SECTION 5
TROUBLESHOOTING
DOCUMENT: 150919
PV-15208 Photovoltaic Inverter
Operation and Maintenance Manual
Copyright 2000, Xantrex Technologies Inc./Trace Technologies Corp.
5-4
(6) AC Line Over Frequency Fault (0x0800)
The AC frequency exceeded the maximum-programmed limit. This limit is set to 60.5 Hz and the system
response time limit is set to 3 cycles to insure the PV-15208 disconnects from the utility within the time
allowed by UL1741.
Possible causes:
•
The utility frequency exceeded the allowable limit (60.5 Hz by default). Verify the utility frequency
is stable and within allowable operating limits.
•
There is a problem with one or more of the AC sense wires (see system schematic in Section 7).
This fault is auto-resetting. The unit will automatically restart after line has stabilized within normal
limits for 5 minutes.
(7) AC Line Voltage Low Fault (0x0100)
The utility AC voltage fell below the minimum programmed limit. There are two levels of response to
low line voltage conditions. The first level of response is set to 195.5 VAC with a time delay of 5 cycles.
By default, the second level is set to 156 VAC with a time delay of 1 cycle, and is not field adjustable.
Possible causes:
•
The utility voltage fell below the allowable limit (195.5 VAC by default). Verify the utility voltage is
stable and within allowable operating limits.
•
There is a problem with one or more of the AC sense wires (see system schematic in Section 7).
This fault is auto-resetting. The unit will automatically restart after line has stabilized within normal
limits for 5 minutes.
(8) AC Line Voltage High Fault (0x0200)
The utility AC voltage exceeded the maximum-programmed limit. There are two levels of response to
high line voltage conditions. The first level of response is set to 220.5 VAC with a time delay of 5 cycles.
By default, the second level is set to 247.5 VAC with a time delay of 1 cycle, and is not field adjustable.
Possible causes:
•
The utility voltage exceeded the allowable limit (220.5 VAC by default). Verify the utility voltage is
stable and within allowable operating limits.
•
There is a problem with one or more of the AC sense wires (see system schematic in Section 7).
The fault is auto-resetting. The unit will automatically restart after line has stabilized within normal
limits for 5 minutes.
(9) DC Bus Over Voltage Fault - Hardware (0x0020)
The DC bus voltage has exceeded the maximum limit.
This is also the PV input voltage sense point. Check the PV input voltage at the PV disconnect switch.
If the voltage is below 600 VDC, cycle the on/off switch and restart the PV-15208.