Lenze 4800 User Manual

Configuration
7-39
48XX/49XXSHB0399
7.3 Digital frequency coupling
General description of the system
The digital frequency coupling described here enables a digital set-value
transmission and evaluation between a set-value source and one or more
controllers. The transmission path can be used as bar or cascade for:
( Phase-synchronous running
( Speed-synchronous running
( Speed-ratio synchronism or
( Position controls with drift-free standstill
In every controller, the set-value can be evaluated with a factor and output with
a gain at the corresponding digital frequency output.
The digital frequency coupling is a pure digital set-value transmission with all of
its advantages:
( drift-free
( extremely precise
( increased noise immunity
Therefore, three configurations are offered:
( Master, C005 = -52-, -53-
( Slave for digital frequency bar, C005 = -62-, -63-
( Slave for digital frequency cascade, C005 = -72-
Set-value conditioning
In the set-value branch, the speed and phase set-values are processed as
absolute values.
Gearbox factors (C032 and C033)
The evaluation factors C032 and C033 are in the set-value channel of the
corresponding drive (slave). They are used to set the gearbox factor.
Setting range of the factors:
( C032 from -3.2767 to +3.2767
( C033 from +0.0001 to +3.2767.
The quotient is limited to max. 32767.
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Lenze 4800 Specifications

General

Brand	Lenze
Model	4800
Category	Controller
Language	English

Summary

Safety information

General safety information

Provides essential safety notes for operation, potential hazards, and general precautions.

Technical Data

Features

Outlines the key controller and system features, including operational capabilities and interface options.

Rated data

Details electrical ratings, including output power, voltages, currents, and thermal data for different controller types.

Installation

Electrical installation

Details electrical safety, connection procedures, and isolation requirements.

Commissioning

Initial switch-on

Guides through the initial power-up procedure, wiring checks, and essential switch-on sequence.

Input of the motor data

Explains the importance and method for inputting motor nameplate data for accurate controller calculations.

Controller enable

Details the conditions and methods for enabling the controller via terminal or LECOM interface.

During operation

Configuration

Speed controlled operation

Covers configuring the drive for speed control, including detailed set-value selection methods.

Torque control with speed limitation

Explains how to set up the drive for torque control while maintaining speed limitations.

Troubleshooting and fault elimination

Troubleshooting

Guides users through identifying and resolving operational issues using controller displays and status information.

Fault analysis with the history buffer

Explains how to use the history buffer to trace and analyze faults for effective troubleshooting.

Fault messages

Signal-flow charts