Multi-Tech Systems 7500 - Manual (Page 35)

ION 7500 / ION 7600 User’s Guide Demand Setup Menu
Chapter 2 - Using The Front Panel Page 35
#Sub Intervals
This numeric value specifies the number of sub-intervals in the sliding window.
Setting the #
SUB INTERVALS value changes the #Subintvls setup register in all of the
factory-configured Sliding Window Demand modules.
Predicted Response
This numeric value specifies the speed of the predicted demand output. It allows
you to set the sensitivity of the demand prediction. Typically, this value does not
need to be changed.
Specify 99 for the fastest prediction speed. The slowest prediction speed (0) causes
the predicted demand output to follow the sliding window demand output.
Setting the
PRED RESPONSE value changes the Pred Resp setup register in all factory-
configured Sliding Window Demand modules.
Thermal Demand Settings
The Thermal sub-menu contains the following settings:
Interval
This value specifies the number of seconds in the thermal demand interval. Setting
the
INTERVAL value changes the Interval setup register in all factory-configured
Thermal Demand modules.
Time Constant
This value is a time constant that specifies the rate at which the thermal demand
output responds to changes in the source input. Typically, this value does not need
to be changed.
The higher you set the time constant value, the faster the response time will be.
Values commonly used are 63 and 90. Setting the
TIME CONSTANT value changes
the Time Const setup register in all factory-configured Thermal Demand modules.
Demand Options
The Demand Options sub-menu contains the following setting:
Demand Lockout (days)
This value sets the minimum time allowed between consecutive demand resets
from the front panel only; any attempts to reset the demand outside the bounds of
the register will be ignored.
The default value for the Demand Lockout time is 25 days. The corresponding
setup register, labeled Demand Lockout Time, is found in the Display Options
module. This setting does not apply to demand resets initiated from software
communications connections.