EATON ELECTRICAL
50
Predictive Diagnostics
Press
Enter
.
on15dAYS
will appear and the number will flashing. Use
keys to select a numeral
and
to set the required number.
Press
Enter
.
nrEAd-02
will appear and the number will flashing. Use
keys to select a numeral
and
to set the required number.
When done, press
Enter
.
RS-485 Interface Transmission Rate:
(9600 BPS is a default for most of applications. You also may
use 38400 BPS with good transmission lines.
Analog Interface (4-20 mA) Configuration:
One of two parameters PDI or Q
02
can be brought to 4-20mAmps interface. The interface represents
parameter value in terms of % of Red threshold. 14mAmps are equal to 100% of Red alarm. Enabling a
parameter for the interface enables it to alarm automatically.
Scroll setup parameters until
Out tYPE
appears.
Press
Enter
.
Out-PdI(Q02)
will appear. Use
keys to set the required parameter to output.
PdI
– Partial discharge intensity in % of “Red” threshold, or
Q02
– Pulse magnitude in % of “Red” threshold.
When done, press
Enter
.
Turn Monitoring OFF:
It may be necessary to stop the monitoring mode for an undefined length of time (prolonged outage and
so on).
(Remember: It is the responsibility of the operator to resume monitoring!)
Scroll setup parameters until
STOP
appears.
Press
Enter
.
STOP-no
will appear. Use
keys to set the control to
STOP-YES.
When done, press
Enter
.
This stops monitoring for indefinite time. To resume monitoring set control in
STOP-no
position.
Setting Internal Phase Shift:
By default, InsulGard uses the internal phase reference from its 115/230 VAC power source. (External
phase reference is also available for specific applications such as, variable frequency drives (refer to the
correspondent part of User Manual). Obtaining a correct relative phase shift between the internal phase
reference and the voltage on monitored object is very important for correct interpretation of phase-
resolved PD distribution (PRPDD). This value needs to be established by an operator during setup time.
It is a value of the phase shift in degrees between the line A-to-ground voltage of monitored object and
the Line-to-Neutral (Ground) voltage of the power supply. The phase shift is counted from the power
supply positive zero crossing.
Required Phase Shift can be entered into device manually, or determined automatically with the precision
of 5 degrees. For automatic detection a phase reference signal from the A-phase should be temporarily
connected to the the device. Connection scheme of a reference signal depends upon device configuration
and application. Please refer to the correspondent section for the right connection schematic for your
application.
Remember:
In all cases, the reference signal should not exceed 5V AC!
Scroll setup parameters until
PhShiFt
appears.
Press
Enter or Set
.
If
Enter
is pressed
PhSh-000
will appear. Use
keys to set the relative phase shift from 0 to
360 (deg)
.
Press
Enter
to Save new value, or
Esc
to exit without saving.
If
Set
is pressed
PhSh-XXX
will appear. The device will automatically detect required phase shift and
display it.
Press
Enter
to Save New value, or
Esc
to exit without saving.
