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PAK200609_01F   Jan 2021                      ©2019 ELMDENE INTERNATIONAL LTD  

 

Connections and Signalling outputs

 

Load / - 

Screw terminals Voltage output to load  

GEN PSU Fault  (normally 
closed contact) 

0.10A @ 60V d

c 16Ω solid state relay contact

s, volt free 

Open if Mains failed and battery voltage < 23V or fault PSU fault 
condition, (see below) 

EPS Fault  (normally closed 
contact) 

0.10A @ 60V 

dc 16Ω solid state relay contacts, volt free

 

Open if loss of mains  > 10 seconds 

Temperature sensor 

Thermistor input from supplied battery terminal thermistor. 

BATT + / - 

Connection to back up battery using supplied battery lead 

 

 

 
 

S

IGNALLING AND 

D

IAGNOSTICS

 

 

 

Fault Outputs 

EPS Fault 

GEN Fault 

Condition 

Possible Cause 

Action 

C

LOSED

 

C

LOSED

 

Normal 

operation 

Mains present 
Battery healthy 

None 

O

PEN

 

C

LOSED

 

Standby 

Mode 

Mains lost 
Battery driving load 

Investigate loss of mains 

C

LOSED

 

O

PEN

 

Fault 

Present 

Blown fuses 
Battery fault 
Internal fault 

Investigate fault source using 
diagnostic LED 
Rectify fault where possible 

O

PEN

 

O

PEN

 

PSU 

Shutdown 

Mains lost 
Standby battery exhausted 

Restore mains as soon as 
possible 

 
 

LED Indication 

YELLOW LED  

Fault LED 

GREEN LED 

Mains supply On 

DIAGNOSTICS 

Diagnostic LED 

 
 

Fault Diagnostic table 

 Front panel - User 

Yellow LED 

Fault 

Green LED 

Mains 

Condition 

Possible Cause 

Action 

O

FF

 

O

N

 

Normal 

operation 

Mains present 
Battery healthy 

None 

F

LASH 

C

ONTINUOUS

 

O

or

 

O

FF

 

Fault 

Blown fuses 
Battery fault 
Internal fault 

Contact service 
engineer 

1

 

P

ULSE

/

S

 

O

FF

 

Standby Mode 

Mains lost 
Battery driving load 

Investigate loss of 
mains 

 

 

Summary of Contents for STX2405-MOD

Page 1: ...ents 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 charger fault and loss...

Page 2: ...5 0A 5 0 A 5 0A 5 0 A Battery Capacity eg PowerSonic model Yuasa model Interlogix model 2 x 2 1Ah 12V PS12021 NP2 1 12 2 x 7Ah 12V PS12070 NP7 12 2 x 17Ah 12V PS12170 NP17 12 BS131N Battery Charging C...

Page 3: ...ault 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 CLOS...

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: ...s 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 75 mm2 nominal conductor area having a minimum operating voltage of 3...

Page 6: ...Figure 3 Terminal labels Standby Batteries 10 With mains disconnected connect the two 12V standby batteries in series using the single cable provided Connect the negative of one battery to the positiv...

Page 7: ...contact NOTE Batteries must be connected before mains power is applied to enable the batteries to be utilised When replacing batteries re connect new batteries and then cycle the mains power OPERATING...

Page 8: ...l regulations Package used batteries safely for onward transport to your supplier collection point or disposal facility Caution Risk of fire or explosion if bare battery wires are allowed to touch See...

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