Installation and Operation
UPS-Manual
18
EN
(b) Check to see Chapter 6.1 to trouble
shoot the problem of the UPS; otherwise,
consult your local distributor for service.
(c) Press key pad for 5 seconds and
buzzer will sound twice.
(d) Turn off the Breaker of the Utility Input.
(e) The UPS lock problem is solved now.
4.4.7. Shut Off
1. Press key pad for about 5 seconds, the
Inverter output will be turned off, then the
output load is supplied by Bypass loop and
the LCD screen shows as Drawing B.
2. Turn off the input of the UPS.
3. The UPS is turned off completely.
4.4.8. Bypass Mode
The PMC12 can be switched to Bypass Mode
any time during online mode (see 4.4.5.6).
It can be switched to bypass by pressing the
button 7 “ON” and 11 “UP” together for approx.
3 seconds. A buzzer sound a the blinking of
LED 5 shows that the UPS is in Bypass Mode.
The Display will show the bypass sign as
shown in drawing Z.
The UPS can be switched back to Inverter
Mode by repeating this action.
Again this will be confirmed by a buzzer sound
and the display will get back to drawing E.
4.5. Status & Alarm Buzzer
The following table helps to define some of the
common UPS statuses with respect to their
buzzer beep descriptions.
Status Definitions
Buzzer Beep
Descriptions
UPS faulty, Inverter
shutdown. All functions
inhabited.
Long Continuous
Beep
UPS faulty, loads
continue to be supplied
via Inverter or Bypass.
Single successive
beep with ~ 2 sec
interval
battery mode
Single short
successive beep
with ~1 sec interval
battery low
Very quick and
short successive
beep
confirm/RS232 port
receiving
2 quick & short
beeps
service mode ok
1 quick & short
beep
UPS initial starts up with
self test
2 successive quick
& short beeps,
repeating per ~2
sec interval.