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MELSEC-Q
10. POSITIONING DEBUGGING
10.4 Test
Place the QD75 in the test mode during operation monitor, and test the positioning
start, present value change, speed change, OPR, JOG or MPG operation.
Each operation can be tested in the cableless test mode using just the QD75.
!
CAUTION
Before performing the OPR, JOG operation, positioning data or other test in the test
mode, read the manual carefully, fully ensure safety, and set the PLC CPU to STOP.
Incorrect operations can damage the machine or cause an accident.
(1) Test mode ON operation
Perform the following operation to place the QD75 in the test mode.
1. Set the required project as the active project.
Refer to Section 5.2 for the active project setting.
2. Click the [Online]
[Test]
[Test On/Off] menu ( ).
3. Click the "Yes" button in the all displayed window closing confirmation dialog
box.
4. Click unchecked "Agreement with Module data" in the following dialog box.
5. Choose QD75 Write or QD75 Read and click the the "OK" button.
Refer to Section 9.1 for QD75 write and QD75 read.
6. Click the "OK" button in the test mode confirmation dialog box.
7. To exit from the test mode, click the [Online]
[Test]
[Test On/Off] menu(
).
(1) When conducting a test in the cableless mode, you cannot perform start,
velocity/position switching and position/velocity switching under the control of
external input signals and OPR which requires near point dogs and zero phase
signal.
Since the feed present value cannot be cleared by OPR, make the present value
change test (refer to Section 10.4.2) to clear it.
(2) If an error occurred due to cable disconnection during a test in the wiring-less
mode, an attempt to shift to the test mode again after cable reconnection may
display the dialog box "The module is already under TEST MODE." In this case,
shift to the test mode after resetting the PLC CPU.
(3) In the test mode, JOG or other operation may respond slower depending on the
running condition of the personal computer.
In such a case, take the following actions.
• Close all applications except SW
D5C-QD75P-E so that they are not run
concurrently.
• Set the transmission speed to 38.4kbps or higher in Connection Setup (refer to
Section 7.1).