6-15
Communication
Address
Parameter Name & Functions Default Unit
Setting
Range
Control
Mode
RS232 RS485
Speed loop Gain 1
Sn211
Speed loop gain has a direct effect on the frequency
response bandwidth of the Speed-control loop.
Without causing vibration or noise Speed-loop-gain can
be increased to obtain a faster speed response.
If Cn025 (load Inertia ratio) is set correctly, the
speed-loop-bandwidth will equal to speed-loop-gain.
40 Hz
10
│
1500
Pi
Pe
S
530H 020BH
Speed-loop Integral time 1
Sn212
Speed loop integral element can eliminate the steady
speed error
and react to even slight speed variations.
Decreasing Integral time can improve system rigidity.
The formula below shows the relationship between
Integral time and Speed loop Gain.
ainSpeedLoopG
tTimeConsntegrationSpeedLoopI
×
×≥
π
2
1
5tan
100
x0.2
ms
1
│
5000
Pi
Pe
S
531H 020CH
Speed loop Gain 2
Sn213
Refer to Sn211
40 Hz
10
│
1500
Pi
Pe
S
53AH 020DH
Speed loop Integral time 2
Sn214
Refer to Sn212
100
x0.2
msec
1
│
5000
Pi
Pe
S
53BH 020EH
Value of zero speed
Sn215
Set the zero speed range in Sn215
When the actual speed is lower than Sn215 value, Output
contact ZS is activated.
50 rpm
0
│
4500
S 532H 020FH
Analog Speed Command Ratio
Sn216
Slope of voltage command / Speed command can be
adjusted.
Rate
rpm
rpm
/10V
100
│
6000
S 533H 0210H
Analog Speed Command offset adjust
Sn217
The offset amount can be adjusted by this parameter.
0 mV
-10000
│
10000
S 534H 0211H
Analog speed command limited
Sn218
Setting Sn218 for limit the highest speed command of
analog input.
Rate
rpm x
1.02
rpm
100
│
4500
S C11H 0212H
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