Control Techniques Emerson Focus 1 User Manual

Page 21
Focus 1 Contactor Kit – P/N 2400-9001
This Kit includes a magnetic contactor that can be mounted
either in the Focus 1 enclosed unit or on the chassis mount
unit. It provides a positive disconnect of the motor armature
when the controller is stopped, preventing motor rotation in
the event of SCR mis-fire due to line noise. This kit may also
be required by local and/or National Electrical Codes. This
kit also includes the DB (dynamic braking) poles, an
auxiliary normally open contact and all connection wires.
Focus 1 Reversing Kit – P/N 2400-9001
This Kit includes a magnetic contactor that can be mounted
either in the Focus 1 enclosed unit or on the chassis mount
unit. It provides a positive disconnect of the motor armature
when the controller is stopped, preventing motor rotation in
the event of SCR mis-fire due to line noise. This kit may
also be required by local and/or National Electrical Codes.
This kit also includes the DB (dynamic braking) poles, an
auxiliar
y
normall
y
o
p
en contact and all connection wires.
Focus 1 Option Kits
AC Input HP (Typical) Part Number
120 Vac
1/4-1/3
1/2
3/4-1
F3DB1524
F3DB224
F3DB112
240 Vac
1/2
3/4-1
1.5
2
F3DB0524
F3DB224
F3DB1524
F3DB224
Focus 1 Dynamic Braking Kit
PN– See Table Below
For use with Focus 1 Contactor Kits. Dynamic braking
provides rapid motor stopping by quickly dissipating the
stored energy in the rotating motor and load.
These resistors have been sized in accordance with Nema
specifications for dynamic braking.
“Providing 3 stops in rapid succession with the load
inertia equal to the motor inertia, then cooling forever.”
Requires contactor kit

Control Techniques Emerson Focus 1 Specifications

General

Brand	Control Techniques
Model	Emerson Focus 1
Category	DC Drives
Language	English