SYNAPTICON SOMANET Node User manual

Installation Guide
Documentation v 4.7.3 | Built 2021-03-29
© 2021 Synapticon GmbH

Table of Contents
1 Installation Guide
1.1 Wiring instructions
1.1.1 Warning about using contactors behind the power supply
1.2 Connectors
1.2.1 EtherCAT IN/OUT
1.2.2 Power Terminal
1.2.3 Encoder Port 1
1.2.4 Encoder Port 2
1.2.5 Encoder Port 3 / Digital IO
1.2.6 Analog IN
1.2.7 EtherCAT port
1.2.7.1 EtherCAT IN Port
1.2.7.2 EtherCAT OUT Port
1.2.8 Connector types and mating parts numbers
1.3 Grounding and connecting a brake
1.3.1 Connecting a Brake
1.4 Mounting instructions
1.4.1 Heat dissipation
1.4.2 Dimensions
1.4.3 Interference with magnetic fields
3
4
4
6
6
7
8
9
10
11
12
12
13
13
15
15
16
16
16
17
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
© 2021 Synapticon GmbH | Daimlerstraße 26 | D-71101 Schönaich Documentation v 4.7.3 | Built 2021-03-29 2/17

1 Installation Guide
This manual will guide you through the basic steps to get your SOMANET Node running.
Attention
When dealing with electronic devices, always consider these handling instructions!
Important
For proper functionality of the current sensors the servo drive must not be exposed to external
magnetic fields, see our mounting instructions for details.
Wiring instructions
Connector pinouts
Grounding and connecting a brake
Mounting instructions
After you have succussfully set up your servo drive you can proceed to commission and tune your
drive:
Commissioning and tuning with OBLAC Drives
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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1.1 Wiring instructions
The motor and power cables must be twisted for EMC reasons.
Note
SOMANET servo drives are densely packed with high-performance components. Even at
idle/torque off, several components such as power supplies, cause the servo drive to get warm,
especially when it’s not connected to any heat conducting structure. The servo drives’ power
stages and control algorithms were optimized for efficiency at high power output and actually
make them one of the most efficient servo drives available. The heat generation is not linear,
which makes it actually more noticable at idle or low power. Please ensure by design of your
mounting situation that the heat interface is connected to sufficient structure to appropriately
dissipate generated heat.
Note
Use a protected extra-low voltage (PELV) power supply.

1.1.1 Warning about using contactors behind the power
supply
Attention
Our servo drives are designed for voltages between 12 V and 48 V (60 V Max), they should be run
with an appropriate extra-low voltage supply. Please do not use contactors behind the power
supply since the transient-voltage-suppression diodes could get damaged due to the power-up
voltage increase (Surge). This is likely to happen when the power up occurs fast and can lead to
complete failure of your servo drive.
If contactors behind the power supply are used, it’s necessary to include an uni-directional TVS
diode type 1.5KE62A-E3/54* between Main Power Supply and Ground of the terminal.
* this model has been successfully tested by Synapticon. Other products with the same
specifications may also be appropriate but can’t be recommended.
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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In case you are running several servo drives behind a contactor, please use an uni-directional TVS diode
on each drive because of the inductances of the wiring.
Now proceed to connecting your motor and encoders:
Connector Pinouts
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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1.2 Connectors
Before attaching cables, please check these guidelines:
Wiring instructions
1.2.1 EtherCAT IN/OUT
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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1.2.2 Power Terminal
Terminal
#
1 Power Ground
2 Main Power Supply 24 - 48 V
3 Phase A
4 Phase B
5 Phase C
6 Phase D
7 Shunt Res -
8 Shunt Res +
Grounding and attaching power and brake cables
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
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1.2.3 Encoder Port 1
Pin
#
HALL
(TTL)
ABI/ABZ
(RS422)
ABI/ABZ
(TTL)*
1 – – –
2 5 V 5 V 5 V
3 Ground Ground Ground
4 – – –
5 W (C) A- A
6 – A+ –
7 V (B) B- B
8 – B+ –
9 U (A) I- I
10 – I+ –
* To use ABI/ABZ with TTL please ensure that your Encoder is capable to sink 5 mA to GND when the
output of the encoder is 0
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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1.2.4 Encoder Port 2
Pin # ABI/ABZ (RS422) ABI/ABZ (TTL)* HALL (TTL)** BiSS
(RS422)
SSI (RS422)
1 – – – MA- Clock-
2 5 V 5 V 5 V 5 V 5 V
3 Ground Ground Ground Ground Ground
4 – – – MA+ Clock+
5 A- A W (C) SLO- Data-
6 A+ – – SLO+ Data+
7 B- B V (B) – –
8 B+ – – – –
9 I- I U (A) – –
10 I+ – – – –
* To use ABI/ABZ with TTL please ensure that your Encoder is capable to sink 5 mA to GND when the
output of the encoder is 0
Attention
** Our upcoming version Drive 400/1000/2000 E1 will support Half-Duplex communication on
this connector instead of HALL. To ensure your configuration will work with future versions of
this drive, please use connector 1 instead for current development.
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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1.2.5 Encoder Port 3 / Digital IO
Pin # GPIO REM 14/16MT BiSS (LVTTL) SSI (LVTTL)
1 3.3 V 3.3 V 3.3 V 3.3 V
2 Digital IO 1 SS SLO Data
3 Digital IO 2 SCK MA Clock
4 Ground Ground Ground Ground
5 Digital IO 3 MISO – –
6 Digital IO 4 MOSI – –
7 5 V 5 V 5 V 5 V
8 – – – –
9 Digital IO 5 – – –
10 Digital IO 6 – – –
11 – – – –
12 – – – –
All Digital IOs are 3.3 V LVTTL CMOS logic and can be used for data rates up to 20 Mbps
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
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Note
Each Digital IO needs to be configured as a Digital Input or Output via object 0x2210 (“GPIO”).
The object can also be used to activate a pull-down resistor.
Changes may require to powercycle the servo drive.
1.2.6 Analog IN
Pin # Default setting *
1 –
2 Analog Input 4 Single-ended 0-5 V
3 Analog Input 3 Single-ended 0-5 V
4 Ground
5 Analog Input 2 Single-ended 0-5 V
6 Analog Input 1 Single-ended 0-5 V
7 5 V
8 10 V
* All Analog Inputs can be configured as single-ended 0-5 V, 0-10 V independently. Upon request only,
please contact [e-mail]
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
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1.2.7 EtherCAT port
1.2.7.1 EtherCAT IN Port
Pin-out
Pin Name Type Function
1 * TX+ O Differential transmit output
2 TX- O Differential transmit output
3 GND P Ground
4 RX+ I Differential receive input
5 RX- I Differential receive input
* Pin 1 is on left
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
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1.2.7.2 EtherCAT OUT Port
Pin-out
Pin Name Type Function
1 * TX+ O Differential transmit output
2 TX- O Differential transmit output
3 GND P Ground
4 RX+ I Differential receive input
5 RX- I Differential receive input
* Pin 1 is on left
1.2.8 Connector types and mating parts numbers
Connector
description
Manufacturer Item
Number
Mating
part
Crimping
Contact
Cable
Analog IN JST Sales America
Inc.
SM08B-
GHS-TB
GHR-08V-S SSHL-002T-
P0.2
26-30 AWG
*
Encoder Ports 1 &
2
TE Connectivity 1-338068-0 1-215083-
0
N/A Flat Cable
28 AWG
P1.27
Port 3 (Digital IO) JST Sales America
Inc.
SM12B-
GHS-TB
GHR-12V-S SSHL-002T-
P0.2
26-30 AWG
*
Power Terminal
Block
Phoenix Contact 1935831 N/A 5859
WH005
(Alpha
Wire)
EtherCAT IN/OUT Molex 53261-0571 510210500
**
500588000 28-32 AWG
* Crimped cable from JST Sales America can be used, Parts number: AGHGH28K305
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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Note
** Housing only. Please ensure to only use shielded cables for EtherCAT communication!
Please also check out our dedicated EtherCAT node to PC cable which is specifically designed for
this purpose.
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
© 2021 Synapticon GmbH | Daimlerstraße 26 | D-71101 Schönaich Documentation v 4.7.3 | Built 2021-03-29 14/17

1.3 Grounding and connecting a brake
Please make sure you ground the board properly.
Your configuration will look like this:
1.3.1 Connecting a Brake
If your system has an attached brake, please connect the brake cables to Phase D and Ground. These
two threads should be twisted together or at least be paired to have a minimum area between them.
For mounting please refer to our mounting instructions:
Mounting instructions
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
© 2021 Synapticon GmbH | Daimlerstraße 26 | D-71101 Schönaich Documentation v 4.7.3 | Built 2021-03-29 15/17

1.4 Mounting instructions
1.4.1 Heat dissipation
For correct functioning, the srvo drive must be installed on a sufficiantly dimensioned heat conducting
surface made of a suitable material, such as aluminum.
Ensure that the servo drive is screwed properly to the heat conducting surface to facilitate the heat
transfer.
1.4.2 Dimensions
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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1.4.3 Interference with magnetic fields
Please consider the placement of the servo drive carefully when designing the motion control
application. It has become evident that the motor’s magnetic field has an impact on the drive’s
performance.
These are the preferred arrangements:
1. At any position but shielded with a Faraday’s cage
2. Behind the motor
3. Beside the motor but shielded from the motor’s magnetic field with a plate
Hardware Manuals / SOMANET Node / SOMANET Node rev. C.4 /
Installation Guide
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