ATR 421 - User manual 37
14 mn.p.b. Minimum Proportional Band: Selects proportional band min.
value selectable by automatic tune.
0…9999 [digit
6
] (degrees.tenths for temperature sensors).
> Default: 5.0.
15 ma.p.b. Maximum Proportional Band: Selects proportional band
max. value selectable by automatic tune.
0…9999 [digit
6
] (degrees.tenths for temperature sensors).
>
Default: 50.0.
16 mn.i.t. Minimum Integral Time: Selects integral time min. value
selectable by automatic tune.
0…999.9 seconds. > Default: 10.0.
18 act. t. Command Action Type: Command output regulation type.
Heat (Heat). Heating regulation (n.o.). > Default
Gas (Gas). Heating regulation with burners/fans management for
gas kilns. During falling steps burners are switched o .
G. f.s . (Gas Falling Steps) (GID). Heating regulation with burners/fans
management for gas kilns. During falling steps burners works in
ON/OFF (servo always closed).
G.f.s.s. (Gas Falling Steps Servovalve) (GIDS). Heating regulation with
burners/fans management for gas kilns. During falling steps gas
modulation is done also by servo-valve.
cooL (Cool). Cooling regulation (n.c.).
19 c. HY. Command Hysteresis: Hysteresis in ON/OFF or dead band in
P.I.D. for command output.
-999…+999 [digit
6
] (degrees.tenths for temperature sensors).
>Default: 1.0.
20 p. b .
Proportional Band: Process inertia in units (Ex: if temperature in °C)
0 ON/OFF if also t.i. equal to 0. > Default.
1…9999 [digit
6
] (degrees.tenths for temperature sensors ).
21 t.i. Integral Time: Integral time. Process inertia in seconds.
0.0…999.9 seconds. 0 disabled integral. > Default: 0.0.
6
The display of the decimal point depends on the setting of parameters Sen. and d.p.
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