Ricoh PRIPORT VT 2000 Series Service Manual page 64

Reduction
Ratio
Pulse Width
100% 1.484 ms
93% 1.378 ms
82% 1.214 ms
75% 1.112 ms
71% 1.060 ms
64% 0.950 ms
0
A Phase
B Phase
C Phase
D Phase
E Phase
When the reduction command is sent from the main board, the frequency of
the pulses from the pulse generator increases. The drive pulse generator
then increases the frequency of the motor drive pulses to increase the
motor rotation speed.
Original Transportation
PPS
674
674
726
726
674
824
824
674
899
899
674
944
944
674
1053
1053
1 2 3 4
Command Sheet Transportation
Pulse Width
---- 0.742 ms
= 0.928 0.689 ms
=0.818 0.607 ms
=0.74 0.556 ms
=0.714 0.530 ms
=0.64 0.475 ms
5 6 7 8
2-37
28 February '91
PPS
1348
1348
1451 1451 =0.928
1348
1648 1648 =0.818
1348
1798 1798 =0.749
1348
1888 1838 =0.714
1348
2106
2106
9 10 11 12
----
=0.640
13