The on-board valve driver performs the following functions:

• Fast and accurate closed loop position control of the gas valve in response to the 4–20 mA or

CANopen/RT

Ethernet input command signal

• Actual valve position feedback via 4–20 mA or CANopen/RT Ethernet

• Independent remote shutdown input

• Valve/driver fault output

The driver includes protection and alarm indications for the following faults:

• Analog input out of range

• Feedback—open wire and short

• Input power out of range

• Position error

• Internal driver faults

• Actuator open/short

• Driver overcurrent

All faults are available through the CANopen/RT Ethernet connection or through an Ethernet Service

connection.