Diagnostic Value '23.Impup - Impulse Length Up' / '24.Impdn - Impulse Length Down; Diagnostic Value '25.Pautp - Pulse Interval; Diagnostic Value '26.Dbup - Deadband Up' / '27.Dbdn - Deadband Down; Diagnostic Value '28.Ssup - Slow Step Zone Up' / '29.Ssdn - Slow Step Zone Down - Siemens SIPART PS2 Operating Instructions Manual

11.2.4.20

Diagnostic value '23.IMPUP - Impulse length UP' / '24.IMPDN - Impulse length DOWN'

Display range:
Purpose:
Factory setting:
11.2.4.21

Diagnostic value '25.PAUTP - Pulse interval'

Display range:
Purpose:
Factory setting:
11.2.4.22

Diagnostic value '26.DBUP - Deadband UP' / '27.DBDN - Deadband DOWN'

Display range:
Purpose 1
11.2.4.23

Diagnostic value '28.SSUP - Slow step zone UP' / '29.SSDN - Slow step zone DOWN'

Display range:
Purpose:
Factory setting:
SIPART PS2 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00127926-AB
6 ... 160
The smallest impulse lengths that can be used to move the actuator
are determined during the initialization process. They are separately
determined for the 'Up' and 'Down' directions and displayed here.
Display in ms.
In the case of special applications you can additionally set the small‐
est impulse lengths in these two parameters.
6
2 ... 320
This value is not changed during an initialization process. Display
in ms.
For applications with high stiction (slipstick), adjusting this parame‐
ter improves the control quality.
This parameter can be set for special applications.
28
0.1 ... 10.0
In this parameter, you can read the deadbands of the controller in
the 'Up' and 'Down' directions. Display in percent. The values corre‐
spond either to the manually configured value of the '31.DEBA'
Deadband of controller (Page 160) parameter or to the value auto‐
matically adapted by the device if 'DEBA' was set to 'Auto'.
0.1 ... 100.0
The slow step zone is the zone of the closed-loop controller in which
control signals are issued in a pulsed manner. Display is in percent.
The impulse length is thus proportional to the control deviation. If
the control deviation is beyond the slow step zone, the valves are
controlled using permanent contact.
This parameter can be set for special applications.
10.0
Alarm, fault and system messages
11.2 Diagnostics
263