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The ST LED shows the following states which are shown in order of priority (the first in the table has the
highest priority):
Key management (see chapter Configuration
Device configuration "3.1.4. Key" on page 24)
NFC connection: field detection on
NFC connection: recipe processing phase received
NFC connection: recipe saving error received
Thermal alarm (SSR_over_heat or SSR_temperature_sensor_
broken)
SSR_SHORT alarm
SHORT_CIRCUIT_CURRENT alarm
Current sensor broken
Device with partial HB option with activated calibration
Device with partial HB option not calibrated (just installed)
HB alarm
NO_VOLTAGE or NO_CURRENT alarm
Mains voltage frequency alarm
MAN
RUN for DIGITAL / ANALOG control (*)
OFF software
RUN for IO-LINK control (**)
(*) Only for GRM-H-x-x-AN-x-x-x-x-x-x-x models
(**) Only for GRM-H-x-x-I-x-x-x-x-x-x-x models
STATO
819XX_MAN_GRM-H_11-2022_ENG_pag. 26
4.
LED
GREEN
STEADY
FLASHES
■
4
■
1
■ slow
■ 2
RED
STEADY
FLASHES STEADY FLASHES
■ fast
■ slow
■
5
■
4
■
2
■ 1
■
■ 3
BLUE
■
■ fast
■3
■ slow
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