Smart-UPS 750 XL AVR Trim Fail

[Anonymous user]

Hi,
I have AVR Trim function always Active, but line voltage is always OK.

Powerchute values:
Line Voltage 275,0 VAC
Output Voltage 243,3 VAC

Measured values:
Measured Line Voltage = 232 VAC
Measured Output Line Voltage = 205 VAC

High Transfer Voltage is set to 265 VAC
Output Voltage is set to 240 VAC

I think AVR circuit can't read true value.

Is there any trimmer resistor on the pcb to fix it?
or
can I set High Transfer Voltage value > 265VAC to align read vs true Voltage values?
or
can I disable completely AVR function?

Thanks

Message was edited by: mauro657

[Anonymous user · Accepted solution]

clarkson wrote:
Is there a setting allowing you to set the high transfer voltage above 265?

Not in powerchute interface. Peraphs in some ini file or in registry or by some servicemode menu on powerchute or direct on UPS buttons?

Thanks