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
© 2021 Synapticon GmbH | Daimlerstraße 26 | D-71101 Schönaich Documentation v 4.7.3 | Built 2021-03-29
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