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PAK200607_01D    Jan 2021                    ©2019 ELMDENE INTERNATIONAL LTD  

 

I

NSTALLATION 

 

 

 

This  unit  is  only  suitable  for  installation  as  permanently  connected  equipment.  The  PSU  is  NOT  SUITABLE  for 
external installation.  
 
This unit must be fed from a mains power source having a separate (approved) disconnect device and fitted with a 
fuse  or  other  over-current  protection  device  rated  at  5A  maximum.  Ensure  that  the  disconnect  device  used  has 
appropriate earth fault protection to the applicable standard. 

 

Where the PSU is used to provide power to a fire alarm circuit, the mains isolation and disconnect device should be 

provided solely for this purpose and be suitably marked “FIRE ALARM –

 

DO NOT TURN OFF”

. All cabling should meet 

national and local fire system installation regulations, e.g. FP200 type cable for high integrity installations. 

 

Where  the  PSU  is  used  for  other  applications,  it  should  be  installed  according  to  all  relevant  safety  regulations 
applicable to that application. 

 

Where the GEN PSU Fault and EPS Fault outputs are used, they should only be connected to circuits having voltages 
less than 60V dc. 
 

Cable Sizing 

1)

 

Mains input cable must be to the applicable standard with a 5A or greater current capacity, i.e. 0.75mm

2

 

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 current to the devices connected to the 
PSU. 

3)

 

All cabling should be securely fastened in position. 

 
Mounting the Module

  

4)

 

Fix the module into chosen enclosure using 3 x fixing points as per Fig 1 (All fixings must be used). Ensure 
sufficient  space  for  heat  dissipation  and  adequate  ventilation  to  avoid  overheating  of  the  unit  or 
associated batteries. 
 

Figure 1 

 Fixing Points 

 

 

 
 
 
 
 
 
 
 

 

 
 

C

OMMISSIONING

 

 

 

Mains Power Up 

1)

 

With  no  external  connections  made  to  the  PSU,  connect  the  mains  input  wires  to  the  terminal  block, 

ensuring  that  the  mains  isolator  (disconnect  device)  is  open

.  Fasten  wiring  in  place  with  cable  tie  to 

saddle. 

Note: Equipment must be earthed.

 

2)

 

Apply mains input. Confirm that all LED indicators flash on briefly proving integrity of indicating circuits. 
Ensure  that  the  green  Mains  LED  then  stays  illuminated  and  that  the  yellow  Fault  LED  flashes  after 
approximately 3s (indicating a disconnected battery). 

3)

 

Disconnect the mains power. 

 

Load Output and Remote Signalling 

4)

 

Connect the EPS and GEN PSU Fault outputs to the appropriate inputs of control equipment if remote fault 
monitoring is required. 

5)

 

Connect the load (output) wiring as shown in Figure 2.  

Module Dimensions 

150 x 207 x 52 (mm) 

75mm 

12mm 

128mm 

98mm 

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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