Omron 3G3RX - Window Comparator (Disconnection Detection Odc;Oidc;O2 Dc)

4-66
4-2 Function Mode
4
Functions
Window Comparator (Disconnection Detection ODc/OIDc/O2Dc)
•The Inverter activates the window comparator output when the O/OI/O2 analog input value is
within the upper and lower limit levels of the window comparator. This function allows you to
monitor analog input based on the desired level (e.g. to detect a disconnection).
(Example 1)
Main circuit P-N voltage
Vpn (V)
Time
Time
Output
frequency
(Hz)
DC voltage kept constant
b050 = 02, 03
(Deceleration stop)
Power recovery
Main circuit DC voltage
b052
b051
Note: The main circuit DC voltage level, while the function is running, may fall below the b052 set value depending
on the proportional gain and integral time settings.
Power recovery
Main circuit P-N voltage
Vpn (V)
Time
Time
Output
frequency
(Hz)
DC voltage kept constant
b050 = 03 (Operation)
b050 = 02
(Deceleration stop)
Main circuit DC voltage
at power recovery
b052
b051
(Example 2)
Power recovery
Parameter No. Function name Data Default setting Unit
C021 to C025
Multi-function output
terminals 11 to 15
selection
27: ODc (analog O disconnection detection)
28: OIDc (analog OI disconnection detection)
29: O2Dc (analog O2 disconnection
detection)
54: WCO (window comparator O)
55: WCOI (window comparator OI)
56: WCO2 (window comparator O2)


C026
Relay output (AL2, AL1)
function selection
05
b060 (O)
Window comparator
O/OI/O2 upper limit level
Set an upper limit level.
Setting range: 0 to 100
Lower limit: Lower limit level + Hysteresis
width × 2
100 %
b063 (OI)
b066 (O2)
Set an upper limit level.
Setting range: -100 to 100
Lower limit: Lower limit level + Hysteresis
width × 2
b061 (O)
Window comparator
O/OI/O2 lower limit level
Set a lower limit level.
Setting range: 0 to 100
Upper limit: Upper limit level - Hysteresis
width × 2
0
%
b064 (OI)
b067 (O2)
Set a lower limit level.
Setting range: -100 to 100
Upper limit: Upper limit level - Hysteresis
width × 2
-100 %