Siemens Sinamics G120 Series Parameter Manual page 290
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Table of Contents
Parameters
List of Parameters
p9680
SI braking ramp delay / SI braking delay
CU240S DP-F
Access level: 3
Quick comm. NO
Can be changed: -
Min
10 [ms]
Description:
Time [in ms] between selecting the safe stop 1 and the activation of the monitoring ramp. The actual frequency is
compared to the frequency of the monitoring ramp when the SS1 is active. If the actual frequency exceeds that of
the monitoring ramp, a passivated safe torge off (passivated STO) is generated.
For applications with changing loads, an increase of p9680/p9880 or p9691/p9891 is recommended. A larger devi-
ation of the actual frequency from the reference is then acceptable.
Note:
A value of 99000 deactivates the SS1 monitoring. Set p9880 accordingly. The ramping on selection of SLS or SS1
will however still follow the ramping time in p9681/p9881.
p9681
SI braking ramp down time / SI braking down ti
CU240S DP-F
Access level: 3
Quick comm. NO
Can be changed: -
Min
100 [ms]
Description:
Defines the braking ramp down time for the safe stop 1 (SS1) in milliseconds. The ramp down time is used for the
SS1 and the monitoring ramp.
The total braking time Tx can be derived where fx is the current frequency according to the following formulas:
a) For activation of the SLS:
Tx = p9681 * (fx - p9690) / 200 Hz
b) For activation of SS1:
Tx = p9681 * (fx - p9682) / 200 Hz
Note:
In contrast to other ramping times (e.g. p1120, p1121), the safety braking time is referred to 200 Hz and not to
p1082. See formulas above.
p9682
SI minimum frequency for standstill detection / SI min standstill
CU240S DP-F
Access level: 3
Quick comm. NO
Can be changed: -
Min
2.0 [Hz]
Description:
A frequency below the threshold of p9682/p9882 is considered standstill.
If the SS1 has been selected, the safe torque off (STO) will be activated.
p9690
SI setpoint for SLS / SI setpoint SLS
CU240S DP-F
Access level: 3
Quick comm. NO
Can be changed: -
Min
2.0 [Hz]
Description:
Frequency setpoint that is used when the safely limited speed (SLS) is selected.
Depending on the setting in p9692/p9892 the frequency of p9690/p9890 may also serve as a frequency threshold
instead of a setpoint.
(see p9692)
Note:
For applications with changing loads, an increase of p9680/p9880 or p9691/p9891 is recommended.
If the "safely limited speed" (SLS) is selected while the output frequency is below the setpoint value, Bit04 and Bit05
will be set simultanously in r9772.
1-290
P-Group: Safety Integrated
Active: NO
Max
99000 [ms]
P-Group: Safety Integrated
Active: NO
Max
99000 [ms]
P-Group: Safety Integrated
Active: NO
Max
20.0 [Hz]
P-Group: Safety Integrated
Active: NO
Max
300.0 [Hz]
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
Data type: Unsigned32
Data set: -
Factory setting
250 [ms]
Data type: Unsigned32
Data set: -
Factory setting
10000 [ms]
Data type: Floating Point
Data set: -
Factory setting
5.0 [Hz]
Data type: Floating Point
Data set: -
Factory setting
10.0 [Hz]
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