Recording Of Analog Measured Line Values - Siemens SIPLUS HCS Operating Instructions Manual

9.4

Recording of analog measured line values

Note
For recording analog measured line values, a PM4000 U/I must be available.
Line current
Three inputs are available for recording measured current values. lL1, lL2, and lL3 can be
connected. The measuring range (current converter output) is adjustable.
The value measured at the current converter output is displayed, not the value on the
primary side. The latter must be determined by the user him/herself (transformation ratio of
current converter).
Two measured values are determined for each current input:
● Measured value averaged over 16 half-waves
● Measured value averaged over one control period of a power output (100 half-waves)
The measured current values are not linked to the functionality of the heating control. Further
processing must be carried out by the user.
Application example:
● Recording of the control currents for detecting defective heating elements when
connecting several elements in parallel to one output
Supply voltage
Four inputs are available for the recording of measured voltage values. It is possible to
connect UL1, UL2, UL3 and N. Measurement can be performed in a star or delta circuit.
The voltage measurement values are linked with the functionality of the heating control:
Monitoring ofline voltage range (Page 84) andline voltage compensation (Page 78).
Note
During configuration, "delta" must be configured for the connection. Otherwise the heating
control does not function.
Line power
The same applies for the line power as for the line current: The measured value refers to the
output value of the current converter. The user him/herself must determine the measured
line value of the primary side (transformation ratio of current converter).
Two measured values are determined for each phase:
● Measured value averaged over 16 half-waves
● Measured value averaged over one control period of a power output (100 half-waves)
SIPLUS HCS4200
Operating Instructions, 11/2015, A5E35066204A/RS-AA/002
9.4 Recording of analog measured line values
Functions
81