➁
Installation
23
Under these conditions (
HALL 1
and
HALL 2
connected to ground;
HALL 3
unconnected),
the drive’s internal logic determines that a brushed motor is connected. The drive will send
DC current out of Phase A, through the motor, and back into the drive through Phase C.
The amount and polarity of the current will be determined by the command input signal.
Shielded Motor Cables
Keep electrical noise from interfering with the signals that the Hall effect sensors send to
the drive. Position the motor as close as possible to the drive. If you need to connect a long
cable between the drive and motor, we recommend you use a shielded cable for the Hall
wires (Hall 1, Hall 2, Hall 3, Hall +5V, Hall Gnd). Run the power wires (phase A, B, and
C) separately from the Hall wires.
Motor Grounding
For safety reasons, the motor case should be grounded. Often, the motor can be grounded
through the equipment to which it is mounted. This requires a good electrical connection
between the motor’s mounting flange and the equipment, and that the equipment be
connected to ground. Check with the National Electrical Code (NEC) and your local
electrical code to ensure you use proper grounding methods.
Proper grounding can also reduce electrical noise.
GROUND THE MOTOR CASE!
The motor case must be grounded, to reduce electrical noise. An ungrounded motor can
cause electrical noise problems throughout the system, particularly in encoder wiring and
circuitry. This noise may cause the encoder to output erroneous information, such as
missing encoder pulses. To avoid electrical noise problems, ground the motor case.
6A. Connect a Controller or Indexer (TQ10 and TQ10SD)
The next drawing shows how to connect a Compumotor 6250 Servo Controller to your
TQ10 Torque Servo Drive. The drawing also shows the color code for Compumotor SM or
NeoMetric Series servo motors equipped with TQ cables.
TQ10 Torque Servo Drive
1
2
3
4
5
6
7
8
9
10
ENABLE IN
ENABLE GND
FAULT OUT +
FAULT OUT -
RESET IN
RESET GND
C
COMMAND -
COMMAND SHLD
GND
SHLD
COM
SHTNC
SHTNO
DFT
AGND
ANI
CMD-
CMD+
+5V
A+
A–
B+
B–
Z+
Z–
GND
SHLD
Drive Connector
Encoder Connector
6250 Controller
AT6n50 Controller
Red
White
Yellow
Green
Blue
Orange
Brown
Black
+5
A+
A–
B+
B–
Z+
Z–
GND
Encoder Cable
SM or NeoMetric Motor
with TQ Cable
Connections to Compumotor 6250 Servo Controller
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