Elmo SERVO AMPLIFIER DBP SERIES - Manual (Page 90)

89
DBP - Rev 6/93
10 bit = 1040 rps
12 bit = 260 rps
14 bit = 65 rps
16 bit = 16.5rps
Resolution DS13 DS14
10 ON ON
12 ON OFF
14 OFF ON
16 OFF OFF
Note:
- Each resolution change must be followed by new components selection
procedure.
- When changing resolution under dynamic conditions, a period of uncertainty
will exist before position and velocity data is valid.
Encoder resolution
In the STD mode (DS12 OFF), the encoder signals A,B are created by the EPLD
and can have only the following basic resolutions (for 2 pole Resolver):
256 for 10 bits
1024 for 12 bits
4096 for 14 and 16 bits
When the Resolver is more than 2 poles, the resolution for one shaft
rotation will be:
Er = QxS / 8
Q = number of Resolver poles ;
S = resolution of converter (2
10
,2
12
,or 2
14
)
When different encoder resolution is needed the encoder signals are
generated by the EPROM and the R/D resolution is no longer user selectable.
This option requires
- DS12 at ON
- Special EPROM which is programmed for this resolution.