Pleiger Elektronik
GmbH & Co. KG
Edition: 6/2007 Subject to modifications
Manual for 362MC
Page: 7
3
Operating modes
The 362MC incorporates two operating modes - Automatic and Manual / Emergency manual mode. A
modified menu is provided for each operating mode. Both operating modes offer an extended version of
the menu for commissioning purposes. This extension to the menus for configuration and
parameterisation of the controller is protected by a password to prevent unauthorised use.
3.1
Automatic mode
The green
Auto
LED lights up; the controllers are operating in a closed-loop system. The setpoints can
be altered via the setpoint entry or the commissioning menus can be activated via the menu selection
function, provided that the valid password has been entered.
3.1.1 Setpoint entry
After selecting the Setpoint Entry
menu under the menu selection
option in Automatic mode, the
setpoints and the alarm limits of
both controllers can be altered.
The 1
st
character of the name
displayed under the entry option
denotes the
number of the controller
- 1 or 2.
The letter A or B appears as the final character,
to distinguish between the main setpoint (A)
and the second setpoint (B) that becomes active
in the case of
external setpoint switching
.
The value for the
lower alarm limit
of each controller is indicated by
-
and the value for the
upper alarm
limit
is indicated by
+
.
See also
Explanatory note on limit alarm (5.3.3)
.
This presentation of the setpoint entry procedure is based on the assumption that both controllers have
been configured as fixed setpoint controllers with setpoint type fixed value. The 1
st
controller setpoint is
101.0°C for Setp A and Setp B, irrespective of the setpoint switching function. 82.0°C is defined under
Setp A for the 2
nd
controller.
When external setpoint switching applies, Setp B is set at 65.0°C. When a different setpoint type is
configured, the setpoint entry display has a different appearance.
In the case of the setpoint type
external setpoint
(extern), an external value connected
at the input becomes the setpoint. It is thus not possible to alter this value by entering a
different value.
When the controller is implemented with a
setpoint programme
, the user
can switch between the stored programme numbers 1 to 5 (in this example 2).
See also
Functional extensions (Appendix C3)
.
Display example
with password
entry to the
commissioning
menu
Operational display
Setpoint menu
Password menu
Menu selection in automatic mode
Value+1
Value-1
Save
new value
Alter value
