Operating and Maintenance Instructions
210-OMI14229-Iss8.1
CN1116 Full OMI
Page 35 of 47
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Fan Array Maximum RPM Limit
–
automatically set each fan to its maximum RPM
limit
Address (Hex): 7
Availability: Monitor, Monitor & Control Modes
Values: 0=OFF / 1=ON (returns to 0 after command completes)
Alarm Output Mode
–
type of faults that cause the
controller’s
alarm output relay
to open
Address (Hex): 8
Availability: Monitor, Monitor & Control, Constant Volume, Constant Pressure Modes
Values: 0 = Fan Alarms / 1 = Fan Warnings / 2 = Fan Alarms & Fan Warnings / 3 = Relay Disabled (Default)
Volume/Pressure Alarm
–
triggers an alarm when readings are above the threshold
Address (Hex): 9
Availability: Monitor Only, Monitor & Control, Constant Volume, Constant Pressure Modes
Values: 0=OFF (default) / 1=ON
NOTES: For Constant Volume/Pressure operating modes an alarm will be generated whenever the fan array
reaches 100% speed and is not able to reach the target pressure/volume setpoint.
Volume/Pressure Alarm Threshold
–
related to the volume/pressure alarms (see
above)
Address (Hex): A
Availability: Monitor, Monitor & Control Modes
Values: 0 to 100 (%). Default is 50.
NOTE: For Constant Volume/Pressure operating modes, the value of this register is fixed to 100
External Pressure Sensor Monitoring
–
enables/disables the monitoring of a 0-10V
pressure sensor
Address (Hex): B
Availability: Monitor, Monitor & Control Modes
Values: 0=OFF (default) / 1=ON
Constant System Type
–
sets the system type to volume or pressure
Address (Hex): C
Availability: Monitor, Monitor & Control, Constant Volume, Constant Pressure Modes
Values: 0=Volume (default) / 1=Pressure
Measurement Unit
–
sets the measurement unit for display and/or control
purposes
Address (Hex): D
Availability: Monitor, Monitor & Control, Constant Volume, Constant Pressure Modes
Values: 0 (default) Metric / 1= Imperial (if imperial volume then CFM, if imperial pressure then i.n.w.g)
Sensor Type
–
the type of pressure sensor attached to the controller or the fans
Address (Hex): E
Availability: Monitor, Monitor & Control, Constant Volume, Constant Pressure Modes
Values: 0=50Pa (default) / 1=200Pa / 2=500Pa / 3=1000Pa / 4=2000Pa / 5=3500Pa
