Rockwell Automation 9101-1183 User Manual

Installation Instructions

200 Watt Passive Shunt Module

(Catalog Number 9101-1183)

Drives can require external power dissipation when large inertial
loads are present. To ensure that faults due to excessive bus voltage
do not occur, loads requiring power dissipation that exceed the
internal shunt capability require the use of external shunt resistor.

The passive shunt (Catalog No. 9101-1183, formerly 9101-1079) can be
used with the following products:

Drive Catalog No.

ULTRA 200™ Drives 1398-DDM-010, -010X, -020, -020X, -030, -030x,-075, and

-075X

ULTRA Plus™ Drives 1398-PDM-010, -020, -030, and -075

Ultra3000™ Drives 2098-DSD-030, -030-SE, -030-DN, -030X, -030X-DN, -075,

-075DN, -075X, and -075X-DN

Ultra5000™ Drives 2098-IPD-030, -030-DN, -075, and -075-DN

ATTENTION

Using the passive shunt with modules not listed can
cause equipment damage or personal injury.

!

As a motor decelerates, power is returned from the motor to the drive,
causing the bus voltage to increase. Ultra servo amplifier products
have circuitry that senses the voltage on the DC bus and dissipates
power when needed. When the bus voltage reaches the shunt turn-on
voltage, the internal shunt circuitry allows the excessive regenerated
power to be dissipated through an external resistor. After the bus
voltage is reduced to the turn-off voltage level, the shunt transistor
turns-off and no additional power is dissipated by the shunt resistor.

1 Publication 2090-IN003A-EN-P — November 2002

2 200 Watt Passive Shunt Module

Installing the Shunt

Orientation and Clearance

The following enclosure restrictions must be considered because the
shunt module dissipates excess regenerative power in the form of
heat. Refer to Figure 1 for shunt module spacing requirements.

Figure 1 Shunt Module Spacing Requirements Within an Enclosure

Do not mount temperature
sensitive components
above shunt module

87 mm (3.4 in.) min. of clearance on

each side of the shunt module.

Do not mount shunt module

on its side

ATTENTION

!

ATTENTION

!

The shunt module can release a large amount of heat
over time.

Any materials above the shunt module or its
enclosure may need the protection of a metal plate
to keep from deteriorating.

Failure to observe this precaution could result in
damage to surrounding materials, possibly leading to
fire.

The shunt module can release a large amount of heat
inside an enclosure.

Ensure there is enough ventilation so as the
maximum ambient temperature of 50° C (122° F) is
not exceeded.

Failure to observe this precaution could result in
damage to the shunt module.

Publication 2090-IN003A-EN-P — November 2002

200 Watt Passive Shunt Module 3

If the work environment dictates, mount the shunt module in an
enclosure providing protection against dust and splashing water
(IP54), or dust free and protected against water jets (IP65).

ATTENTION

!

Many NEMA (National Electrical Manufacturers Association) Type 4
cabinets provide this level of protection.

ATTENTION

Avoid contaminating electronic components.

Provide a quality air source to cabinets; free of
debris, oil, corrosives, or electrically conductive
contaminates. All cabinets should have scheduled
inspections and be cleaned as needed.

Failure to observe these safety procedures could
result in breakdown and damage to equipment.

If you mount the shunt module inside a cabinet, you
must make sure that the ambient temperature inside
the cabinet does not exceed 50° C (122° F).

!

Publication 2090-IN003A-EN-P — November 2002

4 200 Watt Passive Shunt Module

200 Watt Continuous Dissipation Cabinet Layout

Figure 2 details the proper position and cable separation for mounting
a drive with a shunt module inside a cabinet.

IMPORTANT

Figure 2 Typical Shunt Module Position and Conductor Routing for 200W Continuous Dissipation

Motor power cable AC power cable

Unshielded conductors

Twist conductors

(2 twists per

foot min.)

Shielded metal conduit, and
ferrite filters are also
recommended for reducing the
effects of EMI.

Only one passive shunt module can be used per
drive or damage to the drive will result.

87 mm (3.4 in.) minimum clearance
on all sides of the shunt module

Always separate low
voltage signal wiring
from high voltage power
wiring to reduce affects
of EMI.

Publication 2090-IN003A-EN-P — November 2002

When shielding is used, the
shield must be grounded to the
shunt and drive as is the motor
power cable.

Low voltage communications,

control I/O, and motor feedback cables