46 ATR 421 - User manual
a.o.fa. (Auxiliary Output Falling). Auxiliary output active for falling
steps.
burn (Burners). Burner output for gas functioning.
fans (Fans). Fans output for gas functioning.
cooL (Cooling). Actuator output for cooling during double loop
functioning.
67 a.4.s.o. Alarm 4 State Output: Selects contact type for alarm 4 output.
n.o. (Normally Open). > Default.
n.c. (Normally Closed).
68 a.4.tH.
Alarm 4 Threshold: Selects setpoint value for alarm 4.
-999…+9999 [digit
9
] (degrees for temperature sensors).
> Default: 0.
69 a.4.HY. Alarm 4 Hysteresis: Selects hysteresis for alarm 4.
-999…+999 [digit
9
] (degrees.tenths for temperature sensors).
> Default: 1.0.
70 a.4.s.e. Alarm 4 State Error: Contact satus for alarm 4 output in case of
error.
o.c. (Open Contact) > Default
c. c. (Contact closed)
71 a.4.Ld. Alarm 4 Led: De nes led A4 status corresponding to relevant
contact.
o.c. (Open Contact)
c. c. (Contact closed) > Default
72 a.4.a.t. Alarm 4 Action Type: De nes alarm 4 action type on operating
cycle.
no.ac. (No Action). Changes only output related to the alarm.
> Default.
e. cY.s.
(End Cycle Signal). Cycle ends (STOP) with acoustic and visual
signalling. Changes output related to the alarm, buzzer sounds and
on display ashes aL. 4, until pressing OK.
au.si. (Audible Signal). Only acoustic signalling: buzzer sounds
9
The display of the decimal point depends on the setting of parameters Sen. and d.p.
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