第七章单元测试
- The servo system of Panasonic minas-a5 or minas-a6 series selected by YL-335B equipment has position control, speed control, torque control and other control modes. YL-335B only uses position control mode, which is the most basic and commonly used control mode according to the position command (pulse train) input from the upper controller (PLC).（ ）
- Panasonic MINAS A5 series AC servo motors and drivers are extremely simple to set and adjust; the matching motor adopts 20 bit incremental encoder, which has high stability on low rigid machines and can operate on high-speed and high-precision machines, so it is widely used in various machines.（ ）
- The rotation direction of AC servo motor can not be changed by exchanging three-phase phase sequence like induction motor. It must be ensured that the U, V, W and E terminals on the driver correspond to the main circuit terminal of the motor one by one according to the specified sequence, otherwise the driver may be damaged.（ ）
- The servo driver has various parameters to set its characteristics and functions. The parameters can be divided into seven categories: Class 0 (basic setting); category 1 (gain adjustment); class 2 (vibration suppression function); class 3 (speed, torque control, full closed loop control); class 4 (I / F monitor setting); class 5 (extended setting); class 6 (special setting). The method of setting parameters is to set the parameters on the special debugging software after connecting with PC and on the front panel of the driver. The servo parameters of YL-335B are not set much, only on the front panel.（ ）
- Parameter initialization operation belongs to auxiliary function mode. Press the "mode" key to select the auxiliary function mode, appears the selection display "AF_ACL ", and then press the up key to select the auxiliary function. When" af-ini "appears, press" set "key to confirm, that is to enter the parameter initialization function, and the execution display" ini - ". Continue to press the up key (about 5 seconds), when " StArt " appears, the parameter initialization starts, and when "finish" appears again, initialization ends.（ ）
- In YL-335B equipment, the servo system works in position control mode. The high-speed pulse output terminal of PLC outputs pulse as the position command of servo driver. The number of pulses determines the rotation displacement of servo motor, that is, the linear displacement of manipulator; the frequency of pulse determines the rotation speed of servo motor, that is, the movement speed of manipulator; another output point of PLC is used as servo driver Direction command.（ ）
- If YL-335B equipment is in operation, it may lead to equipment damage accident, so the parameter pr5.04 is set to 2. At this time, the servo motor stops immediately. Only when the overtravel signal is reset and the driver is powered on again after power failure, the alarm can be reset.（ ）
- In YL-335B, the number of synchronous teeth connected by the servo motor is 12 and the pitch is 5mm. Therefore, the grab manipulator moves 60 mm every rotation. In order to facilitate programming calculation, it is expected that the pulse equivalent is 0.01 mm, that is, when the servo motor rotates once, it needs to send 6000 pulses from PLC, so Pr0.08 should be set to 6000.（ ）
- PLC must search the origin position, so as to establish the coordinate system of motion control before positioning control. The positioning control starts from the origin, records the current position of the control object, and drives the control object to move according to the requirements of the target position.（ ）
- In positioning control, the target position can be specified in two ways: one is to specify the displacement from the current position to the target position; the other is to specify the target position directly. For the coordinate value of the origin, PLC automatically calculates the displacement of the target position according to the current position information to realize the positioning control. The former is relative driving mode, and the latter is absolute driving mode.（ ）
- The servo system in YL-335B equipment works __________in the system.（ ）
- _____________is the origin regression command.（ ）
- _____________is the absolute position control command.（ ）
- _____________is a variable speed pulse output command.（ ）
- parameters to be set for servo system in yl-335b equipment__________The parameter setting is the electronic gear ratio.（ ）
A:对 B:错
答案:对
A:对 B:错
A:对 B:错
A:错 B:对
A:对 B:错
A:对 B:错
A:错 B:对
A:错 B:对
A:对 B:错
A:错 B:对
A:Frequency conversion control mode B:Speed control mode C:Position control mode D:Torque control mode
A:PLSV B:DZRN C:DDRVI D:B.DDRVA
A:DZRN B:DDRVA C:DDRVI D:PLSV
A:DDRVI B:DDRVA C:PLSV D:DZRN
A:Pr0.01 B:Pr0.00 C:Pr0.08 D:Pr5.28
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