Servosila-SC-25-Datasheet

Introduction
Servosila SC-25 Brushless/Brushed Motor Controllers come in two form factors, a rectangular one (SC-25R) and a
circular one (SC-25C). Both models are identical in terms of capabilities, features, firmware, and external electrical
connectors. Industrial designers might prefer one model over the other depending on what actuated mechanisms they
are working on. At the same time, both electrical and software engineers rest assured that whichever model is chosen
for a particular design, a full electrical and software compatibility is still in place.
The controllers come with pre-soldered connectors (Molex & TE Connectivity) for attaching phase lines, power
lines, sensors, encoders, and information buses. Besides the connectors, the controllers come with soldering holes
for every signal or power line. The soldering holes allow cables to be soldered directly to the boards to form
vibration-resistant connections.
All connectors are intentionally placed on the front side of the boards only. There are no connectors on the back side
of the boards. The back side is intended for installation of an (optional) heat sink, or for attaching the boards directly
to an enclosure designed to act as a heat sink.
All the connectors are facing upwards, perpendicular to the boards. None of the connectors are facing sideways. This
arrangement simplifies cable routing within cramped spaces such as cylindrical enclosures of servo drives or mobile
chassis.
The electric motor controllers feature two identical parallel CANbus ports. This simplifies cabling of multiple
controllers into a chain, for example, inside a robotic arm manipulator or a robotic chassis, and streamlines in-the-
field repair or replacement process.
The controllers come with an on-board terminal 120 Ohm resistor prescribed by the CANbus standard. The resistor
can be turned on or off via a jumper. Only one controller in a chain needs to have the terminal resistor enabled.
There is a way to upgrade the controllers’ firmware via a RS232 port, including field firmware upgrades of servo
drives or mobile vehicles.
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