Input Wiring Board Signal Descriptions - Allen-Bradley 1394 User Manual

5-4 Wiring Your 1394 Analog Servo System
Wire:
A VREF +
A VREF -
A TQREF +
A TQREF -
ENABLE
FAULT RESET
ANALOG OUT 1/
ANALOG COM
ANALOG OUT 2/
ANALOG COM
COM
CHASSIS
CONTACTOR EN
DROK
Publication 1394-5.0 — May 2000

Input Wiring Board Signal Descriptions

The tables below and on the following pages provide descriptions of
the various control signals shown in Figure 5.1.
Description:
The drive will accept up to a +/-10V DC velocity command
signal to achieve maximum motor speed. Voltages lower than
+/-10V DC can be used by reprogramming (Anlg Vel Scal). You
must terminate the shield at one end only. The differential
impedance of the velocity command input is 80k ohms (40k
ohms for single ended inputs).
The drive will accept up to a +/-10V DC torque command signal
to achieve maximum torque command. Shield must be
terminated at one end only. The differential impedance of the
command input is 80k ohms (40k ohms for single ended
inputs).
3V DC = +/- 100% rated motor current.
Normal run commands to the drive are performed through the
Enable input and any additional user-supplied run control
circuitry. With 24V control power (W1, W2), three-phase input
power (U, V, W), Contactor Enable (TB2-16, 17) and Drive OK
(TB2-18, 19) applied, 24V DC user-supplied to this input
enables the axis. When this input is de-energized, a
regenerative braking action occurs on the motor.
Removing the Axis Enable signal and applying 24V DC
between this terminal and signal common (TB1-19) resets the
fault.
Important: Do not perform a Reset until you have determined
the cause of the fault and corrected it.
Motor current analog is available on TB1-16. It is scaled for
3.3V DC for 100% continuous rated motor current (10V DC =
300% motor rated current). Minimum load impedance between
TB1-16 and 18 is 10K ohm. This can be linked to other
parameters.
Motor velocity analog is available on TB1-17. It is scaled for
2.0V DC per 1000 rpm. Minimum load impedance between
TB1-17 and 18 is 10K ohm. This can be linked to other
parameters.
TB1-19 must be connected to the ground bar with 3.3 mm
AWG) wire.
Chassis ground reference terminal.
A set of contacts for energizing the user's three-phase line
contactor coil
When you apply 24V AC/DC control power to the system and
no system faults are detected, the Drive OK relay contact
closes. It can also be programmed for fault only, ignoring the
bus voltage. The contact remains closed until a drive fault
occurs, DC bus voltage is lost, or you remove 360/480V input
power from the system module depending on how you set the
Drive OK mode parameter. If a drive fault is detected or the DC
bus voltage is lost, the relay contact opens. You can wire the
Drive OK contacts into the stop string to open the main power
contactor if a fault occurs. The contact rating is 115V AC or 24V
DC, 1A. DROK is located at CR2.
Connects to terminal(s):
TB1 and TB2 terminals 1,
2, 3, 8, 9, and 10
TB1 and TB2 terminals 4,
5, 6, 11, 12, and 13
TB1 and TB2 terminals 7
and 14 and TB2 terminal
15
TB1 terminal 15
TB1 terminal 16 and 18
TB1 terminal 17 and 18
2 TB1 terminal 19
(12
TB1 terminal 20
TB2 terminals 16 and 17
TB2 terminals 18 and 19
Mandatory
or Optional:
Optional
Optional
Mandatory
Mandatory
Optional
Optional
Mandatory
Optional
Mandatory
Optional