Fridgewatch 2100 Controller Mk4
Publication 3-58
Section 3
Page 76 of 152
Issue 1.1 : 01/08
Operator Settings
(
current
date
and
time
)
S05
Proportional Band
bar g/
°
C
11.3
S06 Integral Action Time
sec
240.
S07 Derivative Action Time
sec
360.
Once the setting value has been modified, press the
ENTER button and the ’flashing’ will
return to the setting number. The new value can be accepted and entered into the list or another
setting value or values modified before finally accepting all the changes.
To accept the modified value(s) and enter them into the list, turn the Supervisor Key to the
Locked position. Remove the key.
Make a note of the new operator setting value(s) in the box(es) provided in 16. Appendix 3 -
Settings Record.
Fig 29 (continued) Looking at or Changing Operator Settings
(b)
If the compressor is not running, wait at least 10 seconds to make
sure Fridgewatch 2100 has accepted the mode change. If the
compressor is already running it should stop and will be inhibited
from restarting.
(c)
Turn the Supervisor Key to the Unlocked position and proceed as
described under 9.4.1. Inputting Configuration Settings.
(d)
Restart the plant in the required operating mode; refer to 9.7.
Changing the Operating Mode.
9.7.
Changing the Operating Mode
Follow the steps described in Fig 30 Changing the Operating Mode.
If this is the first start, for reasons of safety start the plant in ‘manual’
start/stop – ‘manual’ capacity control mode; refer to 9.4.3. Operating
Mode for the First Start.
If the Fridgewatch 2100 Controller is not to be run in Master/Slave
configuration but is subject to a central controller, for example, a
Fridgewatch Auto Controller or System Controller, Operator Setting S19
Master/Slave Connected can be set to provide a digital output indicating
the operating mode; refer to the description of S19 in 11.1. Operator
Settings S1/S39.
9.8.
Checking the Software Version Number
It is important to check the version number of the software loaded into the
Fridgewatch 2100 Controller as this influences the capabilities of the
controller. Adopt the following procedure:
(a)
Select ‘off’ mode; refer to 9.7. Changing the Operating Mode.
If the compressor is not running, wait at least 10 seconds to make
sure Fridgewatch 2100 has accepted the mode change. If the
compressor is already running it should stop and will be inhibited
from restarting.
(b)
Reset the microprocessor; open the upper control panel door and
press the ‘reset’ button on the back of the door mounted RAMP4
Processor Card.
The version number will be displayed for a few seconds, before the
display reverts to how it looked before the power supply was
interrupted.
