Significance Of Alarm Sounds; Time Endurance Of Batteries; Communication Interface Port - Orion SCR2 User Manual And Instructions

3.3 Significance of alarm sounds

Significance
Battery mode (Power Mains failure)
Battery voltage low
Output overload (Bypass)
Overheat (Bypass)
Inverter (INV) failure (Bypass)
Bus overvoltage (Bypass)
Battery test failure
INV-to-INV communication failure

4. Time Endurance of Batteries

Load proportion
(linear load)
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Remark: At 25°C environment temperature, in minutes. Discharge time will
shorten as the battery ages; it is recommended that the battery be
replaced every 3-5 years.
Alarm Sounds
One beep every 10s
Two short beeps every 5s
One short beep every 0.5s
One beep (1s or 2s) every 4s
One beep (1s or 2s) every 4s
One beep (1s or 2s) every 4s
One beep (2s) every 60s
One short beep every 0.5s
Internal
battery
75
38
25
18
14
11
9
7
6
5
12

5. Communication Interface Port

The RACK-installed UPS has a standard DB-9 female serial port. This port provides
several signals and their respective functions are given as follows:
Pin
1 Low battery power (transistor collector open, see the figure below).
2 UPS TxD (normal RS-232 transmission)
3 UPS RxD (normal RS-232 transmission)
Switched off by remote control (max. 5-12 VDC,10-24mA) during
4
the battery operation mode.
5 Common ground for pins 2, 3, and 4
Switched off by remote control (pin 5 shorted) during any operation
6
mode.
7 Low battery power (transistor collector open; see the figure below).
Abnormal Power Mains input (transistor emitter open; see the
8
figure below).
Abnormal Power Mains input (transistor collector open; see the
9
figure below).
Pin Assignment
Note: Maximum allowable voltage and current fed into pins 1, 7, 7 and 9 are
60VDC/10.0mA. If these values are exceeded, internal optical couples of
the UPS may get burnt.
Pin 4 – Explanations of remote control switch off of battery operation
1. This pin is only functional when the UPS is in battery mode. Pin 4 will ignore
any signal when the UPS is in the normal mode where the Power Mains is in
normal supply.
2. Pin 4 requires a 5-12 VDC signal to switch off the unit. A 5-12 VDC signal
sustained for more than 1.5s is required for switch off of the unit; any signal
shorter than 1.5s will be ignored. When Pin 4 receives a switch off signal
Function
Collector to Emitter
Open
collector
Open
emitter
13