Kollmorgen Digital MMC Control, Hardware Manual

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Kollmorgen - December 2011 61
MMC Smart Drive Hardware Manual
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SYSTEM POWER DEVICES
4.5.3 Connecting Shunt Modules
This section describes how to connect External Shunts to the drive.
Use shielded, high temperature 75
°
C (167
°
F), 600V, 2.5-4.0 mm
2
(12-14 AWG),
3.05 m (10 ft) maximum, copper wire. Follow one of the methods given below to
reduce the effects of EMI noise:
• Install wires using twisted pairs (two turns per foot minimum), as shown in the fig-
ure below. Keep unshielded wires as short as possible.
• Use shielded, twisted cable (ground shield at shunt and drive).
• Use shielded metal conduit (ground conduit at shunt and drive).
When two shunt modules are connected in parallel, the shunt capacity is doubled.
4.5.3.1 230V, 1-Phase MMC Smart Drive Shunt Wiring
The 230V, 1-Phase MMC Smart Drive requires the use of an Active Shunt module.
Refer to
Figure 4-9 for wiring an Active Shunt Module to this drive.
The 230V, 3-Phase MMC Smart Drive requires the use of a Passive Shunt module
(regen resistor). Refer to
Figure 4-10 for wiring an Passive Shunt Module to this drive.
WARNING
Do not connect more than two shunt modules to an MMC
Smart Drive.