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For how to control the field supply, see Parameter P Setting of the square-wave generator: It provides details of lubrication type, lubrication quantity and relubrication intervals.

Define ON signal via terminal 37 and operating enable via terminal Finally, make the parameter changes for FDS2. If the device does respond as required, always check the operating status. Direct sensing of the line voltage on the power section does not result in dependency of the assignment of the phase angle for the power section with respect to the electronics current supply. Function data set FDS: As RF interference is lower on DC drives than on AC drives with frequency converters, filters are only implemented on the former if the customer makes a special request.

The index of the parameter is displayed if it exists when P is pressed, e. If the controlled system contains two especially large lags, a PID controller must be used with an integral-action time corresponding to the smaller of the two. The occurrence of an alarm indicates a special status of the device, but does not initiate mqnual device response and has no effect on operation.

Sheet G Display of connector contents: The speed control stability is specified in the technical data of the Operating Instructions.


The bridge circuit comprises two controlled valves thyristors and two uncontrolled valves diodes. By implementing suitable current actual value acquisition in 6RA70, fast reversal of the torque direction is possible typically 3.


The cause of a fault can be derived from the Trace evaluation. A suitable load at V line voltage would be, for example, two watt V light bulbs in series. Proportional transfer element There is no time delay between input and output, only the amplitude of the output is less than or greater than the input. In any case, protection is provided by the additional CCP see below. The version zz of the module is irrelevant, all previously supplied versions of the module bearing an item number identical up to the L number, are compatible.

For double-word connectors KKxxxx, the bit word is transmitted to two subsequent positions of the PZD with 16 bits each. Extent of step change approx. Only here will you find the necessary information regarding correct parameterization and optimization of the closed-loop control! After a protracted operating time, the motor must be dismantled and the winding also freed from brush dust. The current limits have no affect in controlled operation, only the set firing angle limits for Alpha G and Alpha W have an effect.

Two or more thyristors of the power section broken down. Fuse tripping of the armature infeed occurs sporadically: If a permanently excited DC motor excitation via permanent magnets in the motor stator is used, the rotor must be locked during current controller optimization. A precontrol is active at the same time and has a different characteristic curve than the armature current control loop because it includes a half-controlled bridge circuit.

The drive coasts down.


The advantage of current measurement on the infeed side is that an AC probe can be used for current measurement with the oscilloscope or recorder, which is more readily available than a DC probe for measurement in the DC circuit. If the device is in operation, condensation is prevented by its own heat dissipation.


The power supply for electronics modules CUD1, CUD2, and other electronic expansion modules is however electrically isolated from the line voltage.

Order L04 ex works, a retrofit involves a lot of work. Four values can be set via the four indices, of which the highest value of the connector contents acts as the limitation.

To parameterize via Profibus, enter an odd number, for example, 7. The gate pulse transformer receives the chopped pulses, see below. The parameter factory setting is always given in brackets next to the parameter numbers in the circuit diagram, e. Perform controller optimization with Kp, P and Tn, P in the continuous current range.

The field supply device is current controlled, i.


The rated device field current r If the motor was already being operated with a converter and a smoothing reactor is in use, this must be retained when the 6RA70 is retrofitted. If the dead time is 6r27 small, it can be treated like a first-order lag element for calculation purposes. Calculation of all open-loop and closed-loop control functions for armature and field with direct generation of the firing pulses for the thyristors using 2 microprocessors.

For the connector – binector list see Chapter 12 of the Operating Instructions. If necessary, remove the rotor and skim the commutator on the lathe, then the slots, for example, must be reworked with a special saw. Control for setting U Switchover of the setpoint source possible by switching over the FDS. Time equation and frequency response Every linear system can be described by one or more coupled linear differential equations.