Tsup' Setpoint Ramp Up / '11.Tsdo' Setpoint Ramp Down - Siemens 6DR50 Series Operating Instructions Manual

Figure 9-2
9.4.2.4

'10.TSUP' Setpoint ramp UP / '11.TSDO' Setpoint ramp DOWN

Possible settings:
Purpose:
Factory setting:
SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12
Example: Split range operation with two positioners
With "TSUP"
• Auto
• 0 ... 400
The setpoint ramp is effective in "Automatic" mode and limits the
speed of change of the effective setpoint. When switching over
from "Manual" mode to "Automatic" mode, the setpoint ramp is
used to adjust the effective setpoint to the setpoint of the position-
er.
This smooth switching from "Manual" mode to "Automatic" mode
prevents pressure excess in long pipelines.
The parameter value "TSUP = Auto" means that the slower of the
two travel times determined during initialization is used for the
setpoint ramp. Parameter value "TSDO" then has no effect.
0
Parameterizing/addressing
9.4 Description of parameters
With "TSDO"
• 0 ... 400
161