MPS Doc: M359_USER_MANUAL REV G January 17, 2010 Page 15 of 30
5.4. Remote Control (Using the Remote Switches).
In order to control the M359 by the remote switches (via the connector J4 on the rear panel),
the three front panel switches (2, 7 and 8) should be in the upper position. The
recommended connection of the remote switches is described in Para. 7.4 and Figure 10.
5.4.1.
Remote PWR ON/OFF Switch.
When in the Off position (down) this switch turns off the M359 (regardless of anything
else). When On, it enables UPS and By-Pass operation (the actual Mode will depend
on the setting of the other switches and controls).
5.4.2.
Remote UPS/BY-PASS Selector.
When this Selector is in the UPS position the M359 will operate as a UPS (see
Paragraph 5.2.1). When in the By-Pass position, the M359 will be in the By-Pass Mode
(see Paragraph 5.2.3).
If both the remote switches and the front panel switches are used, the following priority
shall apply:
1)
The M359 will be energized only if the front panel PWR ON/OFF switch (2) and the
remote ON/OFF switch are both On. Turning Off either one will disconnect the
input and output and will force the UPS to the Off State.
2)
If the remote UPS/BY-PASS Selector is in the BY-PASS position, the M359 will be
forced into the By-Pass Mode, regardless of the position of the front panel’s Input
(7) and Output (8) switches (providing that both the remote and front panel PWR
ON/OFF switches are On).
3)
If the front panel INPUT UPS/BY-PASS switch (7) and the OUTPUT UPS/BY-
PASS switch (8) are both in the BY-PASS position, the M359 will be in the By-Pass
Mode regardless of the position of the remote UPS/BY-PASS Selector (providing
that both PWR ON/OFF switches are On).
5.5. Visual Indicators.
5.5.1.
INPUT FAIL/OK LED’s (17 and 20).
When the M359 is On and in the UPS mode, these LED’s indicate the status of the AC
Input into the UPS. If the AC Input is normal, the OK green LED (20) will be on. If AC
Input is not provided (or too low for normal operation), the INPUT FAIL red LED (17) will
be on and the INPUT OK green LED will be off. When in the By-Pass mode, all LED’s
are off.
5.5.2.
OUTPUT FAIL / OK / STBY LED’s (18, 19 and 21).
When the M359 is in the UPS mode, The OUTPUT LED’s indicate the status of the AC
Output. When the AC Output is normal, the OUTPUT OK green LED (21) will be on.
If the UPS is in the Stand-by Mode (AC output is not available in this Mode), the
OUTPUT STBY yellow LED (18) will be on and the OUTPUT OK green LED (21) - off.
