Satchwell IAC 600, Manual

Page: 6 / 24

LOGIC MODULES
(Cont.)
ROTATION MODULE
x 3
The Rotation module is used to rotate upto six digital inputs in
sequence. Rotation is triggered by a digital pulse on the rotate input.
Only those inputs connected are rotated. This is typically used to
rotate modular plant such as boilers, chillers, pumps etc to even out
the wear on the individual items of plant.
Current Lead (review only) 1 to 6 –
Rotate
Allows the module to be manually rotated. Each selection rotates to
the next item of plant.
On or Off Off
STOPWATCH MODULE
x 8
The Stopwatch module has a digital input that when set to on will run
the stopwatch. The stopwatch will stop when the input is set to off. A
second digital input on the module is used to reset the module to zero.
A typical use for this module is plant hours run, boiler/chiller rotation,
switching the logging module for timed logs etc.
Current Count
This parameter is usually used to review the current count but it also
allows the user to set an initial count value if required.
0 to 10,000 0
Rollover Time
The digital output will produce a pulse at the set rollover time and the
stopwatch will reset to zero and start counting again.
0 to 10,000 3600
Selected Count Units Seconds, Minutes,
Hours or Days Secs
COUNTER MODULE
x 8
The Counter module is used to count pulsed digital inputs on either the
rising edge of the momentary digital input or on both the rising and
falling edges. The secondary output will be pulsed each time a count
is made. This includes the falling edge if that has been set in the
counter. The secondary digital input is used to zero the counter at a
time other than when the rollover count is reached.
Current Count
This parameter is usually used to review the current count but it also
allows the user to set an initial count value if required. 0 to 10,000 0
Rollover Count
At a preset rollover count the module will give a momentary output
from the primary output, reset to zero and start counting again.
0 to 10,000 1000
Count Rising and Falling Edges
Sets the module to count both the rising and falling edges of the pulsed
input. Yes or No No
CONTROL MODULES
CONTROLLER MODULE, 2 STAGE
x 6
Current Set Value (review only)
This parameter displays the calculated set value. This may differ from
the main set value if reset is used. –10,000 to 10,000 –
Integral Action Dumping On
The optimiser set point must be equal to the controller set value minus
the appropriate deadzone.
Integral Action Dumping Off
The optimiser set point must equal the controller set value.
Current Input Value (review only)
This parameter displays the current value of the main control sensor. –10,000 to 10,000 –
Schedule Mode (review only)
This parameter shows the timeschedule mode the control module is
currently operating in. Occupied 1,
Occupied 2,
Relaxed or Night –
Override
This parameter is used to override the controller. None, Occupied 1,
Relaxed, Occupied 2
or Night None
Stage 1 Level
This parameter displays the Stage 1 output position as a percentage,
where 0 = Full Off and 100 = Full On. In Temperature Control
schemes Stage 1 is used for heating. 0 to 100% –
Stage 2 Level
This parameter displays the Stage 2 output position as a percentage,
where 0 = Full Off and 100 = Full On. In Temperature Control
schemes Stage 2 is used for cooling. 0 to 100% –
Set Value
This parameter is used to set the desired controller set value. –10,000 to 10,000 19
Set Value Minimum
This value sets the lowest set value the controller is allowed to use.
–10,000 to 10,000 –10,000
Set Value Maximum
The value sets the highest set value the controller is allowed to use.
–10,000 to 10,000 10,000
MODULES AND FUNCTIONS
Bubbleland
Symbol
Module Range Default
DS 2.951A 6 - 24 05/98