5 - 11
5. PARAMETERS
Class No. Symbol Name and function
Initial
value
Unit
Setting
range
Control
mode
20 *OP2 0000 Refer to
name
and
function
column.
S
P S
Function selection 2
Used to select restart after instantaneous power failure,
servo lock at a stop in internal speed control mode, and slight vibration
suppression control.
0: Invalid (Undervoltage alarm
(AL.10) occurs.)
1: Valid
Restart after instantaneous
power failure
Stop-time servo lock selection
The shaft can be servo-locked to
remain still at a stop in the internal
speed control mode.
0: Valid
1: Invalid
Slight vibration suppression control
Made valid when auto tuning selection is
set to "0400" in parameter No.2.
Used to suppress vibration at a stop.
0: Invalid
1: Valid
Encoder cable communication system selection
Incorrect setting will result in an encoder alarm 1
(AL.16) or encoder alarm 2 (AL.20).
0: Two-wire type
1: Four-wire type
If the power supply voltage has
returned to normal after an
undervoltage status caused by the
reduction of the input power supply
voltage in the speed control mode,
the servo motor can be restarted by
merely turning on the start signal
without resetting the alarm.
P
S
Expansion parameters 1
21 *OP3 Function selection 3 (Command pulse selection)
Used to select the input form of the pulse train input signal.
(Refer to section 3.4.1.)
Command pulse train input form
0: Forward/reverse rotation pulse train
1: Signed pulse train
2: A B-phase pulse train
Pulse train logic selection
0: Positive logic
1: Negative logic
0 0
0000 Refer to
name
and
function
column.
P
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