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Chapter 3. Identifying the Components
May 2002 T-38324-A Page 3-9
The TCM has a small four-digit display, a column of nine indicator LEDs, and two potentiometers.
The LEDs provide status and condition information about the connected nutrunner. The indicator
LEDs are labeled:
• READY • ANGLE HI
• GOOD • ANGLE LOW
• BAD • SPINDLE FAULT
• PEAK TORQUE HI • MOTOR ENABLE
• PEAK TORQUE LOW
The potentiometers are labeled:
• TACH GAIN • SPEED TRIM
When the TCM is removed from the controller, the two servo amplifier boards, servo amplifier fuse,
DCM board, and full backplane containing the address switch and TCM fuse can be seen.
Figure 3-6 is a rear view of the TCM. It allows you to see where the two servo amplifier boards, servo
amplifier fuse, and DCM are located. Descriptions of the TCM sub-components follow the figure.
Figure 3-6. Rear View of the TCM and Location of the Servo Amplifier Fuse
Servo
Amplifier
Board
Servo Amplifier
Fuse 20A
,
250V
Servo
Amplifier
Board
Device
Control
Module
(
DCM
)