
BRONKHORST®
Page 25 Operational instructions for digital multibus instruments 9.17.023
ALVE SAFE STATE
The controller module will go to a safe state in the following situations:
• If bus communication is lost and control mode = 0 (DeviceNet and PROFIBUS only)
• if initreset = 73
• if control mode = 22 (new safe state control mode)
In fail safe state the green LED will be blinking (0.1 s on, 2 sec off).
The valve will react to the fail safe state according to the table below.
Activate valve (max current)
Hold valve in current position
If Initreset = 73 the fail safe state mode will always be “hold valve in current position”
“Hold valve at safe value” can only be used with DeviceNet instruments.
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