Delay Time For Hb Alarm Activation; Hb Alarm Threshold; Current Hb.tr Alarm Threshold; Calibration Status - gefran GRM-H 15 Configuration And Programming Manual

5.2.1.6. Delay time for HB alarm activation

Acronym App / GF_eXpress menu
Hb.t
Delay time for HB alarm activation
The value must be greater than the power output cycle time.
min...max: 0 ...999 s

5.2.1.7. HB alarm threshold

Acronym App / GF_eXpress menu
A.Hb
Current threshold for the HB alarm: below this measured current threshold, for a period greater than
Hb.t, the alarm will trigger (with Hb.F = 0)
min...max: L.tA ...H.tA A

5.2.1.8. Current Hb.tr alarm threshold

Acronym App / GF_eXpress menu
Expert  Status  Diagnostics
Hb.tr
HB alarm threshold as function of power on load
The Hb.tr threshold value of the HB alarm is calculated in two different ways, depending on the
chosen operating mode:
if FCT, BF, HSC mode: Hb.tr = A.Hb
if PA mode: Hb.tr = A.Hb * sqrt(Ou.P)

5.2.1.9. Calibration status

Acronym App / GF_eXpress menu
STATUS
Device Status STATUS indicates whether the device is in calibration/current threshold learning mode.
NOTE: The status is stored in the retentive memory, so if the device is put in calibration mode and
then turned off, it will still be in learning mode at the next start.
bit
7 HB alarm threshold calibration in progress
Alarms  HB Alarm
Alarms  HB Alarm
Controls
Meaning
819XX_MAN_GRM-H_11-2022_ENG_pag. 38
Attribute Retentive
Description
R/W
■
Attribute Retentive
Description
R/W
■
Attribute Retentive
Description
R -
Attribute Retentive
Description
R/W
■
U.M. Default
s 10
U.M. Default
A 0.0
U.M. Default
A -
U.M. Default
- -