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PAK200607_01D    Jan 2021                    ©2019 ELMDENE INTERNATIONAL LTD  

 

 
Figure 2 - Connections

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6)

 

Re-apply  mains.  Verify  that  the  green  Mains  LED  illuminates  and  the  yellow  Fault  LED  flashes  after 
approximately 3s (disconnected battery). 

7)

 

If  connected,  verify  that  the  EPS  Fault  monitor  shows  a 

closed

  contact  and  the  GEN  PSU  Fault  monitor 

shows an 

open

 contact. 

8)

 

Perform a full functional test of system including full alarm condition. 

9)

 

Disconnect the mains. 

10)

 

For 17Ah batteries fit the link to the Battery select pins as indicated, for 7Ah or 2.1Ah batteries remove 
link, as shown in Figure 2. 

 
Figure 3 

 Terminal labels

 

 
 

 
 
 
 
 
 

 
Standby Battery 
 

11)

 

With mains 

disconnected, 

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

Connect the 

negative

 of one battery to the 

positive

 of the other. 

DO NOT CONNECT

 the other two battery 

terminals to each other. 

12)

 

Connect  the  free  Positive  and  Negative  terminals  of  the  batteries  to  the  PCB terminals  Batt+  and  Batt  - 
using the cables provided. See Figure 2 and 3. 

13)

 

Connect the battery temperature sensor (two white wires) to the PCB terminals Temp Sense. See Figure 3. 
Wires can be connected either way around. 

14)

 

Re-apply mains and, after the LED indicators initial start-up flash, verify that the yellow Fault LED does not 
flash (battery connection detected). Verify that the remote GEN PSU Fault monitor shows a 

closed

 contact. 

15)

 

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

16)

 

If connected, verify that the EPS Fault monitor shows an 

open

 contact and the PSU Fault monitor shows a 

closed

 contact. 

17)

 

Perform a full functional test of system including full alarm condition. Verify that the standby batteries can 
support the system load. Note: ensure batteries have sufficient charge.

 

 

   +    -  | +    -  |Temp| GEN    EPS  
   Load |  Batt |sense|     Fault       

BATT FUSE 

    1.6 Amp 

LOAD FUSE 

    1.6 Amp 

          

+  

 

+  -

 

 To Load 

 

L   E   N 

 Mains 

 

Temperature 
Sensor connect 

Diagnostic LED 

Fault LED 

Mains ON 

Battery Select 

Summary of Contents for STX2401-MOD

Page 1: ...arge protection prevents premature battery failure when operating from standby for extended periods Two sets of volt free solid state relay fault output signal i loss of mains and ii battery fault cha...

Page 2: ...charging Imax A 1 5A 1 2A 1 5A 1 2A Battery Capacity eg PowerSonic model Yuasa model 2 x 1 2Ah 12V PS12021 NP1 2 12 2 x 7Ah 12V PS12070 NP7 12 Battery Charging Constant current bulk charging to 80 cap...

Page 3: ...S Fault GEN Fault 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 C...

Page 4: ...ctive Battery charging normally but 90 of full charge None 2 PULSES ON No Battery Battery disconnected Battery fuse blown Battery heavily discharged Check battery connections Check battery fuse Check...

Page 5: ...ard with a 5A or greater current capacity i e 0 75mm2 nominal conductor area having a minimum operating voltage of 300 500V ac 2 The low voltage output cable must be sized to carry the rated load curr...

Page 6: ...Negative terminals of the batteries to the PCB terminals Batt and Batt using the cables provided See Figure 2 and 3 13 Connect the battery temperature sensor two white wires to the PCB terminals Temp...

Page 7: ...ENANCE 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 PSU other than periodic testing and replacemen...

Page 8: ...ed via an appropriate approved WEEE disposal route in accordance with all national and local regulations Before disposal of the product any batteries must be removed and disposed separately via an app...

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