12.2.4.20 Diagnostic value '23.IMPUP - Pulse length up' / '24.IMPDN - Pulse length down'
Display range: 6 ... 160
Purpose: The smallest impulse lengths that can be used to move the actuator
are determined during the initialization process. They are separate‐
ly determined for the 'Up' and 'Down' directions and displayed here.
Display in ms.
In the case of special applications you can additionally set the
smallest impulse lengths in these two parameters.
Factory setting: 6
12.2.4.21 Diagnostic value '25.PAUTP - Pulse interval'
Display range: 2 ... 320
Purpose: This value is not changed during an initialization process. Display in
ms.
For applications with high stiction (slipstick), adjusting this param‐
eter improves the control quality.
This parameter can be set for special applications.
Factory setting: 28
12.2.4.22 Diagnostic value '26.DBUP - Deadband up' / '27.DBDN - Deadband down'
Display range: 0.1 ... 10.0
Purpose: In this parameter, you can read the deadbands of the controller in
the 'Up' and 'Down' directions. Display in percent. The values cor‐
respond either to the manually configured value of the '31.DEBA'
Deadband of controller (Page 148) parameter or to the value auto‐
matically adapted by the device if 'DEBA' was set to 'Auto'.
12.2.4.23 Diagnostic value '28.SSUP - Slow step zone up' / '29.SSDN - Slow step zone down'
Display range: 0.1 ... 100.0
Purpose: 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.
Factory setting: 10.0
Diagnostics and troubleshooting
12.2 Diagnostics
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC 267
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