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PPI neuro 202L Plus User Manual

Single loop process controller
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Single Loop Process Controller
neuro 202L Plus
Process Precision Instruments
Vasai Road (E), Dist. Palghar - 401210,
Single Loop Uni-Directional/Bi-Directional Control
Maharashtra, India
Built-in 16 Segment Ramp/Soak Profile
Optional Remote/Auxiliary Setpoint Input
www.ppiindia.net
Alarms, Retransmission & RS485 Serial Outputs
User Manual
PPI \ User Manual

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  • Page 1 Single Loop Process Controller neuro 202L Plus Process Precision Instruments Vasai Road (E), Dist. Palghar - 401210, Single Loop Uni-Directional/Bi-Directional Control Maharashtra, India Built-in 16 Segment Ramp/Soak Profile Optional Remote/Auxiliary Setpoint Input www.ppiindia.net Alarms, Retransmission & RS485 Serial Outputs User Manual...

  • Page 2: Table Of Contents

    SET-UP MODE ACCESS AND OPERATION CONTROL PARAMETERS ALARM PARAMETERS CONFIGURATION PARAMETERS SUPERVISORY PARAMETERS PROFILE PARAMETERS OP2 & OP3 FUNCTION PARAMETERS 10. REMOTE SETPOINT PARAMETERS 11. MECHANICAL INSTALLATION 12. ELECTRICAL CONNECTIONS APPENDIX-A : DC LINEAR SIGNAL INTERFACE PPI \ User Manual...

  • Page 3: Front Panel Layout

    Single Loop Process Controller Section 1 FRONT PANEL LAYOUT The controller front panel comprises of Digital Readouts, LED Indicators and Push Button Keys as shown in Figure 1.1 below. Figure 1.1 neuro 202L Plus Upper Readout Lower Readout Output-2 Status RS485 Comm Status...
  • Page 4 Press to increase the parameter value. Pressing once increases the value by one count; keeping pressed speeds up the change. Press to store the set parameter value and to scroll to the next ENTER parameter on the PAGE. PPI \ User Manual...

  • Page 5: Main Display Mode

    The Lower Readout also facilitates viewing the information about the current profile segment viz.; the Segment Number, Segment Type (ramp / soak) and the Target Set-point (if current segment is ramp) or the Balance Time (if current segment is soak). PPI \ User Manual...
  • Page 6 The PV Error Type is flashed on the Upper Readout. For different Error Types and the Causes, refer Table 2.1 below. Table 2.1 Message Error Type Cause Over-range PV above Max. Range Under-range PV below Min. Range Sensor Open Thermocouple / RTD broken PPI \ User Manual...

  • Page 7: Manual Mode Operation

    4. If the power fails while the Manual Control Mode is active; upon resumption of power the controller continues to remain in Manual control mode with the last user set power. STANDBY MODE This mode allows the operator to put the controller in ‘indication-only’ mode wherein all the output control signals as well as PPI \ User Manual...

  • Page 8: Control Setpoint

    Min. to Max. Range ALARM-1 SETPOINT specified for the The High or Low limit for Alarm-1 if the selected alarm type is selected Input Type Process High or Process Low. (Default : Min or Max Range) PPI \ User Manual...
  • Page 9 ALARM-2 WINDOW BAND Same as that described for Alarm-1 above but applied to Alarm-2. AUXILIARY CONTROL SETPOINT Setpoint Low Limit to Setpoint High Limit (Available for Auxiliary Set-point version) (Default : -1999) The auxiliary setpoint value. PPI \ User Manual...

  • Page 10: Set-Up Mode Access And Operation

    2. To exit the set-up mode and return to the MAIN Display Mode, press and release PAGE key. 3. If no key is pressed for approximately 30 seconds, the set-up mode times out and reverts to the MAIN Display Mode. PPI \ User Manual...
  • Page 11 Locking Code Mode Mode Press PAGE Use UP/DOWN Press ENTER key key to enter key to set the to Lock & Return to Set-up Mode ‘Locking Code’ Main Mode UnLocking Repeat the Locking procedure twice for unlocking. PPI \ User Manual...

  • Page 12: Control Parameters

    Output-1. Defined in same units and resolution as that for PV. PULSE TIME Pulse ON Time (Available for Pulsed On-Off Control only) to 120.0 Seconds Sets the total ‘On + Off’ pulse time in seconds for Output-1 Relay / (Default : 2.0 sec.) SSR output. PPI \ User Manual...
  • Page 13 Sets the minimum % output power limit for Output-2. COOL POWER HIGH Cool Power Low to 100 (Available for PID Control with bi-directional, that is, Heat- (Default : 100) Cool mode) Sets the maximum % output power limit for Output-2. PPI \ User Manual...

  • Page 14: Alarm Parameters

    1 to 999 or 0.1 to 999.9 switching states. Units and resolution are same as that for PV. (Default : 2) ALARM-1 INHIBIT Setting to ‘Yes’ suppresses Alarm-1 activation upon power-up or process start-up. (Default : No) PPI \ User Manual...
  • Page 15 (Available if Output-3 function is recorder) Selected Input Type Sets the maximum value (PV or SP) that shall correspond to the (Default : 1376) maximum recorder output signal level (20 mA or 5 V or 10 V). PPI \ User Manual...

  • Page 16: Configuration Parameters

    0.000 to Signal High 0 to 1.25 V 0.000 0.000 to Signal High 0 to 5 V 0.000 0.00 to Signal High 0 to 10 V 0.00 1 to 5 V 1.000 to Signal High 1.000 PPI \ User Manual...
  • Page 17 Set the time constant, in seconds, for the low-pass digital filter (in steps of 0.5 Seconds) applied to the measured PV. The filter helps smoothing/averaging (Default : 2.0 sec.) the signal input and removing the undesired noise. PPI \ User Manual...
  • Page 18 0 to 80mV DC voltage Reserved User settable 1 / 0.1 / 0.01/ -1999 to +9999 units 0.001 units 0 to 1.25V DC voltage 0 to 5.0V DC voltage 0 to 10.0V DC voltage 1 to 5.0V DC voltage PPI \ User Manual...

  • Page 19: Supervisory Parameters

    Supervisory permission for Alarm setpoint adjustments on Enable Operator Page. Set to ‘Enable’ for permission. (Default : Disable) Disable STANDBY MODE Enable Supervisory control over availability of Standby (entry / exit) command on Operator Page. ‘Enable’ for availability. (Default : Disable) PPI \ User Manual...

  • Page 20: Communication Parity

    (Default : Even) COMMUNICATION WRITE ENABLE Setting to ‘No’ disallows the host to set or modify any parameter value. The host, however, can read the values. (Default : No) PPI \ User Manual...

  • Page 21: Profile Parameters

    Selecting Abort terminates a running profile in case of power failure. Abort Continue Selecting Continue resumes : (a) The ramp segment execution with the profile setpoint (Default : Continue) prevailing at the time of power failure. (b) The soak segment execution for the balance time. PPI \ User Manual...
  • Page 22 PAGE-14. That is, the changes made to the parameter values become applicable for the current execution of the segment only. This allows adjusting the profile, if required, in accordance to some unexpected process behavio r. Refer Table 8. . PPI \ User Manual...
  • Page 23 0 from the altered time interval value. SEGMENT HOLDBACK TYPE None The modified Holdback Band Type is applied immediately on the current segment. Down Both PPI \ User Manual...
  • Page 24 1 to 999 or 0.1 to 999.9 current segment. PROFILE REPEAT COUNTER This parameter shows the remaining profile cycles. If the value is 1 to 9999 altered, the repeat counter starts counting down from the new set value. PPI \ User Manual...

  • Page 25: Op2 & Op3 Function Parameters

    2 OFF while profile is in progress and turns ON at the end of profile. (Default : ON) Selecting ‘OFF’ keeps the O utput- 2 ON while profile is in progress and turns OFF at the end of profile. PPI \ User Manual...
  • Page 26 Definition same as Output-2 Event Time Units. (Default : Seconds) OUTPUT-3 EVENT TIME (Available if Output-3 function is End of Profile & Event Status is 0 to 9999 set to ‘ON’) (Default : 0) Definition same as Output-2 Event Time. PPI \ User Manual...
  • Page 27 RECORDER OUTPUT TYPE 0 to 20mA (Available if Output-3 function is Recorder) 4 to 20mA 0 to 5V Select type for Output-3 in accordance with the hardware module fitted. 0 to 10V (Default : 0 to 20mA) PPI \ User Manual...

  • Page 28: Remote Setpoint Parameters

    Remote Setpoint Range Low to Max. Range for the Sets the Setpoint Value corresponding to maximum input signal selected Input Type value (20mA or 5/10V). The resolution and units are same as that (Default : 1376) for Process Value. PPI \ User Manual...

  • Page 29: Outer Dimensions

    Figure 11.1 84mm (3.307in) 96 mm (3.78 in) neuro 202L Plus 7mm (0.276in) Front View Side View PANEL CUTOUT AND RECOMMENDED MINIMUM SPACING The Figure 11.2 shows the panel cutout requirements for a single controller and also the minimum spacing recommended if several controllers are required to be mounted on a single panel.

  • Page 30: Panel Mounting

    5. Fix the Mounting Clamps (one after the other) such that the metallic projection fits in the square hole provided on the top and bottom sides of the enclosure. Tighten the clamp screw until the clamps firmly secures against the panel wall. Figure11.3 Bezel Controller Clamps Mounting Panel with Square Cutout PPI \ User Manual...

  • Page 31: Connection Diagram

    The Connection Diagram is a generic one; the connections shown for optional modules are applicable only if the modules are fitted. The rear panel electrical wiring connection diagrams are shown in Figure12.1 below. Figure 12.1 neuro 202L Plus PV INPUT REMOTE SETPOINT...
  • Page 32 The controller accepts DC Voltage (0~5/10 V) or DC Current (0/4~20 mA) as signal input for Remote Setpoint. Refer Figure 12.3 below for connections. The details are same as that described for PV Input above. Figure 12.3 mA / V Input PPI \ User Manual...
  • Page 33 Auxiliary SP Version Remote SP Version Auxiliary Main Remote Main CLOSE OPEN CLOSE OPEN Figure 12.4 (a) Figure 12.4 (b) Ramp/Soak Profile Version OPEN to CLOSE transition acts as a ‘Profile Start’ Command Figure 12.4 (c) PPI \ User Manual...
  • Page 34 Thus output-2 & output-3 are factory configured for either Relay / SSR or DC Linear Voltage or DC Linear Current. The connection descriptions are the same as those described for Output-1. Refer Figure 12.6(a), 12.6(b) & 12.6(c) Figure 12.6(a) Figure 12.6(b) Figure 12.6(c) Relay Output SSR Output mA/V Output OUTPUT-2 OUTPUT-2 OUTPUT-2 OUTPUT-3 OUTPUT-3 OUTPUT-3 PPI \ User Manual...
  • Page 35 Neutral (Return) supply line to terminal 2 as shown in Figure 12.8 below. The controller is not provided with fuse and power switch. If necessary, mount them separately. Use a time lag fuse rated 1A @ 240 VAC. Figure 12.8 2 Pole Power Supply Isolating Switch Terminal Fuse Line Neutral PPI \ User Manual...

  • Page 36: Appendix-A : Dc Linear Signal Interface

    (mV/V/mA) and range. Most PPI instruments, thus, provide programmable Signal Type and Range to facilitate interface with a variety of transmitters. A few industry standard signal types and ranges offered by the PPI instruments are: 0-50mV, 0-200mV, 0-5 V, 1-5 V, 0-10V, 0-20 mA, 4-20 mA, etc.
  • Page 37 : 0-20 mA Signal Low : 0.00 mA Signal High : 20.00 mA PV Resolution : 0.1 X (mA) Range Low : -50.0 20.00 Signal High Range High : 250.0 Range Low -50.0 0.00 Signal Low PPI \ User Manual...
  • Page 38 Single Loop Process Controller ProcessPrecisionInstruments (AnISO9001:2008Company) 101,DiamondIndustrialEstate,Navghar,VasaiRoad(E),Dist.Palghar-401210,Maharashtra,India Sales:8208199048/8208141446Support:07498799226/08767395333 sales@ppiindia.net www.ppiindia.net Feb 2025 PPI \ User Manual...

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