Allen-Bradley PowerFlex400, Руководство пользователя, Страница: 48 / 192

2-6 Start Up
Parameter P042 [Auto Mode] defines the operation mode of the control
keys on the integral keypad.
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 2.A P042 [Auto Mode]
=
1 “Hnd-Off-Auto” (Default)
T051-T054 [Digital Inx Sel]
≠
2 “Auto Mode” or 3 “Local”
Important: Certain digital input settings can override drive operation.
Refer to
Start and Speed Reference Control on page 1-24
for details.
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.