Honeywell R7426A Benutzerhandbuch
R7426A,B,C TEMPERATURE CONTROLLER WITH AND WITHOUT REAL-TIME CLOCK
5
EN1B-0203GE51
R0507C
control par.
setting I / setting II
R7426
no. name
description
low
high def.
reso-
lution
unit
A B C
actual
value
P.01 W1
Main setpoint for input T1
0
50 /
130
21 /
70
0.5
°C x x x
P.02 Wlim
Limit setpoint (low or high) for input T2
5 /
30
50 /
130
16 /
90
1
°C x x x
P.03 Wcomp
Compensation changeover point for input T3
-5
40
20
1
°C x x x
P.04 Wi
Winter compensation authority -350
+350
0
2
%
x
x x
P.05 Su
Summer compensation authority -100
+100
0
1
%
x
x x
P.06 Wcas
Submaster or cascade setpoint
OFF, 0
50
20
0.5
°C x x x
P.07 Rcas
Cascade reset span adjustment
0
40
10
0.5
K
x x x
P.08 Xp1
Throttling range (main control loop) for T1
0.5
40
2
0.5
K
x x x
P.09 Xp2
Throttling range (cascade or limit control loop)
for T2
0.5 40
10
0.5 K
x
x x
P.10 Xpc
Cooling throttling range for sequence control
OFF, 1
40
3
0.5
K
x x
P.11 Xph
Heating throttling range for sequence control
1
40
6
0.5
K
x x
P.12 tr1
1)
Reset time (main control loop)
OFF,
20 sec
20
min
OFF
10/
0.5
sec/
min
x x x
P.13 tr2
1)
Reset time (cascade control loop)
OFF,
20 sec
20
min
OFF
10/
0.5
sec/
min
x x x
P.14 MINPOS
Minimal pos. for air damper actuators
0
50
20
1
%
x x
P.15 Ystart
Start point for mid range shift of output Y1
-20
+20
0
0.5
K
x x x
P.16 SOFFS
Offset of main setpoint in Standby mode
0
10
2
0.1
K
x x x
P.17 T1Cal
Calibration of temperature sensor T1
-20
+20
0
0.1
K
x x x
P.18 T2Cal
Calibration of temperature sensor T2
-20
+20
0
0.1
K
x x x
P.19 T3Cal
Calibration of temperature sensor T3
-20
+20
0
0.1
K
x x x
P.20 RetOffs
Return air offset to simulate exhaust air cond.
OFF, 0
5
OFF
0.1
K
x x
P.21 RuntimeY1 Actuator run time for Y1
6
180
60
1
sec x x
P.22 RuntimeY3 Actuator run time for Y3
6
180
60
1
sec
x
P.23 RuntimeY2 Actuator run time for Y2
6
180
60
1
sec
x
P.24 NightLow
2)
Night low limit against temperature extremes
OFF, 8
19
OFF
1
°C x x x
P.25 NightHigh
2)
Night high limit against temperature extremes OFF, 21
40
OFF
1
°C x x x
P.26 NOFFS
2)
Offset of main setpoint in Night mode
0
30
5
0.1
K
x x x
1)
for tr > 2 min
⇒ resolution = 0.5 min, for tr < 2 min ⇒ resolution = 10 sec
2)
on Controllers with Real-Time Clock, only
For detailed information of control parameters see chapter Parameter Settings and Adjustment.
Table 5. Control parameters R7426A,B,C