Filter
Top Products
125
CHAPTER 3 SPECIFICATIONS
3
3.4 Buffer Memory Assignment
3.4.2 Details of the buffer memory
(34)CH Loop disconnection detection dead band (Un\G60, Un\G92, Un\G124,
Un\G156)
To prevent an error alarm of loop disconnection detection, set a non-alert band (temperature band in which the
loop disconnection is not detected) where the set value (SV) is at the center.
For details on the loop disconnection detection function, refer to the following.
Page 253, Section 4.22
(a) Setting range
The setting range is from 0 to full scale.
Ex.
When the value of the buffer memory is set as follows
•CH Input range (Un\G32, Un\G64, Un\G96, Un\G128): 38 (resolution: 0.1)
•CH Loop disconnection detection dead band (Un\G60, Un\G92, Un\G124, Un\G156): 50
(Loop disconnection detection dead band set value) × (resolution) = 50 × 0.1 = 5.0°C
Within the range of the set value (SV) ±5.0°C, Loop disconnection is not detected.
(b) Setting unit
The value to be set differs depending on the stored value in CH Decimal point position (Un\G1 to Un\G4).
( Page 86, Section 3.4.2 (2))
• No decimal place (0): Set a value in 1°C ( or digit) unit.
• One decimal place (1): Set a value in 0.1°C ( ) unit (tenfold value).
(c) Default value
The default values are set to 0 in all channels.
Standard
Time
Temperature process value (PV)
Set value
(SV)
Non-alert area
CH Loop disconnection detection
dead band
(Un\G60, Un\G92, Un\G124, Un\G156)
(Set one above the other with
the set value (SV) in the center)