Mx Frame Manual Bypass Switch - Eaton Pulsar Serie Manual De Instalación Y De Usuario

4.7

MX Frame Manual Bypass Switch

This operation must be carried out by a qualified service technician.
Before any action on the manual bypass switch (1), always follow the sequence of operations below.
In Normal operations, the manual bypass switch is in the "Normal" position.
Note: Front panel display: LED (20) is on. LEDs (30), (32), and (34) are green.
Rear View of MX
Front Display
Front Display
1. Set the manual bypass switch (1) to Test position
2. Press and hold the "I" (ON) button (29) for 3 seconds. The buzzer beeps. Display will show "self diagnosis" and ask
for testing entire UPS or an individual module. If you select entire UPS, the UPS internal test will be launched. If you
select an individual module, you will need to select the desired module and the internal test will be launched. After
an Internal test, if no failure has been detected, LED (22) is ON, and LEDs (30) and (32) are green.
To return to normal operation:
Press and hold the (0) OFF button (28) for 3 seconds. Set the manual bypass switch (1) to Normal position, then
follow step 8 above.
86-87021-00 A01 - Page 32
MX
1
3
BYPASS position:
1. Press and hold the (0) (OFF) button (28) for
(See page 1-2
3 seconds. The buzzer beeps. The load is
for item numbering.)
powered via the Normal AC Source (bypass
mode). LED (22) is on. LEDs (33) and (34) are
green. See Page 3-1 for description of the front
display LEDs.
2. Unlock the Manual Bypass Switch (1) and set
to the Bypass position. The load is supplied
directly with Normal AC source via the manual
bypass switch.
3. Pull red padlock in the center of the manual
bypass switch (1) to lock into Bypass position.
4. Turn off the input switch (3) and all LEDs on
the front display are off.
5. The MX Frame is now ready for service.
The Manual Bypass Switch enables service
be performed on components within the MX
Frame without affecting the connected load or
the HotSwap function.
Return to NORMAL position:
6. Set the manual bypass switch (1) to
position.
7. Turn ON the input switch (3). The load is
powered via the Normal AC source, but not
protected by the UPS. It is also possible to fully
test the MX modules before the manual bypass
switch (1) is set on Normal position.
8. Press and hold the "I" (ON) button (29) for
3 seconds. The buzzer beeps. MX Frame
performs an internal test sequence. Display
will show "self diagnosis in progress". LED
(20) is ON. LEDs (30), (32), and (34) are green.
No failure has been detected. The MX Frame
is now in normal operating mode (ONLINE
MODE) and the load is protected. If LED (21)
or (22) is ON, an alarm has occurred (see the
"troubleshooting" section).
TEST position:
to
Normal