Projoy Electric PEFS-PL Series Installation Manual page 8

Installation Guide
is 0V
PV Inverter input 0V
String voltage too
low
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.
(LED OFF)
power supply
PEFS-ESW
failure
PEFS-ESW switch activated
No PEFS-ESW switch output
Broken cable
PV array not connected
Incorrect PEFS-PL polarity
connection
No PEFS-PL output
No DC isolator (if fitted)
input
DC Isolator (if fitted) OFF
Incorrect PEFS-PL polarity
connection
Check mains ON
Check mains fuse
Check mains voltage between L & N marked
terminals
Check 24VDC between + & - marked terminals
Turn red actuator anti-clockwise to release
button
Check 24VDC between switch out terminal &
PSU – marked terminal
Check 24VDC between terminals of remote AMP
Superseal connector (pin 1 +24VDC\pin 2 0VDC)
Check all PV to PEFS-PL input connections
Check PV array Positive (+) goes to PEFS-PL
Positive (+)and PV array Negative (-) goes to
PEFS-PL Negative (-)
Replace PEFS-PL
Check PEFS-PL output connections
Check DC inputs to isolator
Turn DC Isolator ON
Check all PV array Positive (+) go to PEFS-PL
Positive (+)and PV array Negative (-) go to
PEFS-PL Negative (-)