Reliance flexpak plus - Dynamic Braking Kit Installed; Automatic Reversing Kit; Reversing Contactor Connections

The Dynamic Braking option is actually a resistor con-
nected across the motor armature. It allows a motor to act
as a generator; the rotating mechan ical (kinetic) energy is
converted into electrical energy that is dissipated in the
form of heat by the Dynamic Braking resistor.
Note that the resistor is sized for infrequent stops. Thus ,
users must allow time between stops for heat di ssipation .
When ordering the Kit, it is necessary to specify Part
Numbers according to horsepower and voltage ratings .
(Refer to Table 7.A.)
The Dynamic Braking Kit contains the resistor and two
mounting screws. Mount the Kit in the upper right-hand
corner of the Auxiliary Panel as shown in Figure 5.4 . Wire
the Dynamic Braking Kit according to Figure 5.5.
DB Resistor
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Figure 5.4 - Dynamic Braking Kit Installed
first
row
FM only
FM or
RM(D
Non-reversing (FM) contactor
longer wire
D.B.
CD For Reversing Contactors this wire only is placed on
exactly corresponding term inal on RM.
Figure 5.5 - Dynamic Brak ing Connections
21
5.3 Reversing Contactor - The standard FlexPak Plus
controller offers unidirectional control. With an optional
Reversi ng Contactor Kit and Auxiliary Panel, bidirectional
operation (both forward and reverse) is possible. Motor
direction is manually selected. Install the Auxiliary Panel
onto the Basic Controller according to Paragraph 5.1.
Mount the Reversi ng Contactor Kit on the right-hand side
of th e Auxil iary Panel with the three mounting screws
provided . Connect the two power wiring harn esses and the
control wiring harness as shown in Figure 5.6.
second
row
47
45
second
row
A1
66~
I I I I
BLUE REV. pin on Regulator Modul e
Figure 5.6 - Reversing Contactor Connections
5.4 Automatic Reversing - The optional Automatic Re-
versing Kit provides an
automatic reverse-direc tion capa-
bility to the FlexPak Plus. Functionally , the Kit allow s the
controller to sequence off, and then immediately sequence
on again, thereby providing a fast, automatic change of
direction . This respon se may be caused by either an exter -
nal switching signal or manually with a FORWARD /
REVERSE selector switch . (Refer to Figure 5.7.)
'*
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Figure 5.7 - Automatic Reversing Kit