User Instructions
www.pulsar.pl            RC24V         RACK POWER 
6 
2.  Indication of operation of the battery controller. 
3.1.  Optical indication. 
The controller is equipped with LED light at the front panel: 
RED LED: 
  ON/blinking – Indicates a failure (Table 6) 
  OFF – No errors/normal operation 
3.2.  Technical output. 
The controller is fitted with the ALARM technical output of collective failure. The collective failure can be 
triggered by the events presented in Table 6. 
Fig. 6. The electrical diagram of the ALARM output of collective failure. 
CAUTION! In Fig. 6 the set of contacts shows a potential-free status of the relay which corresponds 
to a failure. 
3.3.  Acoustic indication. 
The failure status is also signaled acoustically by means of a piezoelectric indicator (in accordance with 
Table 6). Acoustic indication can be disabled with an ON/OFF switch   . 
 Switch in the upper position, the indication is ON 
 Switch in the lower position, acoustic indication is OFF 
Table 6. Table of errors 
State, failure 
Optical 
indication 
Acoustic 
indication  
Technical 
output 
Causes, comments 
The start of the test 
Absence 
2 short beeps  
INACTIVE 
- Start of the battery test 
High resistance of the 
BAT circuit 
Blinks 
1 beep every 10 
seconds 
ACTIVE 
- Batteries worn out 
- Loose connectors 
Undercharged battery 
Blinks 
1 beep every 10 
seconds 
ACTIVE 
- Undercharged battery 
No battery 
Blinks 
1 beep every 10 
seconds 
ACTIVE 
- Blown F
BAT 
fuse 
- No battery 
Low battery voltage (DC 
operation) 
Lit 
2 short beeps 
every 10 seconds 
ACTIVE 
- The batteries voltage has 
dropped below 23V during battery 
(assisted operation) 
Low battery voltage - 
disconnection (DC 
operation) 
Absence 
2 beeps every 10 
seconds (without 
repeat) 
ACTIVE 
- The batteries voltage has 
dropped below 21V during battery 
(assisted operation) 








