ebm-papst CN1116, Operating And Maintenance Instructions Manual

Page: 34 / 47

Operating and Maintenance Instructions
210-OMI14229-Iss8.1 CN1116 Full OMI Page 34 of 47
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Operating Mode – sets the c ontroller’s operating mode
Address (Hex): 0
Availability: All operating modes
Values: 0=Monitor (default) / 1=Monitor & Control / 2=Constant Volume/Constant Pressure / 3=Transparent Mode
Save Modbus Control Speed Setpoint – enables the latest change at the fan array
set speed holding register to be saved in the controller’s non -volatile memory
Address (Hex): 1
Availability: Monitor & Control Mode
Values: 0=OFF (default) / 1=ON
CAUTION: The “ Save Modbus Control Speed Setpoint ” register must not be activated if the “ Fan Array Set
Speed ” register is repeatedly write accessed at frequent intervals:
If this instruction is not observed, there is a risk the controller’s memory will be permanently destroyed .
If this function is activated, the maximum number of times “Fan Array Set Speed” can be write accessed
over the entire service life of the controller is 10,000.
Controller’s 0-10V Input Control Mode – allows the fan array to be controlled via a
0-10V signal fed to the c ontroller’s 0-10V input
Address (Hex): 2
Availability: Monitor & Control Mode
Values: 0=OFF / 1=ON (default)
Keypad Control Mode – allows the fan array to be speed controlled using the
Controller’s keypad
Address (Hex): 3
Availability: Monitor & Control Mode
Values: 0=OFF (default) / 1=ON
Fan Array Set Speed Register – sets the speed of the fan array
Address (Hex): 4
Availability: Monitor & Control Mode
Values: 0 to 100 (%)
NOTE: The value changed here is not saved in non- volatile memory unless “Save Modbus Control Speed
Setpoint ” is set to 1
Menu Lock – Enables menu lock from fan status screen
Address (Hex): 5
Availability: All Operating Modes
Values: 0=OFF (default) / 1=ON
Fan Array Custom RPM Limit – sets the RPM limit of all fans to this value
Address (Hex): 6
Availability: Monitor, Monitor & Control Modes
Values: 0 to Max RPM (see fan datasheet)
– values set too high will be capped by the fan’s maximum permissible
RPM limit