Functional Diagram - gefran 850 Installation And Instruction Manual

4.18.1. Functional diagram

NONE HEAT1 COOL1
ALRM2 ALRM3 ALRM4
OR.123 O.1234 AND.12
A.1234 LBA1 BUT.SR
if model with CT1+CT2:
AL.HB
if the Timer function is enabled in MODE.1:
TMR1
if the Programmer 1 function is enabled in
parameter PROGR on the EN.FUN menu
P.HBB1 P.RUN1 P.HLD1
P.END1 P.EVE1
if the Logic option function is enabled:
LFB.O
if model with valve control:
V.OPEN V.CLOS
if model with digital inputs:
IN.DIG
if the PID2.E function is enabled in EN.FUN:
HEAT2 COOL2 LBA2
if the Timer function is enabled in MODE.2:
TIMR2
if the Programmer 2 function is enabled in
parameter PROGR on the EN.FUN menu:
P.HBB2 P.RUN2 P.HLD2
P.END2 P.EVE2
if model with Master Modbus serial (except output 1)
and at least one Master parameter configured as
MASTER:
CY.TIM
PWM MANAGEMENT with analogue levels
for Output 1 only
of CONT.A or CONT.C type
ALRM1
OR.12
AN.123
POWR1
P.RDY1
POWR2
P.RDY2
OFF
ON
Definition
state
STAT pag. 134
80209C_MHW_850-1650-1850_02-2020_ENG_pag. 133
Function
F.OUT pag. 135
CY.TIM
PWM MANAGEMENT
parameter only for digital
outputs with
F.OUT = HEAT1/COOL1
HEAT2/COOL2
Output
Scrolling
message
MSG.OU pag. 138