美国LinMot直线电机用户手册(15)

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LinMot®

System Overview1. Example: Online specification of an exact reference curveAn higher-level control system outputs a reference curve online for the motor to follow exactly. Solution: Operating mode‘ analog’ without limiting filter settings.PC/ PLC‘ analog out’ LinMot® P t s s LinMot® E‘ analog out’ mode:‘ analog’

t

2. Example: Online specification of any reference curveAn higher-level control system outputs position set values online for the motor to follow smoothly. Solution: Operating mode‘ analog’ with vmax/amax filter activated.‘ analog out’ PC/ PLC t s s t aamax

mode:‘ analog’

LinMot® P

‘ analog out’

LinMot® E

t-amax

3. Example: Digital selection between two set valuesFollowing a digital high/low signal from a PLC, the motor moves between two given positions with presettable maximum acceleration and speed. Solution: Operating mode:‘ Two Point’ . Acceleration limiter and speed limiter set to the desired maximal values.‘ digital out’high

low

t s PC/ PLC t v s LinMot® E t LinMot® P‘ digital out’ mode:‘ position’ two

vmax

-vmax

aamax

t-amax

User Manual V1.01

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Sulzer Electronics AG

非常好的直线电机样本

LinMot®

System Overview4. Example: Digital selection between two reference curvesFollowing a trigger signal from a PLC, the motor moves between two given position following predefined trajectories. Solution: Operating mode:‘ Trigger Curve’ . Acceleration limiter and speed limiter set to the desired maximal values.‘ trigger out’high

low

t s PC/ PLC t v s LinMot P®

mode:‘ position’ two

‘ trigger out’ LinMot® E

vmax

t-vmax

aamax

t-a max

5. Example: Periodical movement sequenceThe motor executes a previously defined curve cyclically with a given frequency.high

‘ digital out’ PC/ PLC t s s LinMot® P‘ digital out’ LinMot® E mode:‘ continuous’

Solution: Operating mode:‘ Continuous Curve’ . Acceleration limiter and speed limiter set to the desired maximal v

alues.

low

t

6. Example: Synchronization on a speed valueA linear movement should be executed from a particular point and with a previously defined speed. Solution: Operating mode:‘ Analog’ Two,’ Position’ or‘ Trigger Curve’ . The reference position should be set in such a way, that the speed limiter will be active in the synchronization range.

‘ digital out’high

PC/ PLClow

t s LinMot® P s t v‘ digital out’

ssync

mode:‘ continuous’,‘ position’ two or‘ curve’

LinMot® E

vsync

t

User Manual V1.01

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Sulzer Electronics AG

非常好的直线电机样本

3.6.3 Connection to higher-level control systems

The electronic units LinMot® E can be controlled by higher-level control systemsdirectly by means of analog or digital input/output signal lines. The necessaryparameterisation is done with the LinMot® Talk software via an RS-232 working via CAN-bus or RS-232 is also possible on specific customer request.

Figure 3-4: Connecting LinMot® to an higher-level control system

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3.7 Protection and error behavior

3.7.1 Internal protection functions System Overview

The integrated sensors and complex monitoring programs allow the detection andhandling of thermal overloading of the LinMot® E and P components by means ofwarning and/or error messages. There is further the possibility to monitor the voltagesupply of the LinMot® E electronic units for overvoltage and undervoltage. If thehigher-level control system does not respond to the warning and error messages, theactuators will be shut down for safety reasons.

3.7.2 Monitoring functions

The so-called following error monitoring and the position range monitoring offer twopowerful functions for the monitoring of the actual movement processes.Following error monitoringPosition range monitoring

3.7.3 Emergency stop possibilities

From the point of view of the higher-level control system there are two ways to handle® the LinMot actuators in case of an emergency stop:

With the so-called FREEZE signal the drives can be stopped and maintained in

their current position. The movement is resumed when the FREEZE signalbecomes inactive again.

By means of the STOP signal the drives can be driven to a predefined emergency

stop position or shut down.

3.7.4 Emergency stop through supply interruption

As the LinMot® electronic units feature separate supplies for the signal circuitry andthe power circuitry, an emergency stop can also be forced by directly interrupting thepower supply to the power circuits. As long as the signal circuitry remains powered,the initialization and actual position of the LinMot® P actuators are not lost. Thereforeit is possible to resume operation without needing to re-initialize the drives.