ABB HIER466587R0200 Base TU831V1 in stock

Description

In Master-Follower systems it should be observed that:

• Super-synchronous mode is not a controllable speed mode, i. e. set parameter 09.08 (SUP_SYNC) to 0
• Master-Follower control cannot be used for shared motion, drive types 12 or 22.
• Cabin I/O must be used.
• The speed shall be kept in the controllable range, i. e. set parameter 08.17 (NREF_RED) to a value below

which the motor voltage is full line voltage; NREF_RED can typically be 80 .. 85%.

Limit switches

Description for Release 10_01 to 10_04

The stop limit switch of the master drive shall under normal conditions be the one stopping the motion. Approach

ing the end from the middle of the range, the Master’s stop limit switches shall be the first to hit. The Followers stop

limit switch serves only as back up. When an over travel limit switch is used for a Master Follower motion, the nor

mal stop limit switch of the Follower can be set to “Not used” in the follow mode parameter set. In the single drive

mode it shall be set to “Used”.

Description for Release 10_04A and newer

The position of slow down and stop limit switches of the Follower are included in the M-F communication. Motion

stops (or slows down) based on OR-condition of the Masters and Followers switches. The evaluation of invalid

combination of limit switches remains unchanged; Follower reports error if the Follower’s limit switches are invalid,

and Master reports error if its limit switches are invalid. Both Master and Follower limit switch error stops the mo

tion (AST10_04A)

The functionality in the previous releases still remains unchanged. A control board DAPC 100 with software

AST10_03A can fully replace an older board, using same parameters.

The new features are controlled with two control signals A and B that give different options for various Sub-modes

control for the Follower in Master-Follower communication.

Master (parameter 20.01 = 1) is always speed controlled.

Follower mode (parameter 20.01 = 2) is controlled within the same parameter set in following way:

Sub A B Follower mode control

MF1 0 0 Speed control by electrical shaft, only mode until Release AST10_03.

MF2 0 1 Speed control by own reference, for tilting, skew control etc

MF3 1 0 Speed control with torque compensation, used in four rope grab cranes and

control of load sharing motion control. Requires DARA 1001.

MF4 1 1 Speed control by speed compensation; aim is same speed rather than same

position

• New features are not available for motions with parallel thyristor bridges, sizes from 1260 A and above.

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