1 standardisation of process value, Commissioning – Lenze 8240 HVAC Series User Manual
Page 52
Commissioning
5-12
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5.5.1
Standardisation of process value
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Code
Name
Possible settings
IMPORTANT
Lenze Selection
Info
C500* Display factor
application datum
2000 1
{1}
25000
application datum
numerator
C501* Display factor for
process variable
10
1
{1}
25000
process variable
denominator
Function
Adaption of the field-frequency related parameters C010, C011, C017, C019, C037, C038, C039,
C050,C051 and C181 to a process value to be controlled, e.g. pressure, temperature, flow rate,
humidity or speed. By this, an absolute or relative display or selection of a process value can be
implemented.
Adjustment
The display value CXXX is calculated from:
CXXX =
C011
200 ⋅
C500
C501
Example
Relative or absolute selection and display of a speed setpoint
P
soll
= 5 bar, fdmax =50Hz:
a) Relative standardisation in %
100, 0 (%) =
50
200 ⋅
4000
10
(e. g. C500=4000; C501=10)
b) Absolute standardisation in physical units
5, 00(bar) =
50
200 ⋅
200
10
(e. g. C500=200; C501=10)
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