Toshiba GR200 Series Instruction Manual page 1079

For Variable type (exclusive for the BI2A)
The BI2A module has a unique feature as a substitute for setting (i)-1 in order that the user
can determine the guaranteed-minimum-pick-up voltages (thresholds) as required. This
unique feature is performed with settings [BI1-3_PICKUP], [BI4-6_PICKUP], [BI7-9_PICKUP],
and [BI10-12_PICKUP]; every setting is applied to a group of three binary input circuits.
Binary input circuits #1 to #3 follow the setting [BI1-3_PICKUP] and the user should set
the value between 18 to 222V DC
mentioned value holds true for #4 to #6 binary input circuits; similarly the setting [BI7-
9_PICKUP] is used for #7 to #9 binary input circuits; and finally the setting [BI10-12_PICKUP]
is used for #10 to #12 binary input circuits.
Note: The threshold value is fixed for all types of BIO modules except the BI2A. The
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user should notice that "binary IO module voltage type" influences these values
(see the 1st note in Table 5.4-1). These particular values are found when 220V dc
type is used.
Note: In the variable type, the user can set the threshold arbitrarily between 18 to 222V
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in DC, and can regulate its threshold voltage in a voltage step. Table 5.4-7 shows
the corresponding values with regard to guaranteed and typical thresholds in
response to the setting values. Note that the operation in the variable type is
segmented into 'Operate', 'Intermediate', 'and 'Non-operate' areas, which are
decided by the guaranteed-pick-up, typical-pick-up, and guaranteed-drop-off
levels, as illustrated in Figure 5.4-2.
for this setting. For the setting [BI4-6_PICKUP], the above
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- 1056 -
6F2S1914 (0.49)
GRL200 (Soft 033 & 037)