall Sensor 1 Input Circuit (analogously valid also for Hall Sensors 2 & 3)
Hall sensor supply voltage +5 VDC
Max. Hall sensor supply current 30 mA
Input voltage 0…24 VDC
Max. input voltage +24 VDC
Logic 0 typically <1.0 V
Logic 1 typically >2.4 V
Internal pull-up resistor 10 kΩ (referenced to +5.45 V)

Setup
Connections
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3.3.3 Encoder
Best practice
• Differential signals offer good resistance against electrical interference. Therefore we recommend
using a differential scheme. Nevertheless, the controller supports both schemes – differential and sin-
gle-ended (unsymmetrical).
• The controller does not require an index impulse (Ch I, Ch I\).
• For best performance, we strongly recommend using encoders with a line driver. Otherwise, speed
limitations may apply due to slow switching edges.
Figure 3-8 Encoder Input Circuit Ch A “Differential” (analogously valid also for Ch B)
Differential
Min. differential input voltage ±200 mV
Max. input voltage +12 VDC/−12 VDC
Line receiver (internal) EIA RS422 standard
Max. input frequency 1 MHz

Setup
Connections
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Figure 3-9 Encoder Input Circuit Ch A “Single-ended” (analogously valid also for Ch B)
Single-ended
Input voltage 0…5 VDC
Max. input voltage +12 VDC/−12 VDC
Logic 0 <1.0 V
Logic 1 >2.4 V
Input high current IIH = typically +420 μA @ 5 V
Input low current IIL = typically −170 μA @ 0 V
Max. input frequency 100 kHz

Setup
Connections
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3.3.4 Digital I/Os
3.3.4.1 Digital Input 1
Figure 3-10 DigIN1 Circuit
Input voltage 0…36 VDC
Max. input voltage +36 VDC/−36 VDC
Logic 0 typically <1.0 V
Logic 1 typically >2.4 V
Input resistance
typically 47 kΩ (<3.3 V)
typically 38.5 kΩ (@ 5 V)
typically 25.5 kΩ (@ 24 V)
Input current at logic 1 typically 130 µA @ +5 VDC
Switching delay <8 ms
PWM frequency range 10 Hz…5 kHz
PWM duty cycle range (resolution) 10...90% (0.1%)
RC Servo cycle duration 3…30 ms
RC Servo pulse length 1…2 ms