81906_MAN_GRP-H_02-2022_ENG_pag. 18
Some basic settings can be edited or the load current
calibration phase started using the key and the LEDs
on the front of the object. The basic settings are:
• “Partial HB alarm threshold learning” command See
chapter Allarme HB (Heater Break)
alarm threshold teach-in function” on page 29
(for GRP-x-x-x-x-1-x-x-x-x-x models)
• Number of loads in parallel under a single zone
for calculating the partial HB alarm threshold (see
parameter Hb.P) (for GRP-xxxx-1-xxxxx models)
• Type of analogue input (see tyP parameter) (for
GRP-xxx-AN-xxxxxx models)
• Minimum number of cycles of the Burst Firing mode
(see parameter bF.Cy) (only if hd.5 = BF).
• Full scale potentiometer calibration
• Alarm memory reset
Below are the instructions to change settings via key
and feedback from the front LED.
With the key released for at least 30 s (15 s if you are
in the phase of indicating the setting to be modified)
you return to normal operation.
* The device does NOT automatically enable the power output after the HB calibration is applied.
The device waits for the command signal (digital signal ON, analogue or IO-Link is recommended > 50%). A
few operating waves are enough for the device to register the current and voltage value as the nominal value
of the load and exit calibration.
It is recommended to carry out calibration in load regime conditions. This is to avoid false alarms due to current
drop, not due to load break in parallel, but to the consumption of different current between resistors at room
temp. and working temp.
Normal operations resume with the key released for at least 15s.
In Heater Break or Power Fault with memory alarm
conditions, the alarm memory can be reset by
pressing the key according to the flow illustrated
below:
NORMAL
OPERATION
LED: on or flashing as
indicated in the
LED chapter
LED status
with key
pressed
Key
pressed
Key pressed > 3 s
and then released
Key
repeatedly
pressed and
released
> 0.2 s
Key pressed > 9 s
and then released
Key pressed > 3 s
and then released
Key pressed > 15 s
and then released
Key
repeatedly
pressed and
released
> 0.2 s
Key pressed > 3 s
and then released
Key pressed > 3 s
and then released
Key
repeatedly
pressed and
released
> 0.2 s
Key
pressed
> 6 s
Key
pressed
> 12 s
3 s
3 s
3 s
3 s
3 s
SETTINGS TO MODIFY NUMBER
OF LOADS (HB.P) and
CALIBRATION HB
(for model GRP-Hxxx-1-xxxxxx only)
GREEN LED:
on
SETTINGS TO MODIFY
ANALOGUE INPUT TYPE (TYP)
and CALIBRATION OF FULL
SCALE POTENTIOMETER
(for model GRP-Hxxx-1-xxxxxx only)
RED LED:
on
SETTINGS TO MODIFY THE
NUMBER OF MINIMUM START
CYCLES (BF.CY)
(only if hd.5 = BF)
BLUE LED:
on
NUMBER OF
LOADS INDICATION
GREEN LED:
it flashes according
to the value of Hb.P
ANALOGUE INPUT TYPE
INDICATION
RED LED:
flashes according
to the tyP value
MINIMUM NUMBER OF START
CYCLES INDICATION
BLUE LED:
flashes according
to the value of bF.CY
NUMBER OF LOADS
CONFIRMATION
GREEN LED:
quickly
flashes for 1s
NUMBER OF LOADS
DATA ENTRY
GREEN LED:
turns on by
pressing the key and turns off
by releasing the key
ANALOGUE INPUT
TYPE DATA ENTRY
RED LED:
turns on by
pressing the key and turns off
by releasing the key
ANALOGUE INPUT TYPE
CONFIRMATION
RED LED:
quickly flashed
for 1s
GREEN LED
RED LED
BLUE LED
MINIMUM NUMBER
OF START CYCLES
CONFIRMATION
BLUE LED:
quickly
flashes for 1s
MINIMUM NUMBER
OF START CYCLES
DATA ENTRY
BLUE LED:
turns on by
pressing the key and turns off
by releasing the key
FULL SCALE
POTENTIOMETER
CALIBRATION ON
(for tyP = 6 only)
HB
CALIBRATION ON
(*)
3 s
Key
pressed
Key
pressed
Key pressed > 1 s
and then released
1 s
HB or PF ALARM MEMORY
RESET SETTING
RED LED:
on
MEMORY RESET
CONFIRMATION
RED LED:
quickly flashed for 1s
RED LED
OPERATION
WITH HB or PF
ALARM ON
LED: on or flashing as
indicated in the
LED chapter
3.1.4.
Key
