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5. PARAMETERS
No.
Symbol
PSA12
**SLSS2
SLS speed 2
Set a threshold of a safety speed for when the SLS function operates by the SLS2
command. When an absolute value of the servo motor speed exceeds this value during
speed observation of the SLS function, the STO function will operate.
PSA13
**SLSS3
SLS speed 3
Set a threshold of a safety speed for when the SLS function operates by the SLS3
command. When an absolute value of the servo motor speed exceeds this value during
speed observation of the SLS function, the STO function will operate.
PSA14
**SLSS4
SLS speed 4
Set a threshold of a safety speed for when the SLS function operates by the SLS4
command. When an absolute value of the servo motor speed exceeds this value during
speed observation of the SLS function, the STO function will operate.
PSA15
**SLST
SLS/SS2/SOS speed detection delay time
Specify filtering time of the delay filter which decides whether a servo motor speed exceeds
or below a threshold during speed observation. Response time of speed observation will
be affected by this parameter setting. This parameter affects the following response time.
Time after the speed excesses during speed observation of the SLS function until the
STO function starts
Time after the speed decelerates lower than standstill speed during speed observation of
the SS2/SOS function until the stop observation (SOS) starts (compatible with MR-D30
with software version A1 or later and servo amplifier with software version B5 or later)
Time after the speed accelerates higher than standstill speed during stop observation
(SOS) of the SS2/SOS function until the STO function starts (compatible with MR-D30
with software version A1 or later and servo amplifier with software version B5 or later)
PSA17
**SOSPT
SOS position detection delay time
Set a filtering time of the delay filter which decides that motor position excesses a
threshold at position observation. Response time of position observation will be affected by
this parameter setting. This parameter affects the following response time.
Time after the position deviation of position feedback becomes out of allowance value of
position deviation during stop observation of the SS2/SOS function until the STO
function starts
This parameter is used with MR-D30 with software version A1 or later, and servo amplifier
with software version B5 or later.
PSA18
**SSMS
SSM speed
Set a threshold of a safety speed for when the SSM function operates. SSMS (SSM output)
will turn off when an absolute value of the servo motor speed exceeds this speed and will
turn on when the value is below this speed. However, these decisions have hysteresis
specified with [Pr. PSA19].
When an alarm which disables SSM occurs, SSMS (SSM output) will turn off.
PSA19
**SSMHW SSM hysteresis width
Set a hysteresis width of the SSM function speed decision. Be sure to specify a value
lower than [Pr. PSA18]. When setting a value of [Pr. PSA18] or more will trigger [AL. 7A.3
Parameter combination error (safety observation function)].
PSA20
**SMERL
Motor encoder revolution - Low
Set an encoder resolution of the servo motor.
Set lower four digits in decimal numbers with this parameter.
PSA21
**SMERH Motor encoder revolution - High
Set an encoder resolution of the servo motor.
Set upper four digits in decimal numbers with this parameter.
Please do not set "0" for the servo motor encoder resolution (either [Pr. PSA20] or [Pr.
PSA21]).
When setting "0" will trigger [AL. 7A.3 Parameter combination error (safety observation
function)].
When the value set for the servo motor encoder resolution ([Pr. PSA20] and [Pr. PSA21])
is not match with the resolution of the actually connected encoder, [AL. 7A.3 Parameter
combination error (safety observation function)] will occur.
PSA22
**SAADT
Position feedback fixing error detection time
Set a time until [AL. 79.8 Position feedback fixing error] is detected.
Setting "0" will disable a diagnosis for [AL. 79.8 Position feedback fixing error].
Name and function
5 - 9
Initial
Setting
value
range
[unit]
50
0
[r/min]
to
10000
50
0
[r/min]
to
10000
50
0
[r/min]
to
10000
0
0
[ms]
to
2000
0
0
[ms]
to
2000
50
0
[r/min]
to
10000
20
0
[r/min]
to
10000
4304
0
[pulse/
to
rev]
9999
419
0
[×10000
to
pulse/
9999
rev]
60
0
[min]
to
65535
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