21
TRAK Machine Tools
Southwestern Industries, Inc.
ProtoTRAK SMX, K2, K3 & K4 & Retrofit Safety, Installation, Maintenance, Service and Parts List Manual
Figure 9-1
Wiring the K2, K3 or K4 – Spindle Control
2.11.1 Phase Converters
For those machines that will be run with a phase converter it is recommended that it is a rotary type rather than a
static phase converters. Rotary phase converters allow for varying loads in the system. The electrical load on the
machine will vary based on the type of cut taken. Static phase converters can only be used on machines with a non-
varying load. The phase converter for the K mill machines must be rated at a minimum of 5 KVA for the K2 and K3
and 7 KVA for K4.
2.11.2 Flange Disconnect/Transformer (Optional)
The Flange Disconnect Option eliminates the need for the user to provide a power disconnect for the machine on
their own, while the Transformer Option allows the user to provide one power source to the machine.
Note: This
option is not available to machine fitted with the Spindle Control Option.
TO
SPINDLE
MOTOR
FAN
i01256-
SHT2
TO
SPINDLE
MOTOR
FAN
i01256-
SHT2
TO
SPINDLE
MOTOR
FAN
i01256-
SHT2
