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Operating Guide Control IM/C300–OG_7 Universal Process Controllers C300 and C310...
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Modbus Serial Communications. INSTALLATION SPECIFICATION SHT. Product Identification Full Specification Siting Mounting Electrical Connections Installation Record Part No. IM/C300–INS Part No. SS C300 IM/C310–INS SS C310 OPERATION PROGRAMMING MODBUS (RTU). Setting Up Basic Config. Level Serial Adaptors Displays & Controls Advanced Config.
Is there a signal at the process variable input and/or the control output terminals? C300 C301 C310 tESt tESt tESt Instrument Test identifies the instrument type, C300, C301 or C310 – see Table 2.1 in the Installation Guide. 100. 3 CONFIG Flashing CHECK 200. 5...
3 DISPLAYS & CONTROLS The displays, l.e.d. indicators and operation/programming controls are located on the faceplate on the front of the instrument. 3.1 Displays and LED Indicators – Fig. 3.1 The displays comprise 2 rows of 6 characters. N or n C or c O or o H or h...
3 DISPLAYS & CONTROLS… 3.3 Use of Controls – Fig. 3.2 to 3.6 Page 1 Parameter Value Frame 1 Adjust Page 2 Frame 2 Frame 1 Frame 3 Note. Continued pressure on the Frame 2 Frame 4 switches causes the Frame 3 rate of change of the displayed value to increase.
5 OPERATING LEVEL 5.1 Operating Page Introduction 5.1.1 Set Point Tracking With enabled (in the ), the Local set point value tracks the set point tracking Set Points Page process variable when the controller is in Manual control mode. In this mode of operation the set point limits do not apply.
…5 OPERATING LEVEL 5.2 Operating Page Displays 5.2.1 Time Proportioning and Analog Control Process 100. 3 Variable Control Set Point 110. 5 The set point in use is displayed (Local, Remote or Dual). If the Local or Dual set point is displayed it can be adjusted using the switches, providing Set Point Adjust...
5 OPERATING LEVEL… 5.2.2 Motorized Valve Control Process Variable 100. 3 Control Set Point 110. 5 The set point in use is displayed (Local, Remote or Dual). If the Local or Dual set point is displayed it can be adjusted using the switches, providing Set Point Adjust...
…5 OPERATING LEVEL 5.2.3 Heat/Cool Control Control Set Point 100. 3 The set point in use is displayed (Local, Remote or Dual). 110. 5 If the Local or Dual set point is displayed it can be adjusted using the switches, providing Set Point Adjust –...
5 OPERATING LEVEL… 5.3 Operating Page Messages Message Reason Line Failed – indicates power failure. LINE FAILEd Self-tune Fail – Self-tune procedure has failed. S-tUNE FAIL Self-tune Caution – process complete, but values may not S-tUNE be correct. CAUtN Failed Input – process variable input failure. F-INPt Failed Remote Set Point Input –...
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…5 OPERATING LEVEL …5.3 Operating Page Messages Message Reason High Output Alarm – flashes when a high output alarm HOUt condition is present and unacknowledged. Low Output Alarm – flashes when a low output alarm LOUt condition is present and unacknowledged. Fast Rate Alarm –...
5 OPERATING LEVEL… 5.4 Alarm Acknowledge Page ACKNLG Page Header – Acknowledge Alarms ALArMS A-HPrC Upper Display: shows the alarm identity and type when 100.5 an alarm condition is present. For example the displays for alarm A are: – high process A–H.
Software version VEr 1 The Upper display indicates the EPROM series. 2201 is displayed for the standard C300 EPROM, 2202 for the standard C301 EPROM, 2203 for the standard C302 EPROM and 2101 for the standard C310 EPROM. The lower display indicates the version number.
6 TUNING LEVEL 6.1 Introduction to Self-tuning Information. • On demand user-activated tuning. Two types of self-tuning – initial and when close to • 'Start-up' 'Set Point' Tuning for P, PI or PID control can be selected. • Tuning for wave damped or minimum overshoot (start-up tuning only) can be •...
…6 TUNING LEVEL …6.1 Introduction to Self-tuning Self-tune High Limit Signal Noise Hysteresis Hysteresis Value Band Values at Start of Self-tune Low Limit Execution Controller Output Output Step Time Information. 'At Set Point' self-tuning automatically calculates the P.I.D. terms based on the process reaction during a self-tuning cycle.
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6 TUNING LEVEL… …6.2 Self-tuning Page St-tYP Self tune Type At SPt Select the Self-tune type required: StrtuP (At Set Point) use when the process is AtSPt close to the required set point. (Start-up) use for self-tune from initial start- StrtUP up, or for self-tune when there is a large change in set point value.
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…6 TUNING LEVEL …6.2 Self-tuning Page AtSPt St–HI Self-tune High Limit The process variable must be between the high and low limits during the self-tuning process. If the process value exceeds one of these, the self-tuning process is shut off automatically by reverting to the Manual control mode and returning the controller output to the value set when the self-tuning was carried out.
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6 TUNING LEVEL… …6.2 Self-tuning Page AdU.P Advisory Proportional Band – – Advisory value displayed (cannot be changed). • AdU.I Advisory Integral Action Time – – • Advisory value displayed (cannot be changed). AdU.d Advisory Derivative Action Time – – Advisory value displayed (cannot be changed).
…6 TUNING LEVEL 6.3 Self-tune Diagnostic Messages Message Explanation Action Flashing The self-tune process has B e c a u s e o f t h e p r o c e s s S–tUNE Pb–INt with selected a proportional band or characteristics, re-trying the self- integral action time above the tuning process is unlikley to...
7 CONTROL LEVEL 7.1 Introduction to Standard Control Information. • On/Off Control – use for applications where precise control is not required, or where frequent switching of a contactor using time proportioning control causes premature wear. • Proportional Control – use where: cycling action of on/off control is unacceptable, load changes are small or infrequent, offset can be tolerated or eliminated using manual reset.
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…7 CONTROL LEVEL …7.1 Introduction to Standard Control Effect Of Response Settings Response Contributions Too High Too Low Hysteresis too high Process swings Helps to prevent Output switches On/Off Hysteresis too far above rapid switching of too rapidly and below set Hysteresis too Low output point...
7 CONTROL LEVEL… 7.2 Control Page ContrL Page Header – Control Page. PAGE is selected, refer to Section 7.3. Heat/Cool Control Time Proportioning CYCt Cycle Time Other This frame appears only if the function Time Proportioning Control Types is selected in the .
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…7 CONTROL LEVEL …7.2 Control Page t–untS Time Units SECS Time units for the integral and derivative action times (see below) can be set to minutes or seconds MINS SECS INtGrL Integral Action Time Set the required time between 1 and 7200 in 1 second increments (0.1 and 120 minutes in 0.1 minute increments).
…7 CONTROL LEVEL 7.3.1 Control Page (Heat/Cool Control) The following parameters appear only if Heat/Cool is selected at frame in the Control Mode Up Control Page ContrL Page Header – Control Page (Heat/Cool Control). PAGE Time Proportioning CYCLE h Cycle Time (Heat) This frame appears only if Current Time Proportioning Control...
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7 CONTROL LEVEL… …7.3.1 Control Page (Heat/Cool Control) INtGrL c Integral Action Time (Cool) Set the required time between 1 and 7200 in 1 second increments (0.1 and 120 minutes in 0.1 minute Int. Action Time Off increments). is displayed in place of 7201 (120.1). Integral Action Time...
…7 CONTROL LEVEL 7.3.2 Calculating the Crossover Value – Fig 7.3 The crossover value is calculated from the expression: Crossover Value = Gh/Gc + 1 Where Gh/Gc is the ratio of the two output driver gains. The most common method for determining the Gh/Gc term is by using 'nameplate' values from the heat/cool device(s).
8 PROFILE OPERATION 8.1 Profile Operating Page This only appears if the frame is set to in the – see Profile Enable Profile Program Page Section 4.1 in the Programming Guide. Parameters displayed in this page cannot be modified. Profile Status P–StAt The current status of the selected profile is displayed: rAMP...
…8 PROFILE OPERATION 8.2 Profile States Page is only present if the frame is set to in the Profile States Page Profile Enable Profile – see Section 4.1 in the Programming Guide. Program Page PrOFLE Page Header – Profile States. StAtES Advance to the next parameter.
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8 PROFILE OPERATION… …8.2 Profile States Page From top of page 30 HOLd Program Hold H–bACK The program may be put on hold (suspended) by any of OPErAt three conditions. The lower display shows the type of hold MN–HLd condition or –...
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…8 PROFILE OPERATION …8.2 Profile States Page SKIP Skip Segment This frame is omitted if a logic input has been assigned to the Skip Current Segment function, i.e. has been P-SKIP selected, see Section 4.10 in the Programming Guide. A segment may be skipped by pressing the switch.
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