YASKAWA SGM H Series User Manual page 532

(1) Specifications of Single-turn Data Absolute Encoder Model UTSB -B
Item
Battery for absolute encoder
Absolute encoder multi-turn reset function
(Setup and encoder alarm reset)
Fn013: Multiturn limit setting change when a
multiturn limit disagreement alarm (A.CC)
occurs
Pn205: Multi-turn limit setting
Pn002.2: Absolute encoder usage
PAO serial data
PSO serial data
Initial incremental pulse output time
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Specifications
Not required
(Because no multiturn data needs to be stored.)
Set to NO_OP and disabled
Set to NO_OP and disabled
Can be set, but the setting of Pn205 does not have any effect.
The alarm A.CC does not occur when the setting is changed. And the
multi-turn data is always "0" regardless of the Pn205 setting.
Same as for the multi-turn absolute encoder
Pn002.2=0: Use the absolute encoder as an absolute encoder
Pn002.2=1: Use the absolute encoder as an incremental encoder
The transmission format is the same as that of multi-turn absolute data
However, the data section is always set to "0" as follow.
P+00000 [CR]
The transmission format is the same as that of multi-turn absolute data
However, the data section is always set to "0" as follow.
P+00000, nnnnnnn [CR]
Note: n represents the absolute value within one rotation.
The output pulse frequency is not changed. Therefore, the initial incre-
mental pulse output time increases according to the number of bits of the
mounted encoder.
As the maximum resolution of the existing specification is 16 bits, the
output time is 25 ms. With 20-bit encoder, the output time is 386 ms.
The equation to obtain the output time by the number of bits of encoder is
given below. The output time obtained by the equation is the minimum
required time.
n
2
T =
170×62.5×1000
T: Minimum time required to output initial incremental pulses
n: Number of encoder bits
65536
Ex.) 16-bit encoder:
T =
170×62.5×1000
1048576
20-bit encoder:
T =
170×62.5×1000
10.4 Improved Functions
= 24.094 25ms
→
= 385.506 → 386ms
10-17
10