S-076N 3BHB009884R0021

Brand:ABB

Type:S-076N 3BHB009884R0021

Origin: the Swiss

Warranty: 365 days

Colour: new/used

Shipping method: Courier delivery

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To enter a specific setpoint from the 505E keypad, press the AUX key to view the Auxiliary control screen, press the ENTER key, enter the setpoint level desired, then press the ENTER key again. If a valid number was entered, equal-to or between the min and max setpoint settings, the setting will be accepted and the Auxiliary setpoint will ramp to the “entered” setpoint level. If an invalid number is “entered”, the setting will not be accepted and the 505E’s screen will momentarily display a value out-of-range message. When a valid setpoint value is entered, the setpoint will ramp at the “Aux Setpt Rate” setting to the newly entered setpoint value. This ‘Entered’ rate is tunable through the Service mode. Refer to Volume 2 of this manual for further information on Service mode and online tunables. All pertinent auxiliary control parameters are available through the Modbus links. See Chapter 6 for a complete listing of Modbus parameters.

Remote Auxiliary Setpoint The Auxiliary setpoint can be positioned through an analog signal. This allows the Auxiliary setpoint to be positioned remotely by a process control or distributed plant control system. The Remote Auxiliary Setpoint’s range is determined by the analog input’s 4 mA and 20 mA settings. The Remote Auxiliary Setpoint range is tunable in the Service mode, but cannot be set outside of the min and max Auxiliary Setpoint settings. When enabled, the Remote Setpoint may not match the Auxiliary setpoint. In this case, the Auxiliary setpoint will ramp to the Remote Setpoint’s value at the programmed ‘Aux Setpoint Rate’ setting (as defaulted in the Service mode). Once in control, the fastest the Remote Setpoint will adjust the Auxiliary setpoint is limited to the programmed ‘Rmt Aux Setpt Max Rate’ setting. If the ‘Rmt Aux Setpt Max Rate’ were set at 10 and the Remote Auxiliary Setpoint analog input instantly moved from 0 units to 1000 units, the Auxiliary setpoint will move to 1000 units at 10 units/sec. If the milliamp signal to the Remote Setpoint input is out of range (below 2 mA or above 22 mA) an alarm will occur and the Remote Setpoint function will be inhibited until the input signal is corrected and the alarm is cleared. Depending on configuration and system conditions, the Remote Auxiliary Setpoint may be in one of the following states (505E front panel screen messages): • Disabled—The Remote Setpoint function is disabled and will have no effect on the Aux setpoint. • Enabled—The Remote Setpoint has been enabled, but permissives are not met. • Active—The Remote Setpoint has been enabled, permissives are met, but Auxiliary PID is not in control of the LSS bus. • In Control—The Remote Setpoint is in control of the Auxiliary setpoint, and the Auxiliary PID is in control of the LSS bus. • Inhibited—Remote Setpoint cannot be enabled; Remote Setpoint input signal is failed, Auxiliary control is Inhibited, or Remote Auxiliary Setpoint is not programmed.