Siemens SIMOCODE pro C System Manual page 137

8.5 Current / voltage measuring modules (UM, UM+) for the SIMOCODE pro V High Performance device series
Mounting:
The current / voltage measuring modules UM / UM+ with a current setting of up to 115 A are
suitable for standard rail mounting or can be fixed directly to the mounting plate using
additional push-in lugs. These can be connected to the basic unit mechanically and installed
as a unit (behind one another). For current / voltage measuring modules UM+ with a current
setting of up to 115 A it is possible to mount the basic unit on the current / voltage measuring
module.
Current / voltage measuring modules with a setting current up to 200 A can also be mounted
on the standard mounting rail or, optionally, they can be fixed directly to the mounting plate
with the screw attachments that are integrated in the enclosure.
The current / voltage measuring module with a current setting of up to 630 A can only be
mounted using the integrated screw attachments. In this case, basic units can only be
installed separately next to the current / voltage measuring modules.
Application notes when using a 2nd generation current / voltage measuring module
Note
MLFB
The MLFBs of 2nd generation current / voltage measuring modules end
in 010 (e.g. 3UF71101AA010)
Measured variables and measurement accuracies
The following new measured quantities are available:
● Frequency f of the supply voltage
● Average phase current - mean value (I1/I2/I3) I_avg:
Thanks to the internally determined ground-fault current, it is possible to monitor it by means
of a warning and tripping threshold (up to max. 6x I
"Internal ground fault" function block. See Chapter "Ground fault monitoring" in the manual
Parameterizing SIMOCODE pro
(https://support.industry.siemens.com/cs/ww/en/view/109743958).
The accuracy of measured values has been improved. The following measuring accuracies
are possible in the rated ranges:
● Current I: 1.5%
● Voltage U: 1.5%
● Power factor cos phi: 1.5%
● Active power P: 5%
● Active energy E: 5%
● Frequency f of the supply voltage: 1.5%
SIMOCODE pro
System Manual, 05/2019, A5E40507475002A/RS-AD/004
Description of system components
1)
). The relevant settings are made via the
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