Omron SYSDRIVE MX SERIES User Manual page 148

4-2 Function Mode
Data
05
Available input terminals
Required settings
External Analog Input Disconnection Detection
•Outputs a signal if an error is detected in the external analog inputs (FV, FI).
4
Data
06
Available input terminals
Required settings
•The disconnection detection signal is output if the frequency reference of the external analog input
remains below the starting frequency for 500 ms.
•The signal stops 500 ms after the frequency reference has exceeded the starting frequency.
•Helps detect disconnection when a frequency reference is issued from the external analog inputs
(FV, FI) with the frequency reference selection set to the terminal (A001 = 01).
•Enabled only when the external analog inputs (FV, FI) are selected.
Example 1: Disabled in multi-step speed operation even when the frequency reference is set to
Example 2: Disabled even when the FV/FI selection is set to the FV/VR selection (A005 = 02) or
4-57
Symbol Function name
AL Alarm output
Symbol Function name
Dc Disconnection detection
the external analog input (A001 = 01).
FI/VR selection (A005 = 03) since the frequency reference is set on the Digital Op-
erator (volume) with the AT terminal turned on.
Starting
frequency
0Hz
ON
External analog
OFF
input disconnection
detection (DC)
500 ms
Status
ON The Inverter is in trip status.
OFF The Inverter is normal.
P1-PC, P2-PC, MA-MC (or MB-MC)
C021, C026
Status
ON The Inverter is in trip status.
OFF The Inverter is normal.
P1-PC, P2-PC, MA-MC (or MB-MC)
C021, C022, C026, A001, A005
External analog input frequency
reference (FV, FI)
500 ms
Description
Description