
B-65222EN/03 START-UP 4.PARAMETER SETTING
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Parameter setting procedure (2)
Procedure (2) can be used to specify the parameters that depend on
the signal pitch of the scale. Set the parameters according to Table
4.1.1 (a), (b).
When using an absolute type linear encoder, calculate as follows:
Encoder signal pitch [µm] = 512 × resolution [µm]
The pole-to-pole span used in calculation varies, depending on the
motor model.
900D/4 or smaller linear motors: 30 mm
1500A/4 or larger linear motors: 60 mm
(See Table 4.1.1(c).)
1876 - Number of velocity pulses (PULCO)
2023 -
(Parameter calculation expression)
PULCO = 5000 × 20/(scale signal pitch [µm])
1891 - Number of position pulses (PPLS)
2024 -
(Parameter calculation expression)
PPLS = 16000 × 20/(scale signal pitch [µm])
#7 #6 #5 #4 #3 #2 #1 #0
1707 - APTG
2013 -
APTG(#7) When using an absolute type linear encoder, set this bit to:
1: Ignores an α pulse coder soft disconnection.
1705 - AMR conversion coefficient 1
2112 -
(Parameter calculation expression for not using AMR conversion
coefficient 2)
AMR conversion coefficient 1
= 512 × (60 [mm]/scale signal pitch [µm])
(Parameter calculation expression for using AMR conversion
coefficient 2)
AMR conversion coefficient 1
= 512 × 1000 × (pole-to-pole span [mm]/encoder signal pitch [µm]) /
2
(AMR conversion coefficient 2)
1761 - AMR conversion coefficient 2
2138 -
Usually specify 0 in this parameter. If AMR conversion coefficient 1
exceeds 32,767 or is not an integer, use AMR conversion coefficient
2.
(Parameter calculation expression)
(AMR conversion coefficient 1) × 2
(AMR conversion coefficient 2)
= Pole-to-pole span [mm] × 1000 × (512/encoder signal pitch [µm])