Keypad hand-off-auto functions – Rockwell Automation 22C PowerFlex 400 AC Drive Quick Start - FRN 1-4.xx User Manual

Page 16

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English-16

PowerFlex 400 Adjustable Frequency AC Drive Quick Start

Parameter P042 [Auto Mode] defines the operation mode of the control
keys on the integral keypad. Hand-Off-Auto is the default operation
mode for PowerFlex 400 drives. For detailed information on other
operation modes, refer to the PowerFlex 400 User Manual supplied with
the drive.

Hand-Off-Auto Mode

In HAND mode:

Control keys operate as Hand-Off-Auto.

Start command and speed reference come from the integral keypad
Start/Hand and Digital Speed Increment and Decrement keys.

Auto key switches control from HAND mode to AUTO mode in a
bumpless transfer as long as there is an active Run command.

In AUTO mode:

Auto key LED is illuminated.

Start command is defined by P036 [Start Source].

Speed Reference command is defined by P038 [Speed Reference].

Start/Hand key switches control to the integral keypad in a bumpless
transfer and switches the speed reference to the integral keypad.

Stop key stops the drive and the drive switches to HAND mode.

Table 4.A P042 [Auto Mode]

=

1 “Hnd-Off-Auto” (Default)

T051-T054 [Digital Inx Sel]

2 “Auto Mode” or 3 “Local”

Keypad Hand-Off-Auto Functions

HAND Mode

AUTO Mode

Key

LED Key Function

LED Key Function

On Starts drive.

Runs according to Speed Increment/
Decrement keys.

On Changes to HAND Mode and Starts

drive.
Runs according to Speed Increment/
Decrement keys.

On Changes speed.

Off Not active.

Keys are only active if P038 [Speed
Source] = 0 “Drive Pot”.

Off Changes to AUTO Mode.

On Not active.

N/A Stops drive.

N/A Changes to HAND Mode and Stops

drive.

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