Power Electronics V5 Series Getting Started Manual page 26

Fault F7
Description Heat sink too hot (>85ºC).
Sense level (> 85°C).
Possible Cause Insufficient cooling.
Fan failure.
Ambient temperature too high (>45ºC).
The actual current is higher than the nominal.
Action Check fans and cooling paths. Check the ambient temperature during normal operation
doesn't exceed 45ºC or 50ºC with re-rating. Check that correct re-rating has been applied
if higher than 45ºC. Check that actual motor current is the same or smaller than the V5
nominal current.
Fault F8 MOTOR PTC .
Description External trip (Motor PTC) has operated (Terminals T16-T17).
Sense level 150ohms<PTC <2.7kohms >>ok.
other >> fault.
Possible Cause Motor over temperature. Fault in sensor wiring (open-circuit, short-circuit)
Action Check motor is not overloaded. Check PTC wiring, check PTC. If there is no PTC
connected, select G3.5 MOTOR PTC=NO
Fault F9 SHEARPIN
Description Shearpin current trip.
Sense level G3.8 Shearpin Current.
Possible Cause The motor has drawn a higher current than Shearpin protection setting at G3.8.
Rotor locked due to a mechanical obstruction.
Action Check if it's possible that motor reaches the Shearpin current under normal operation, and
if so, increase the value of that protection. Check motor, cables and load and the reason of
the over current.
Fault F10 OVER VOLT
Description High supply voltage for too long period.
Sense level The combination of parameters G3.12 OVERVOLTAGE and G3.13 OVERVOLTAGE
DELAY.
Possible Cause Fluctuating power supply, wrong settings; the input voltage of each phase in parameter
G3.12; and the time set in G3.13.
Action Check supply voltage and set G3.12 and G3.13. Check supply.
Fault F11 UNDER VOLT
Description Low voltage supply for too long period.
Sense level The combination of parameters G3.10 UNDERVOLTAGE and G3.11 UNDERVOLTAGE
DELAY.
Possible Cause Impedance of input power supply is too high. Excess current draw, weak supply.
Check the input voltage of each phase is higher than G3.10 parameter and during the time
set in G3.11 parameter.
Action Check supply, check values at G3.10 and G3.11. Check supply.
Fault F12 EXCESIV STR
Description Maximum number of starts exceeded.
Sense level Maximum number of starts set at G3.14 START LIMIT during time period set at G3.15
SRT/INT.
Possible Cause Excessive number of starts/stop during the normal operation. Rotor locked or motor
overloaded during the start so the ramp up couldn't be completed.
Action Check motor and load conditions. Check values of parameters G3.14, G3.15 are coherent
with the application.
Fault F13 MEMORY FLT
Description Fault reading SRAM.
Possible Cause Writing error, faulty memory.
Action Attempt to reinitialise the V5 ( 1.5 INITIALISE ) .
If the problem persists, call Power Electronics or an authorised distributor.
POWER ELECTRONICS V5 Operation Instructions
STARTER OT
V5IM01BI
25