Description
140NOM21200C MODICON PLC Module Schneider
Digital encoders use a serial transfer protocol. This protocol is called EnDat. The EnDat protocol is a developed standard that incorporates the advantages of absolute and incremental position measurement and also offers a read/write parameter memory in the encoder. The 140NOM21200C is stored by B&R in this encoder memory. This data and the B&R ACOPOS systems form a plug-and-play drive solution. Absolute positioning can be used within a revolution with the single-turn variants. A homing procedure is not required because of the absolute position measurement. For applications where the motor covers several revolutions for positioning, a multi-turn encoder that can save up to 65535 revolutions can be used. A solution with a single-turn encoder variant with a homing procedure is also possible. In EnDat 2.1 analog/digital sampling, a very fine resolution is achieved by the evaluation modules developed by B&R.A smooth shaft end is used for a force-fit shaft-hub connection and guarantees a backlash-free connection between the shaft and hub as well as a high degree of operating smoothness. The end of the shaft has a threaded center hole.
140NOM21200C MODICON PLC Module Schneider
140NOM21200C MODICON PLC Module Schneider
A keyed shaft end is used for a form-fit torque transfer with low demands on the shaft-hub connection and for handling torque in a constant direction.The keyways for 8LS three-phase synchronous motors conform to keyway form N1 per DIN 6885-1. Form A keyed shafts that conform to DIN 6885-1 are used. Balancing motors with keyways is done using the shaft and fitment key convention per DIN ISO 8821.The end of the shaft has a threaded center hole that can be used to mount machine actuators with shaft end cover plates.The 140NOM21200C is output by the motor at the speed n0 and when the stall current is being applied.This is possible for any length of time if the ambient conditions are correct. Speed n0 must be high enough for the temperature in all windings to be homogeneous and stationary (for B&R motors, n0 = 50 rpm). The continuous torque is reduced when the motor is at a complete standstill.The stall current is the RMS value of the phase current (current in the motor supply line) for generating the stall torque at speed n0. This is possible for any length of time if the ambient conditions are correct. Speed n0 must be high enough for the temperature in all windings to be homogeneous and stationary (for B&R motors, n0 = 50 rpm).
140NOM21200C MODICON PLC Module Schneider
140NOM21200C MODICON PLC Module Schneider
Work on motors and their wiring is only permitted to be carried out by qualified personnel without voltage applied. The control cabinet must first be disconnected from the power supply and secured against being switched on again.If live parts are touched, there is immediate danger of fatal electric shock.
If connections are connected or 140NOM21200C in the wrong order or when the power is switched on,electric arcs can occur and persons and contacts can be damaged.Even if the motor is not rotating or is running as a generator driven externally, the control and power connections can still carry voltage!
• Never touch connections when the power is switched on.
• Never disconnect or connect electrical connections to the motor and servo drive when the power is switched on!
• Do not stay in the danger zone during operation and secure it against access by unauthorized persons.
• Always operate the motor with all safety equipment. Do this even during short testing and trial operations!
• Keep all covers and control cabinet doors closed during operation and as long as the machine is not disconnected from the power system.
• Before working on motors, gearboxes or servo drives or in the danger zone of your machine,disconnect them completely from the power system and secure them against being switched on again by other persons or automatic systems.
• Note the discharge time of any existing DC bus.
• Only connect measuring instruments when the power is switched off!
140NOM21200C MODICON PLC Module Schneider
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