2Ma Fault Operation - Honeywell Vertex VC 4 User Manual

2mA Fault Operation

Use the 2 mA fault operation function to enable a 2 mA signal on the current loop that indicates when an instrument
fault occurs. The VERTEX™ VC4 differentiates between a power loss and a fault by dropping the signal to 0 mA after a
power loss or CPU failure and 2 mA when an instrument fault occurs. When enabled, the fault operation function
causes the calibrate current loop function from the Calibration Mode to include the 2 mA outputs as part of the
VERTEX™ VC4's fault routine.
1. In the left navigation panel, tap OVERVIEW
2. Tap on the I/O Settings button
3. Under 4~20mA tag, select Enable 2mA Fault and tap APPLY button to enable 2mA fault operation function.
TM
Vertex VC4 System
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