GE M-PACT - Operating M-PRO 20;30;40

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Operating M-PRO 20/30/40
When M-PRO is first energised:
The green ‘Healthy’ LED will light indicating that (a) power is present, (b) The unit is functioning normally. This will remain lit at all times
when M-PRO is energised unless a fault is present. Refer to M-PRO menu structure when the instructions below are carried out.
If the Ammeters option has been specified, the LCD screen will display the RMS
phase currents. For example:
Refer to M-PRO menu structure. Phase current measurement in Amps – level 2.
Red
680
Ylw
700
Blue
806A
If Ammeters has not been specified, M-PRO will be in the Faults mode and the
LCD display will read:
Refer to M-PRO menu structure. Existing faults indication – level 3.
Existing faults
No faults
The following will explain how to set the M-PRO to a short time delay of 0.8 sec.
For the other settings, the procedure is EXACTLY the same. Refer to the menu structure above.
- First step, go to the protection menu
If the M-PRO was displaying the ammeters page, you will have to: If the M-PRO was displaying the Fault page, you will have to:
Press and the M-PRO will display Press and the M-PRO will display
Then then
then
then
- Then go to the Fixed S/C Time sub-menu
Press and the M-PRO will display
then
Then 7 times
Escape
M – P R O 20
A
mmeters
Up
M – P R O 20
Protection
Escape Faults
Existing faults
Escape M – P R O 20
Faults
Up M – P R O 20
A
mmeters
Up
M – P R O 20
Protection
Select M – P R O 20
Curve Settings
Select
I_SET
= 50%I_N = 400A
Down
Curve Type
=EI (Gen. Purpose)
O/L Curve
= C03, 8.00s @ 2 Iset
Cooling time
=Instant
Inverse S/C Crnt
= 4xI_SET 1600A
A
ssuming the M-PRO was originally
configured as 800A with a 50% Iset