No. Grid
LED
LED Display Status description Action Pers
.
112 Grid failure undervoltage L2 Critical undervoltage L2 See action in the
event of an error
108
E
113 Grid failure undervoltage L3 Critical undervoltage L3 See action in the
event of an error
108
E
114 Internal communication er-
ror DC/DC converter
Communication error DC/DC Check that the com-
munication cable
between both con-
trol boards is fitted
correctly. If
everything appears
to be in order, re-
quest a service call-
out
E
115 Negative DC current 1 - - -
125 Relay control error The enable signal for the relay control is read
back. The shutdown is carried out if the level is
incorrect. AC relay error relay control
- -
126 AFI measurement techno-
logy error
AFI measurement technology error Both redundant AFI
measurement val-
ues are compared.
Shutdown occurs if
the deviation is too
great (>10 mA). Exit
F126 if the devi-
ation <8 mA.
E
127 AC voltage measurement
technology error
AC voltage measurement technology error Shutdown because
the voltage meas-
urements upstream
of and between the
relays do not match.
F127 exited after 3
s.
E
128 Internal memory error 1 Internal RAM test in Delfino (AC-DSP) failed - -
130 AFCI module self-test error Self-test error AFCI module The AFCI module
carries out cyclical self-tests on the entire
measurement chain. One channel is tested
every minute.
- -
141 Error controller output pin Error Controller output pin Monitoring the
output by reading back and comparing
- -
142 ARCActivationNotPossible You cannot activate the AFCI monitoring. - -
148 External memory error 1 External memory error 1 EEPROM on control
card defective
- -
149 Communication error AFCI
module
Communication error AFCI module Delfino
from AC controller has communication error
with AFCI module
- -
Manual Maintenance and troubleshooting | 11
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