PCC D3400 - Overshoot Test Procedure

Figure 6-10. Current Waveform After Adjustment of R111
REVERSE STROKE--;'I - FORWARD STROKE~
SEEK TIME SEEK TIME
35 MSEC (38 MSEC 200 TPI)* 35 MSEC (38 MSEC 200 TPI)*
"AVERAGE
TIME
Figure 6-11. Velocity Feedback Waveform, TP16
6.9.6 OVERSHOOT TEST PROCEDURE
The following steps are used to measure the overshoot of the positioner.
6.9.6.1
(1 )
(2)
Test Configuration
Prepare the positioner
as described in Paragraph 6.9.1.
Set the oscilloscope as follows.
• Set Channel 1 sensitivity to 0.2v per division.
• Connect Channel 1 test probe to TP20 (X + 0).
•
Connect EXT trigger 2 X10 test probe to TP12 on the Logic PCBA (Busy
Signal NLBSXG).
• Set sweep rate to 5 msec per division.
• Use normal sync, external.
6300