Honeywell DCP551 Mark ΙΙ User Manual page 125

No.
Item code
Control output system
21
C 21
Unused
22
C 22
Control operation
23
C 23
Unused
24
C 24
PV channel switching type
25
C 25
PV channel switching system
26
C 26
PV channel switching point
27
C 27
Factory default
Item
settings
1
----
0
----
0
0
10000PVU
Chapter 7. PARAMETER SETUP
User
Settings and descriptions
settings
0 : 5S output (current proportional SP output)
1 : 5G output (current proportional control output)
2 : 6D output (voltage time proportional control output) system A
3 : 6D output (voltage time proportional control output) system B
4 : 8D output (open collector time proportional control output) system A
5 : 8D output (open collector time proportional control output) system B
[Description:]
The difference between system A and system B is in the output system of
ON-OFF control and auto-tuning.
System A: Output ON-OFF is performed regardless of time proportional
output cycles and output limits.
System B: The output limit upper limit value is output instead of on and the
output limit lower value is output instead of off according to time
proportional output cycles.
[Description:]
----- is displayed and setting cannot be performed.
0: PID-A reverse operation
1: PID-A normal operation
2: PID-B reverse operation
3: PID-B normal operation
[Description:]
PID-A: deviation derivative PID (system where SP
changes are affected by derivative action)
+
SP
PID-B: derivative-based PID (system where SP changes
are not affected by derivative action)
+
SP
0: PV1 low-temperature sensor, PV2 high-temperature
sensor
1: PV1 high-temperature sensor, PV2 low-temperature
sensor
2: PV1 tied
3: PV2 tied
4: Backup switching
[Description:]
----- is displayed and setting cannot be performed on
model with one PV input channel.
0: External switch switching
1: Automatic switching A (switching + dead band)
2: Automatic switching B (switching + dead band +
external switch)
3: Automatic switching C (2-point proportional)
[Description:]
----- is displayed and setting cannot be performed on
model with one PV input channel.
When is set to more than 1, [----] is displayed and
C25
setting cannot be performed.
Ð19999 to +20000 PVU (PV1)
[Description:]
----- is displayed and setting cannot be performed on model
with one PV input channel.
When is set to more than 1, ----- is displayed and setting
C25
cannot be performed.
When is set 0, ----- is displayed and setting cannot be
C26
P
MV
D
I
PV
P
MV
I
D
PV
7-23