ElmoMC Power Supplies-TAM-20 - Manual (Page 28)

Tambourine 20 Power Supply Installation Guide
MAN-TAMIG (Ver. 1.501)
|Mounting and Wiring the Tambourine 20| www.elmomc.com
28
Table of Contents
3.4.8 DC-Link Shared Connection
Each Tambourine 20 contains a shunt. Its purpose is to "absorb" regenerated energy created by the
motor during braking and convert that energy into heat. If the energy regenerated by the motor
exceeds the capacity of the shunt, the drive is inhibited and an overvoltage message is sent.
To prevent this from happening, the braking-capacity of the shunt system can be extended by
connecting the DC output of several Tambourine 20s in parallel. When two or more Tambourine 20s
are connected, by DC Link cables, the regenerated energy is distributed among them. This spreads
the energy spikes over several shunts and enables the application to continue normal operation,
and avoid overvoltage interruptions.
Figure 9: The Tambourine 20's External DC Link Option
Caution: Tambourine 20 1 and Tambourine 20 2 must have an identical voltage
rating.