A&D Weighing AD-4406 - Manual (Page 38)

Page 36 AD-4406 Weighing Indicator
11. 11. 11. 11.
Comparison
Comparison Comparison Comparison
This function has the "upper / lower limit comparison", the "5-stage (HiHi/Hi/OK/Lo/LoLo)
comparison", the "setpoint comparison" and the "simple batch". They compare the
weight data with preset parameters and can output the result of the comparison to the
display and buzzer, also to the relay-outputs of OP-03, OP-05 and OP-08.
Set the F-function F22 and F23 to use the "upper / lower comparison", the "5-stage
(HiHi/Hi/OK/Lo/LoLo) comparison" (these two comparison methods will be combined
and hereafter be called the "Weight check mode"), and F22 through F26 to use the
"setpoint comparison" and the "simple batch".
There are four code memories for the setpoints. Data is stored in non-volatile memory
and is not lost even if power is turned off or the batteries are depleted.
Code memory can be selected by key switch, external control input, or a command via
the serial interface.
11.1. 11.1. 11.1. 11.1. Weight Check Mode Weight Check Mode Weight Check Mode Weight Check Mode
This function compares the weight data with the upper and lower limit values
(upper/lower limit comparison) or with four limit values of HiHi, Hi, Lo and LoLo (5-stage
comparison), and displays, sounds the buzzer and/or outputs the result to the three
relays of HI, OK and LO. Use this comparison when judging whether a weight is proper.
Set the F-function F22 to 1, 2 or 3 to use the upper/ lower limit comparison and F22 to
4, 5 or 6 to use the 5-stage comparison.
Select a parameter of the F-function F23 for the comparison condition.
Set the F-function F26 (zero band) if setting F23:10 (not compared in the zero band).
Specify the upper and lower limit / HiHi, Hi, Lo, LoLo limit values.
When entering the limit value(s), it is not necessary to enter the F-function F22 and
F23 again unless comparison conditions are changed.
There are 3 type of setting values for each comparison.
(1) Set the limit value (upper and lower limit / HiHI, Hi, Lo, LoLo limit).
(2) Set the Target value and an acceptable tolerance (upper and lower) in weight.
The limit value is calculated automatically.
(3) Set the Target value and an acceptable tolerance (upper and lower) in
percentage of the target weight. The limit value is calculated automatically.
Example. Target = 50 kg, Upper limit = 51 kg, Lower limit = 48 kg
(1) Hi (Upper limit) : 51 (kg), Lo (Lower limit) : 48 (kg)
(2) TG (Target) : 50 (kg), Hi (Upper acceptable tolerance) : 1 (kg),
Lo (Lower acceptable tolerance) : 2 (kg) not a negative value
(3) TG (Target) : 50 (kg), Hi (Upper acceptable tolerance) : 2 (% of Target),
Lo (Lower acceptable tolerance) : 4 (% of Target) not a negative value
11.1. Weight Check Mode