Drive ready status bit, Pulse encoder counter register, Network register organization – Rockwell Automation GV3000/SE AC Drive AutoMax Network Communication Board, M/N 2AX3000 User Manual

Page 62: 6 drive ready status bit, 7 pulse encoder counter register, 8 network register organization

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Programming

4-5

4.6

Drive Ready Status Bit

The Drive Ready status bit (Drop_1, register 0, bit 0) indicates that a 0-to-1 transition
on the start input will start the drive. The Drive Ready bit is

ON

(1) when all of these

conditions are met, and

OFF

(0) if any one of these is not met:

No drive faults are active (Drop_1, register 0, bit 2 = 1)

Stop input is

ON

(Drop_1, register 32, bit 1 = 1)

Front-panel

STOP

/

RESET

button is not pressed or is disabled

Function loss terminal strip input is closed (Drop_1, register 0, bit 12 = 1)

A download from the serial port (using the CS3000 software) is not in progress

On larger drives (more than 50 HP) that contain a DC bus pre-charge resistor
bypass relay, the pre-charge relay is closed.

In JOG mode (Drop_1 register 0, bit 3 = 1), the vector parameter Torque Self-Tune
Enable (U.008) is

OFF

.

4.7

Pulse Encoder Counter Register

The pulse encoder counter register (Drop_1, register 11 when P.069 is set to 0) is a
16-bit up/down roll-over counter of motor pulse encoder pulses received. The value in
this register is the number of pulses times 4.

The counter counts up when the motor is rotating in the forward direction (

CCW

when

viewing the motor from the shaft end). For example: 0, 1, 2, … 65534, 65535, 0, 1 …

The counter counts down when the motor is rotating in the reverse direction. For
example: 65535, 65534, 65533, … 2, 1, 0, 65535, 65534 …

4.8

Network Register Organization

The register maps in tables 5.2 through 5.9 describe the registers and bits used by the
GV3000/SE drive on the AutoMax network.

Registers 0 to 31 are read-only, while registers 32 to 63 are read/write. Refer to
instruction manual J2-3001 (

Network Communications Module) for a detailed

description of network register assignments.

U parameters are updated only when the Volts/Hertz or Vector Regulation P.048
parameter is set to 1 (Vector).

H parameters are updated only when the Volts/Hertz or Vector Regulation P.048
parameter is set to 0 (V/Hz).

The data in Drop_3 depends on whether the selected regulator type is Vector or V/Hz.

Volts/Hertz or Vector Regulation P.048 can be set from either the front panel
keypad/display or the CS3000 software. It cannot be set over the AutoMax network.

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