Configuration Settings - Honeywell MicroniK 200 R7426A Installation & Start-Up Instructions

CONFIGURATION SETTINGS

The controllers R7426A,B are supplied with unconfigured
outputs to avoid damage of installed final control devices by
supply of unallowed output signals if the controller power
supply is turned on.
All configuration parameters have to be set to select the
correct control functions as required for the job application
and to start control operation and synchronization of the final
control devices.
Direct - Reverse Action
Dir/Revx, x = Y1, Y2 or Y3 (C.01...C.03)
In the case of the R7426A, the output action of Y1 must be
reversed for heating control.
In the case of the R7426B,C, the output action of Y1 must be
reversed if the output controls an energy recovery system
instead of mixed air dampers.
In the case of R7426A,B controllers with 3-position floating
output, it is sometimes necessary to exchange the wiring
connections open-close (OUT2-OUT1) in order to ensure
correct opening and closed direction of the valve or damper.
The necessity of doing this depends upon whether the output
controls a 2-way or 3-way valve or upon the direction the
damper shaft moves to open the damper (cw or ccw).
On actuators equipped with electronic positioning, the correct
direction in accordance to the analog output signal 0/2 Vdc =
0% and 10 Vdc = 100% must be set by the direction selector
switch or plug (see Specification Data sheets of actuators).
For outputs Y2 and Y3 on the R7426B,C controllers, this can
be performed by setting the configuration parameter Dir/Rev
to Rev instead of exchanging the wiring or selection on the
actuator.
If the configuration parameter Dir/RevY1 = Cho, the output
Y1 is reversed in action depending on the occupancy input
(summer/winter changeover function).
Operating Range Selection
Ctrltyp (C.04)
The R7426A controller provides two operating ranges which
can be selected by the configuration parameter Ctrltyp
(Lo = 0...50°C, Hi = 0...130°C).
Depending on this parameter setting, the setpoint ranges for
the main temperature (W1), limit temperature (W
submaster temperature (W
temperature applications (Ctrltyp = Lo) or for water
temperature applications (Ctrltyp = Hi).
Changing the configuration parameter Ctrltyp value from Hi-
to Lo control range or vice versa causes the controller to
change all parameter values to default, depending on the
selected Ctrltyp value.
For a direct parameter reset by the user refer to section
"Resetting Parameter Values to Default Values" on page 12.
) and
lim
) are selected for air
cas
R7426A,B.C Temperature Controller
Control Point / Setpoint Adjustment
CPATYP (C.05)
The control point or setpoint can be adjusted via the internal
or external potentiometer connected to the CPA/SPA input.
The potentiometer type is selected by the configuration
parameter CPATYP (see Table 3).
Table 3. Selection of CPA/SPA Type
CPA / SPA
CPATYP
range
CPATYP 0 CPA: ±5 K
CPATYP 1
CPA: ±5 K
(953...1053Ω)
CPATYP 2
CPA: ±5 K
(0...100kΩ)
CPATYP 3 SPA:
15...30 °C
(10...20kΩ)
Output Control Range Selection
YRange (C.06)
The configuration parameter YRange is available only on the
R7426C controller and is required to select the output control
range (0...100%) to either 2...10Vdc (YRange = 0) or
0...10Vdc (YRange = 1).
The selected control range is common to all outputs.
Enabling Start-up Routine (C.07)
A start-up routine is provided to prevent start-up problems for
the R7426B,C controllers (three-output controllers). This
routine can be enabled by setting the configuration
parameter Startup to ON.
Individual Output Function Selection
YxMode, x = 1, 2 or 3 (C.08...C.10)
The R7426A,B controllers provide a choice of output signals
suitable for operating a range of final control devices accor-
ding to the configuration parameter YxMode (x = 1, 2 or 3)
(see Table 4).
Each output can be configured separately by the
configuration parameter YxMode (x = 1, 2, or 3).
Table 4. Individual Output Function Selection
Output Function
Valve or damper
actuators (floating mode)
2-stage ON/OFF
sequence control
3-stage binary ON/OFF
sequence control
Electric heat current valve
(pwm output)
unconfigured
5
Sensor type
internal
T7412B1016 (Pt 1000)
T7412B1057 (Pt 1000)
T7412C1030 (Pt 1000)
T7412B1008 (NTC 20kΩ)
T7412C1006 (NTC 20kΩ)
T7412B1024 (BALCO 500)
T7412B1040 (Pt 1000)
YMode YxMode
= 0
0
(x = 1, 2, or 3)
= 1
0
(x = 1, 2, or 3)
= 2
0
(x = 1 or 3)
= 3
0
(x = 1 or 3)
= 2 (x = 2)
n.a.
= 4 (x = 1 or 3)
EN1B-0206GE51 R0602
R7426
A,B
A,B
A,B
A,B
A,B