Toshiba GR200 Series Instruction Manual page 952

Input voltage
Figure 5.4-2 Operating area in the variable type
Note: In practice, the pick-up voltages depend on respective binary circuits physically
This means the characteristics are not affected by the ambient conditions and the
applied voltages.
Comparison feature for contact chatter
(ii)
The input circuit incorporates a comparison feature that protects against contact chatter and
this feature is configured using the setting [CMP_NUM]. Figure 5.4-3 illustrates this feature;
the comparison feature removes contact chatter. The period 't' applied for the removal of contact
chatter can be configured by setting a value for [CMP_NUM]. The formula for the calculation
of 't' is,
The setting [CMP_NUM] is provided for all binary input circuits.
Actual input signal
Imported signal by
binary input circuit
Figure 5.4-3 Chattering countermeasure (e.g. [CMP_NUM] = 4)
Operating area
Intermediate area
Non-operating area
[ CPM_NUM ] ×
System Frequency×12
t
- 931 -
Guaranteed pick up level
Typical pick up level
Guaranteed drop off level
1
6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)