Wiring Method; On And Off Operation Of The Unit; Battery Maintenance - Orion SCR2 User Manual And Instructions

(4) Check and tighten all bolts, then
insert the UPS cabinet into the
rails on the RACK with the rear
side of the cabinet slanting up,
then lift the front side of the
cabinet to a horizontal position as
shown in Fig.4 and push the
cabinet into position inside the
RACK.
(5) Finally fix the cabinet front panel
handles to the front brackets of
the RACK using 4 M5 bolts so
that the UPS unit does not fall
out of the RACK.

2.3 Wiring Method

(1) At least 10AWG (soft) or 22mm² (hard) wires shall be used for the input
and output wires.
(2) Wiring the input: In case of 3-phase 4-wire 208/120V power system (with
R, S, T, N, and G wires) taking any 2 phases as the power input, the
Neutral wire (N) must be connected too.
UPS
output

2.4 ON and OFF Operation of the Unit

(1) After verifying correct wiring to the Power Mains, press the "On/Mute"
button and the load indicator on the panel lights up. Check indicators one
by one. A few minutes later, the inverter indicator "UPS ON" will light up
Fig. 4
Input of
power
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and the "BYPASS" indicator will go out. At this point, the UPS unit has
entered into normal operation.
In case the bar-type indicator indicates a load exceeding 100%, the
buzzer will beep every half second, alerting the user that excessive load
has been connected to the system. You may disconnect loads of
secondary devices such as printers. If the "Power Mains" indicator lights
up, the AC power source is correctly connected. If both the "Power Mains"
and "Battery" indicators light up at the same time, it indicates that the
voltage or frequency of the AC source has exceeded its range.
(2) UPS I/P breaker off: Checks and confirms that the standby function of the
battery is normal.
The UPS unit will beep every 4 seconds. The Power Mains indicator goes
out.
(3) Press the "OFF" button (**Note**)
Pressing the "OFF" button once will switch the load devices over to the
(
bypass circuit for standby power supply. Pressing the "OFF" button a
second time within 4 seconds will disengage the output socket(s)
and the connected load device(s) from power. Please turn off all the
connected loads according to all necessary procedures before pressing
the "OFF" button twice.
(4) The UPS unit has "DC (battery) start up" and "alarm mute" functions.
When the Power Mains fails, the load indicator will function as a "Battery
Capacity Indicator" during standby. Direct start up in Battery Mode: When
there is no Power Mains input, press the "ON/Mute" button to start the
UPS unit for a Battery Mode start up. The first-time use of "DC (battery)
start up" is only available when the unit has been started with the Power
Mains.
Alarm Mute: Pressing the "ON/Mute" button will stop the alarm. Pressing
the button again will re-activate the alarm. Please note every button needs
to be pressed for more than 1 second for activation.

2.5 Battery Maintenance

1. When the UPS unit is not in use, the battery shall be re-charged every
three months for at least 12 hours. In warm areas, charge the battery
every two months for at least 12 hours.
2. Batteries tend to age when in operation. In general, batteries have a
lifespan of 3-5 years. An aged battery must be replaced, or the battery
may leak battery fluid and create a fire hazard.
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