Hardware
revision*
Description and changes
2.0.1R Changes from previous version:
Added EtherCAT connectivity
PCB and PCA modifications to improve manufacturing reliability
Changed rounded corners radius for aesthetic reasons
High-speed (HS) digital inputs interface are pre-biased to allow easy wiring in single
ended applications
Added STO (Safe Torque Off) as a mounting option upon demand
2.1.0 Changes from previous version:
Changed some components due to obsolescence
Same transistors are mounted for all the current variants (better performance).
Removed some unnecessary components
CAN connector changed to FCI 20020110-C031A01LF (green) to avoid confusion with
the supply and shunt connector
Silkscreen improvements
*Hardware revision is screen printed in white below motor connector, on the bottom of the Pluto.
Power and current ratings
The Pluto is capable of providing the nominal current from -10ºC to 50ºC ambient air temperature without
the need of any additional heatsink or forced cooling system. From 50ºC to 80ºC of ambient temperature a
current derating is needed to avoid a system overtemperature.
Excessive power losses lead to over temperature that will be detected and cause a the driver to turn off.
The system temperature is available in and is measured on the power stage. The EMCL registers
temperature parameter that can be accessed from USB 2.0 or CAN interface does not indicate the air
temperature. Above 110ºC the Pluto automatically turns off the power stage and stay in fault state
avoiding any damage to the drive. A Fault LED will be activated and cannot be reset unless temperature
decreases.
Current foldback based on temperature
Driver safety is always ensured by its protections. However, power losses and temperature limit
the allowable motor current.
Future will allow an automatic current fold-back based on temperature. versions of firmware
This means the current will be reduced before an over-temperature occurs. Stay tuned for
upgrades!
Some parts of the Pluto exceed 110ºC when operating, especially at high load levels.
and wait at least 5 minutes after turn off to allow a Do not touch the driver when operating
safe cool down.
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