Messages On The Display And The "Fault" Led - Kaco Powador 2002 Operating Manual

Maintenance/Troubleshooting
Authorised electrician
9.5

Messages on the display and the "Fault" LED

Many fault signals indicate a fault in the grid. They are not operational faults of the inverter. The triggering levels are
defi ned in standards, e.g. VDE0126-1-1. The inverter shuts down if the values exceed or fall below the approved levels.
9.5.1 Display of status and fault messages
Display
FS (fault status)
OS (operating status)
Details regarding the fault or operating status can be found either on the display or in the data that was recorded
through the RS485 interface.
9.5.2 Status and fault signals
The following table lists the possible status and fault signals that the inverter shows on the LCD and the LEDs. For
the status, consult the data that is logged via the RS485 interface.
BS = operating status, FS = fault status;
B = Action of the operator
E = The indicated work may only be carried out by an authorised electrician.
K = The indicated work may only be carried out by a service employee of KACO new energy GmbH.
Status Display
OS 1 Start from ### V
Measurem. ### V
OS 2 Voltage too low!
OS 8 Self-test
FS 10 Temperature in
unit too high
FS 18 Resid. current
shutdown
FS 19 Generator
insulation fault
Table 7: Operating statuses and fault messages on the display
Page 48
Fault LED (red)
!
ON
!
OFF
Explanation
!
Self-test: The grid parameters and gen-
erator voltage are being checked.
Generator voltage and power are too
low; situation before transition into
night shutdown
Checks the shutdown of the power
electronics as well as the grid relay
before feed-in mode
In case of overheating, the inverter
switches off . Possible causes:
• ambient temperature too high,
fan covered,
inverter defective.
Residual current was detected. The
feed-in was interrupted.
There is an insulation fault on the PV
generator. The feed-in was interrupted.
• Fault signal relay has switched.
• Feed-in was ended due to a fault.
• The fault signal relay releases again.
• The inverter feeds back into the grid again after a
country-specifi c time period.
Action
-
-
-
 Clean the fans.
 Notify your
 Notify your
 Notify your
Operating Instructions for Powador 2002-6002_EN
By
-
-
-
B
authorised elec-
B
trician.
E
E
authorised elec-
trician.
E
authorised elec-
trician if the fault
occurs several
times.