Mitsubishi Electric MELSEC Q Series User Manual page 236

APPENDICES
(2) System configuration
The configuration figure for 1 axis absolute position system of 1 axis assumed
by the sequence program is shown below.
Battery
(a) Setting for the electronics gear
Command unit
Ball screw lead
Encoder resolution : Pt = 262144[PLS/rev]
Gear ratio
AP Pt
AL = S = n × Pb =
" Electronic gear numerator" = 8192,
Pr.0
" Electronic gear denominator" = 3125
Pr.2
(b) Unit of the positioning address and command speed
The command unit of the QD74MH is PLS only. When an electronic gear is
set, programming in units of [mm] is possible.
When the command unit is 0.1[µm], "
amount" and "
0.1[µm].
POINT
When the command unit is 0.1[µm] = 1[PLS], the ball screw lead of 10[mm] is
100000 [PLS]. When the electronic gear numerator (AP) and denominator (AL) are
calculated by this value, the command unit can be either PLS or 0.1[µm].
CN1
External I/O
: 0.1[μm]
: Pb = 10[mm] = 100000[×0.1μm]
: n = 1/1
Pt 262144 8192
=
1 3125
1 × 10000
Command speed" can also be set using units of
Da.4
APP - 3
MELSEC-Q
Equipment configuration
Base unit
Power supply module
PLC CPU module
QD74MH8
Servo amplifiers
Servomoter
Ball screw lead
Positioning address/movement
Da.6
MR-J3-10B
HF-KP13
10[mm]