24
TQ10 User Guide
The TQ10 Torque drive and the TQ10SD Step & Direction drive have
ENABLE IN
and
FAULT OUT
terminals on their front panels. Connect your controller to these terminals on
the TQ10 Torque drive; or, connect your indexer to these terminals on the TQ10SD Step &
Direction drive. Instructions are given below.
Enable Input
To enable the drive, you must connect the enable input to ground. (TQ10SD Step &
Direction Drive: this connection must be made
before
applying power to the drive.)
If you break the connection to ground while the drive is on, the TQ10’s fault circuitry will
activate, with the following results:
•
The drive will shut down power output to the motor.
•
The motor will freewheel (it may not stop immediately).
•
The bicolor LED labeled
GRN = POWER ON, RED = NOT ENABLED
will be
illuminated red.
•
The fault output will become active (no current will flow through it).
To re-enable the drive, establish the connection between enable and ground. (TQ10SD Step
& Direction Drive: you must cycle power to re-enable the drive, and clear fault conditions.)
In most applications, you can permanently wire the enable input to ground. This input is
internally pulled up to +5V. If your equipment requires, you can connect the input to an
external voltage as high as +24V. You can also connect it to a dry contact closure to
ground.
If you need to disable the drive in an emergency, use the enable input. Connect a
manual
disable
switch to the enable input, as the next drawing shows. The switch is normally
closed. When it is opened, the drive will be disabled. The load can freewheel—therefore,
you should use a brake to stop the motor immediately in applications where a freewheeling
motor can cause injury or damage.
1K
Ω
0.1
µ
F
1 Enable In
2 Enable Gnd
Internal Connections
TQ10
Manual Disable
(normally closed)
To Drive
Circuitry
+5V
Enable Input Connected to a Switch
WARNING
Do not use the ENABLE INPUT by itself as an emergency stop. The motor can freewheel
when the drive is disabled and may not stop immediately. Use a mechanical brake or some
other method to stop the motor quickly.
If you need to disable the TQ10SD Step & Direction drive during
normal operations
, you
should use the shutdown input—it allows you to re-enable the drive from the indexer
without cycling power. The shutdown input is described later in this section.
If you need to disable the TQ10SD Step & Direction drive in an
emergency
, use the enable
input as described above—
not
the shutdown input.
The TQ10 Torque drive has no shutdown input.
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