10
Rev. 1.0
8/26/2015
STM11 Hardware Manual
3 Installation/Connections
3.1 Connecting the Power Supply
Connect the power supply “+” terminal to the drive “+” terminal and the power supply “-” terminal
to the drive “-” terminal using AWG 26 wire. The STM11 contains an internal fuse connected to the
“+” terminal. This fuse is not user replaceable. If a user serviceable fuse is desired, install a 2 amp
fast acting fuse in line with the “+” power supply lead.
To Power Supply
-
To Power
To Earth Ground
Be careful not to reverse the wires. Reversing the connection may open the
internal fuse and void the warranty.
If a regulated power supply is being used, there may be a problem with regeneration. When a
load decelerates rapidly from a high speed, some of the kinetic energy of the load is transferred
back to the power supply, possibly tripping the over-voltage protection of a regulated power
supply, causing it to shut down. This problem can be solved with the use of a MOONS’ RC880
Regeneration Clamp. It is recommended that an RC880 initially be installed in an application. If
the “regen” LED on the RC880 never flashes, the clamp is not necessary.
LEDs
Green - Power
Red - Regen on
RC880 Regen Clamp
