Mounting, wiring, connecting, system interfaces, configuration guidelines
12.2 Wiring, connecting
SIMOCODE pro
System Manual, 05/2019, A5E40507475002A/RS-AD/004
235
Example 2
● 3UF1868-3GA00 current transformer:
– Primary current: 205 A at nominal load
– Secondary current: 0.25 A
● SIMOCODE pro with 3UF7100-1AA00-0 current measuring module, current setting
0.3 to 3 A. This means:
– The secondary current of the current transformer is 0.25 A at rated load and is,
therefore,
not within the 0.3 to 3 A setting range of the current measuring module
used.
– The secondary current must be boosted by multiple looping of the secondary cables
through the feed-through openings of the current measuring module. Double-looping
results in 2 x 0.25 A = 0.5 A.
– The current setting I
s
to be parameterized in SIMOCODE pro is 0.5 A.
Figure 12-31 Example (2 of 2) for measuring current with an external 3UF18 current transformer
MOCODE pro V PB basic unit as from version *E03* is used, the current setting
does not have to be converted but is the same as th
e nominal primary current.
By additionally entering the transformation ratio of the current transformer (interposing
transforme
r), conversion will be performed automatically in the device.
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