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Installation Guide                                              

is 0V 

(LED OFF) 

Check mains ON 

Check mains fuse 

PEFS-ESW

 

power supply 

failure 

Check mains voltage between L & N marked 

terminals 

Check 24VDC b & - marked terminals 

PEFS-ESW

 

switch activated 

Turn red actuator anti-clockwise to release 

button 

No 

PEFS-ESW

 switch output 

Check 24VDC between switch out terminal & 

PSU – marked terminal 

Broken cable   

Check 24VDC between terminals of remote AMP 

Superseal connector (pin 1 +24VDC\pin 2 0VDC) 

PV array not connected 

Check all PV to PEFS-PL input connections 

Incorrect  PEFS-PL  polarity 

connection 

Check PV array Positive (+) goes to PEFS-PL 

Positive (+)and PV array Negative (-) goes to 

PEFS-PL Negative (-) 

No PEFS-PL output 

Replace PEFS-PL 

PV Inverter input 0V 

No DC isolator (if fitted) 

input   

Check PEFS-PL output connections 

Check DC inputs to isolator 

DC Isolator (if fitted) OFF   

Turn DC Isolator ON 

String voltage too 

low 

Incorrect  PEFS-PL  polarity 

connection 

Check all PV array Positive (+) go to PEFS-PL 

Positive (+)and PV array Negative (-) go to 

PEFS-PL Negative (-) 

 

In the occurrence of a fire, PROJOY recommend that all elements of the PEFS Rapid Shutdown system be 

assessed for operational suitability by a competent person prior to re-energising.   

 
 
 
 
 
 
 
 

Summary of Contents for PEFS-PL Series

Page 1: ......

Page 2: ...nnections are unsafe and may cause operational problems For the mechanical compatibility of the module converter and PEFS use the same connectors from the same manufacturer on both the PEFS and modules or obtain verification that the connectors to be used are compatible Do not drill through the PEFS PL product as this will damage the PEFS PL component and make it impossible for PEFS PL to work INT...

Page 3: ...it should be mounted within the array boundary of the two panels where the two panels are no greater than 1 foot 30cm apart from each other The installation locations and modes of PFS PL and PEFS ESW are shown below By placing the PEFS PL in position against the underside of the PV panel or the surface where the temperature needs to be sensed Once mounted ensure that the PEFS PL is secure Mounting...

Page 4: ...t off and the emergency switch fails PFS PL will be turned off and the pv module output will be disconnected The Emergency Rapid Shutdown Switch Unit PEFS ESW can be conveniently located anywhere for emergency access and is supplied with an internal 24VDC power supply to interface with the PEFS PL units Remove the PEFS ESW cover taking care not to damage the switch or power supply contained within...

Page 5: ...e 24VDC pin 2 negative 0VDC Do not remove the wire connection between the PEFS ESW power supply positive pole and the switch Connect the AMP socket female of PFS PL to the AMP plug male of PEFS ESW MULTIPLE INSTALLATIONS One PEFS PL will control two solar panels and by series connection of the PEFS multiple solar panel pairs can be connected to form a greater capacity system The diagram below illu...

Page 6: ...sabling the PV module s output Should the detected temperature then drop back to below 85 C the PEFS PL will re engage the PV module s output 2 Manual shutdown Upon the user operating the red push button switch located in the Emergency Switch Enclosure the PEFS PL performs a Rapid Shutdown disabling the PV array output 3 AC Supply Cut Off Shutdown Should there be a necessity by the emergency servi...

Page 7: ...l Cable Length 1200 mm Panel Cable Length 120 mm String Cable Length 1200 mm Standard UL 1741 NEC 2017 690 12 Type PEFS ESW Input Voltage 100 240V AC Rated input current 200mA Vi 115VAC 135mA Vi 230VAC Rated Output Voltage 24V DC Controlled fast shutdown number 20 With Lock Optional Dimensions 125 125 75 mm Ambient Operating Temperature 30 55 Communication GPRS Optional TROUBLESHOOTING Problem Pos...

Page 8: ...S PL input connections Incorrect PEFS PL polarity connection Check PV array Positive goes to PEFS PL Positive and PV array Negative goes to PEFS PL Negative No PEFS PL output Replace PEFS PL PV Inverter input 0V No DC isolator if fitted input Check PEFS PL output connections Check DC inputs to isolator DC Isolator if fitted OFF Turn DC Isolator ON String voltage too low Incorrect PEFS PL polarity ...

Page 9: ...Installation Guide ...

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