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PAK200583_02C Jan 2021                        ©2019 ELMDENE INTERNATIONAL LTD  

 
Standby Battery 

9)

 

Mount the appropriate batteries as shown in Figure 2. Where a dual box solution is used all cabling 
between the two boxes should be routed to use separate case entry/exit holes from other cabling and use 
suitable bushes to protect the cables

.

  

10)

 

With mains 

disconnected, 

connect the two 12 V standby batteries in series using the single cable provided. 

Connect the 

negative

 of one battery to the 

positive

 of the other. See Figure 3. 

CAUTION 

 DO NOT CONNECT the two remaining (free) battery terminals to each other!

 

11)

 

Connect the PCB terminals Batt+ and Batt

 

to the free Positive and Negative terminals of the batteries 

using the cables provided. See Figure 2 and 3. 

With the cable pair ALREADY screwed into the battery 

terminals the FINAL connection MUST be to the battery itself. 

 

12)

 

CAUTION 

 significant energy can be released from an SLA battery. When connecting the last battery 

lead, take extreme care to attach the cable ONLY to the correct terminal. Avoid shorting it to any other 
terminal or conducting surface.

 

13)

 

Connect the battery temperature sensor (two white wires) to the PCB terminals Temp Sense. See Figure 4. 
Wires can be connected either way around. 

14)

 

Verify that the yellow Fault LED does not flash (battery connection detected). Verify that the remote PSU 
Fault monitor shows a 

closed

 contact. 

15)

 

Disconnect the mains power. Verify that the green Mains LED extinguishes and the Yellow Fault LED starts 
to pulse (indicating that the PSE is running from its standby batteries). 

16)

 

If connected, verify that the EPS Fault monitor shows an 

open

 contact and the GEN PSU Fault monitor 

shows a 

closed

 contact. 

17)

 

Verify that the standby batteries are now driving (supporting) the system load. Perform a full functional 
test of system including full alarm condition Note: ensure batteries have sufficient charge to support the 
system under full load. 

Final 

18)

 

Reconnect the mains. Verify that the green Mains LED illuminates and the yellow Fault LED extinguishes. 

19)

 

If connected, verify that the EPS Fault monitor shows a 

closed

 contact and the GEN PSU Fault monitor 

shows a 

closed

 contact. 

20)

 

Disconnect one of the battery leads, ensuring that no exposed section of conductor or connector is 
allowed to contact exposed metal-work, other PSE terminals, or other battery terminals. 

21)

 

Verify that, in less than 1 minute, the yellow Fault LED starts to flash, and that the orange Diagnostic LED 
flashes in a 2 pulse repeating pattern, (indicating that battery disconnection was detected). 

22)

 

Reconnect the battery lead and, after approximately 3 s, verify that that the Fault LED does not flash. 
(Audible click can be heard as the battery relay closes, then a second click while the charger is tested.)  

23)

 

Note: If it is necessary to obtain confirmation of charging current; between steps 18 and 20, an ammeter 
can be placed in series with the battery leads. Continue to observe caution with all exposed conductors 
when inserting or removing the meter and when restoring normal battery wiring.

 

 

O

PERATING 

I

NSTRUCTIONS

 

 

 
In the event of loss of mains, a battery fault or a GEN PSU fault, the corresponding Fault signal contacts will 
open.  
If the output of the PSE fails, the cause of the failure should be investigated e.g. short circuit load, 
connection of a deeply discharged battery. The fault should be rectified before restoring power to the PSE. If 
any of the fuses require replacing, ensure the correct fuse rating and type is used. 
 

M

AINTENANCE

   

 

This unit is intended for use by Service Personnel only.  There are NO USER SERVICEABLE parts inside. 
There is no regular maintenance required of the PSE other than periodic testing, and replacement of the 
standby battery.  

Reference should be made to the battery manufacturer's documentation to determine 

typical/expected battery life with a view to periodic replacement of the battery.  

 

Summary of Contents for STX2401-C

Page 1: ...elay fault output signal i loss of mains and ii battery fault charger fault and loss of output In addition there is an optional plug in serial interface that can provide diagnostic and fault reporting...

Page 2: ...ttery Capacity e g PowerSonic model Yuasa model 2 x 1 2 Ah 12 V PS12021 NP1 2 12 2 x 7 Ah 12 V PS12070 NP7 12 Battery Charging Constant current bulk charging to 80 capacity within 24 hours Float charg...

Page 3: ...ault Condition Possible Cause Action CLOSED CLOSED Normal operation Mains present Battery healthy None OPEN CLOSED Standby Mode Mains lost Battery driving load Investigate loss of mains CLOSED OPEN Fa...

Page 4: ...systems If the PSE is used as a power supply for Control and Indicating Equipment CIE the PSE shall be installed no further than 10cm from the CIE and close coupled by conduit This unit must be fed f...

Page 5: ...wall fixings are appropriate to support this weight 7 The product should be mounted no further than 10 cm from the control and indicating equipment close coupled by conduit if it is being used to pow...

Page 6: ...ault LED flashes after approximately 3 s indicating a disconnected battery 3 Disconnect the mains power Load Output and Remote Signalling 4 Connect the EPS and PSU Fault outputs to the appropriate inp...

Page 7: ...ull alarm condition Note ensure batteries have sufficient charge to support the system under full load Final 18 Reconnect the mains Verify that the green Mains LED illuminates and the yellow Fault LED...

Page 8: ...of the product any batteries must be removed and disposed separately via an appropriate approved battery disposal route in accordance with all national and local regulations Package used batteries saf...

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