Using the analog input to start and stop the drive – Rockwell Automation GV3000/SE AC Gen. Purpose and Vector Drive Software Start-Up and Ref. Manual User Manual

Page 215

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Using the Terminal Strip Analog Input

G-5

The maximum negative analog input value (-10 VDC) corresponds to the negative
torque limit of the drive (-150% of the rated motor torque).

The minimum analog input value (0 VDC or 0 mA) corresponds to zero torque
reference.

Refer to the GV3000/SE drive hardware reference manual for terminal location, wiring

guidelines, and jumper settings.

G.4 Using the Analog Input to Start and Stop the Drive

Important: To reduce the effects of electrical noise on the analog input, maintain

physical separation between the analog input signal wiring and any noise

sources including power and/or control wiring. The use of a shielded

twisted-pair cable with the shield terminated at one point only is

recommended for the analog input.

Setting P.011 (Terminal Strip Analog Input Configure) = 12 configures the analog

input as a 0-10 VDC input and to start and stop the drive based on the analog input

value:

The drive will start when the input becomes greater than the start threshold and all
other permissive conditions are met.

The drive will stop when the input becomes less than or equal to the stop threshold.

Refer to figure G.3.

!

ATTENTION:The drive may inadvertently start due to the effects of

temperature or electrical noise on the analog input when the analog input

is configured to start and stop the drive (P.011 = 12), and the following

conditions are true:

P.000 = rE

The function loss, stop, and start inputs on the terminal strip are all
closed.

The user is responsible for:

providing suitable notification to operating personnel that this feature is
being used and the drive could start at any time.

ensuring that the inadvertent starting of the driven equipment will not
cause injury to operating personnel or damage to the driven equipment.

ensuring that the input wiring has been installed according to IEEE
Standard 518 to minimize electrical noise.

Failure to observe this precaution could result in severe bodily injury or

loss of life.
ATTENTION:Due to the effect of temperature on the analog input, the

possibility exists that the stop threshold cannot be reached. The

application must rely on the terminal strip stop and function loss inputs

as the alternate methods of stopping the drive. Failure to observe this

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

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