valutazioni - 3, GPA: 3.7
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Facilità d'uso
It is recommended that you put the controller in the Standby Mode for any configuration change other than Setpoints & Alarms. Figure 3.9 Flow Chart for Output 1 36 ENTER OUTPUT 1 MENU: Press a 1) Press a, if necessary, until CNFG prompt appears. Press d 2) Display advances to INPT Input Menu. Press a 3) Press a, if necessary, until Display advances to OUT1 Output 1 Menu. Press d 4) Display advances to SELF Self Submenu. SELF SUBMENU: The Self Option allows the output of the instrument to be controlled manually from the front panel. Press d 5) Display flashes the current setting of Self, ENBL Enabled or DSBL Disabled. Press b 6) Press the b button to select between Enable and Disable. Press d 7) If Self ENBL Enabled was selected, display shows STRD stored message momentarily and then advances to the next menu (Output 1 setting is completed). The output is now under the direct control of the operator and can be adjusted in the Run Mode (M00.0 to M99.9), by pressing the b and c buttons, where M calls for the Manual (Self) Control. For example, setting of M50.0 of an Analog Output of 0 to 10 Vdc would produce roughly 5 Vdc at the output. 8) If Self DSBL Disabled was selected, display shows STRD stored message momentarily and then advances to oPLO Minimum/Percent Low Submenu of Output 1 Menu. There is a shorter way to Enable or Disable Self Mode. From a Run Mode, press d and then press a. Self Mode is Enabled now. Press b or c to display MXX.X. To disable Self, press d and then press a. Display goes to the Run Mode. Self Mode is Disabled now. MINIMUM/PERCENT LOW SUBMENU: Specify in percent, the minimum value (0000) for control output. If the output is analog proportional (Current or Voltage), then the minimum voltage or current, in percent, is specified. If the output is time proportional (Relay, SSR or Pulse), then the minimum duty-cycle, in percent, is specified. Press d 9) Display flashes 1st digit of previous “Percent Low” setting. Press b & c 10) Use b and c buttons to enter a new value for “Percent Low”. Press d 11) Display shows STRD stored message momentarily and then advances to oPHI Maximum/Percent High Submenu. 37 MAXIMUM/PERCENT HIGH SUBMENU: Specify in percent, the maximum value (99) for control output. If the output is analog proportional (Current or Voltage), then the maximum voltage or current, in percent, is specified. If the output is time proportional (Relay, SSR, or Pulse), then the maximum duty-cycle, in percent, is specified. Press d 12) Display flashes 1st digit of previous “Percent High” setting. Press b & c 13) Use b and c buttons to enter a new value for “Percent High”. Press d 14) Display shows STRD stored message momentarily and then advances to CTRL Control Type Submenu. Example: On an Analog Output of 0~10 Vdc, a setting of %LO = 10 and %HI = 90, cause the minimum on the control output to be 1 V and the maximum on the control output to be 9 V. The same setting on a time proportional output, will cause 10% duty cycle for the minimum control output and 90% duty cycle for maximum control output. To disable %LO/HI, set LO to 00 and HI to 99. If %LO/HI is at other values than the default (%LO = 00, %HI = 99), SOAK is disabled. *CONTROL TYPE OUTPUT: (Relay, SSR, Pulse or Analog) Press d 15) Display flashes ON.OF On/Off or PID Proportional, Integral, Derivative. Press b 16) Scroll through the available selections: “ON/OFF” or “PID”. Press d 17) Display flashes STRD stored message momentarily and then advances to AcTN only, if it was changed, otherwise press a to advance to AcTN Action Type Submenu. The ON/OFF control is a coarse way of controlling the process. The “Dead Band” improves the cycling associated with the On/Off control. The PID control is best for processes where the Setpoint is continuously changing and/or a tight control of the process variable is required. PID control requires tuning and adjustment of the "Proportional", "Integral or Reset" and "Derivative or Rate" terms by a trial-and-error method. The instrument provides an "Auto Tuning" feature making the tuning process automatic, possibly optimum. * If Analog Output (Current/Voltage) is your control Output 1, this menu i.e. CTRL type will not appear, instead 4-20 Current will be displayed. Select ENBL for a 4-20 mA current (2-10 V Voltage) outputs or DSBL for a 0-20 mA current (0-10 V Voltage) outputs. If 4-20 mA is enabled, %HI/LO setting will have no effect. Both Current and Voltage control outputs are active simultaneously. 38 ACTION TYPE SUBMENU: The error that results from the measurement of the Process Variable may be positive or negative since it may be greater or smaller than the Setpoint. If a positive error should cause the instrument output to increase (i.e. cooling), it would be called Direct Acting. If a negative error should cause the output to increase (i.e. heating), it would be called Reverse Acting. Press d 18) Display flashes DRcT Direct or RVRS Reverse. Press b 19) Scroll through the available selecti...
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