P.054 level sense start enable – Rockwell Automation GV3000/SE AC Gen. Purpose and Vector Drive Software Start-Up and Ref. Manual User Manual

Page 130

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GV3000/SE AC Drive Software Reference, Version 6.06

This parameter applies to remote (P.000 = rE) and option port (P.000 = OP) control

sources only. Local keypad (P.000 = LOCL) and serial port (P.000 = SErL) control

sources always require an off-to-on edge on the start input to start the drive

Regardless of the status of P.054, the following conditions must be met in order for the
drive to start.

The terminal strip function loss input must be closed.

No faults can be active.

The DC bus must be valid.

No active stop input can be asserted.

When P.054 is set to OFF, and the above requirements are met, the drive requires an

off-to-on edge at the start input in order to start.

When P.054 is set to ON, and the above requirements are met, the drive applies

output power to the motor when the start input is asserted.

Note that in V6.06, the analog input can be configured to start and stop the drive.

Refer to section G.4.2 if you are using this feature and have configured the drive to

use the analog input to start and stop the drive.

P.054 Level Sense Start Enable

This parameter

selects whether the

start input is

edge-sensitive or

level-sensitive for

remote (P.000 = rE)

and option port

(P.000 = OP) control

sources.

Parameter Range:

OFF = Start input is edge-sensitive
ON = Start input is level-sensitive

Default Setting:

OFF

Parameter Type:

Configurable

Refer also to parameters:

P.000 Control Source

!

ATTENTION: Be aware of the following before enabling this function:

Setting this parameter to ON immediately applies output power to the

motor when all start conditions are met.

If the drive is running from the terminal strip, both the start and stop

inputs are closed. If P.054 = ON and a fault occurs, the drive coasts to

rest and generates a fault. In this case, resetting and clearing the fault

immediately restarts the drive without any change to the start or stop

input states

If P.026 (Function Loss Response) = 1, the control source is the

terminal strip (start and stop inputs are closed), and P.054 = ON, the

drive coasts to rest if the function loss input is opened and does not

generate a fault. In this case, closing the function loss input immediately

starts the drive without any change to the start or stop input.

When this function is enabled, the user must ensure that automatic start

up of the driven equipment will not cause injury to operating personnel or

damage to the driven equipment. In addition, the user is responsible for

providing suitable audible or visual alarms or other devices to indicate that

this function is enabled and the drive may start at any moment. Failure to

observe this precaution could result in severe bodily injury or loss of life.

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