CARLO GAVAZZI WM15, User Manual

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Essential information
WM15 - User manual | CARLO GAVAZZI Controls SpA
WIRING CHECK function
Introduction
The WIRING CHECK function allows to check and correct the connections.
For it to work properly, the following three conditions must be met:
1. the set system must be “3P+N”,
2. all voltages must be connected,
3. All currents must be greater than zero, with an offset ranging between a 45° lag and a 15° lead (power factor > 0.7 inductive or > 0.96
capacitive)
Display check
WM15 verifies the connections and analyses the measured dimensions. In case of wiring errors it suggests the changes through a graphical
interface.
During operation, if a wiring error is detected the alarm icon will light up.
If the three conditions fail to be met, the following indications shall be displayed in the VOLTAGE CHECK and CURRENT CHECK pages:
• V MISSING: at least one voltage is missing
• I MISSING: at least one current is missing
• PF OUT OF RANGE: the current-voltage offset is out of range.
Check from UCS software or UCS Mobile
By connecting to WM15 through the UCS software or UCS Mobile, you can verify the connections and perform the steps required to correct
the wiring error.
Virtual correction from UCS software or UCS Mobile
The virtual correction function allows to calculate the wiring error solution and to modify the association of the physical connections with the
measurement references.
Example
if the connections of terminals 5 and 6 are inverted (voltage 2 and voltage 3), by accepting the proposed solution, voltage 2 shall be the one
measured with reference to terminal 6, while voltage 3 shall be the one referring to terminal 5.
The unit shall display the
icon, signalling that the association was modified via software and referring to the info pages to check the
phase-terminal associations set by UCS.
Note: the function is not available in MID models