Specialized Concentrated Focused
Driver「99」
5.1.3 Parameter Setting of YASKAWA Σ-Ⅴ Servo Driver
Parameter input
prohibition setting
Set [0000]:
modification to user parameters [PnXXX] and part of
auxiliary function parameters [FnXXX] permitted;
Set [0001]:
modification to user parameters [PnXXX] and part of
auxiliary function parameters [FnXXX] prohibited.
Function selection
basic switch 0
Bit 0: Set 0, positive rotation at positive rotation
command; Bit 1: Set 1, position control mode (pulse
sequence command)
Format selection
switch of position
control command
Bit 0: Set 5, select the instruction mode as “pulse +
direction”, negative logic; Bit3: Set 0, input differential
signal into filter.
Bit 1: Set 0, Servo ON /S-ON, input from the 40th pin;
Set 7, Servo ON all the time; Bit 3: Set 8, positive
rotation not used and signal input (P-OT) prohibited.
Bit 0: Set 8, negative rotation not used and signal
input (N-OT) prohibited.
Output signal
selection 2
Set it when servo motor with brakes.
Bit 2: Set 3, brake interlock signal “/BK” is output from
CN1-29, CN1-30 to control 24V relay used for brake
Output signal
selection 1
Set it when servo motor with brakes
To avoid of CN1-29 and CN1-30 being used for other
function and leading to brake ineffective, 3 is not
allowed to appear in the 4 digits.
Brake instruction-
servo OFF and
time delay
Set it when motor with brakes
Default setting is “0”, setting unit is ms.
Electronic gear
ratio (numerator)
Pn20E = pulse No. of each encoder circle × 4 ×
mechanical deceleration ratio.
Pn210 = (lead screw pitch/ pulse equivalent).
Both numerator and denominator of electronic gear
ratio can be reduced, they are integers within
“1~65536”. Typical value: pitch 5mm, encoder 17-bit,
shaft coupler direct drag, pulse equivalent 0.001mm,
Pn20E＝16384; Pn210＝625.
Pitch 5mm, encoder 17-bit, shaft coupler direct drag,
pulse equivalent 0.0005mm, Pn20E＝8192; Pn210＝
625.
Electronic gear
ratio
(denominator)
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