Manuale d’uso / di manutenzione del prodotto CN9400 del fabbricante Omega Engineering
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http://www .omega.com e-mail: info@omega.com ® U ser ’ s Guide CN9400 Dual Display Autotune T emperature Contr oller omega.com TM OMEGA ® OMEGAnet SM On-Line Service Internet e-mail http://www .omega.com info@omega.com It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply .
Safety Information SAFETY INFORMA TION INST ALLA TION Designed for use: UL873 - only in products where the acceptability is determined by Underwriters Laboratories Inc. EN61010-1 / CSA 22.2 No 1010.1 - 92 T o offer a minimum of Basic Insulation only .
Safety Information SAFETY INFORMA TION INST ALLA TION Designed for use: UL873 - only in products where the acceptability is determined by Underwriters Laboratories Inc. EN61010-1 / CSA 22.2 No 1010.1 - 92 T o offer a minimum of Basic Insulation only .
FUNCTIONS MENU Functions Menu INSTRUMENT ADJUSTMENTS T o enter or exit program mode : Press ▲ ▼ together for 3 seconds T o scroll through functions : Press ▲ or ▼ T o change levels or options .
2 Select unit. Press and hold ✱ and use the ▲ or ▼ buttons to scroll through the unit selection list until the correct unit is displayed. Release the buttons.
Introduction INTRODUCTION The CN9400 is a 1/16 DIN dual display , dual output miniature controller with PID control strategy . Control can be optimised with a single shot autotune either on initial warm-up or at setpoint. The second setpoint can be configured in a variety of alarm modes or PID Heat-Cool strategy .
Overview OVER VIEW INST ALLA TION The Model CN9400 controller is designed to be mounted in a 1/16 DIN panel cut-out. See the INST ALLA TION section. SET -UP After installation the controller requires .
Overview CYCLE-TIME The choice of cycle-time is influenced by the external switching device or load. e.g. contactor , SSR, Valve. A setting that is too long for the process will cause oscillation and a setting that is too short will cause unnecessary wear to an electro-mechanical switching device.
Set-up SET -UP 5 This section details the four step initial configuration that enables control with factory PID settings to start, once the setpoint has been entered.
Menu Navigation MENU NA VIGA TION T o change an option value or setting Press and hold the ✱ button, then press ▲ to increase or ▼ to decrease the value or select the next option. Note: Check the new option value before moving to another function or exiting program mode.
Autotune AUTOTUNE Select the most appropriate method of Autotune , T une or T une at Setpoint, to suit the application. Note: The proportional cycle-time can be pre-selected before starting Autotune, see PROPORTIONAL CYCLE-TIME . The TUNE program should be run with the load cool.
Autotune The TUNE A T SETPOINT program will now start. The upper display will alternate tune and the process temperature. The lower display will read the setpoint value.
Proportional cycle-time The choice of cycle-time is influenced by the external switching device or load. eg. contactor , SSR, valve. A setting that is too long for the process will cause oscillation and a setting that is too short will cause unnecessary wear to an electro-mechanical switching device.
If this cycle-time is suitable press and hold both ▲ and ▼ buttons for 3 seconds to enter it into the controllers memory . If the calculated cycle-time is not compatible with the switching device press and hold the ✱ button then press and hold ▲ or ▼ until a more suitable cycle-time is displayed.
Programmer RAMP-SOAK This feature enables the controller to ramp up or down from current temperature to a target setpoint at a pre-determined rate. It then controls at the target setpoint for an adjustable soak period before switching off the heat output.
The second setpoint SP2 can be used to trigger an alarm or as a proportional control output. TO CONFIGURE SP2 AS AN ALARM Enter program mode. Select level 2 then followed by the required option below: dV .hi sets off alarm signal when temperature rises above a pre-set temperature above the setpoint.
Second Setpoint SUBSIDIARY SP2 MODE : Latch/sequence or non-linear cool. Latch alarm LtCh When activated, the alarm latches until manually reset, even though the alarm condition may have disappeared. Sequence alarm hoLd When hoLd is selected, in any alarm mode, it prevents an alarm signal on power -up.
Error Messages ERROR MESSAGES T emp Setpoint Cycle 75% SP Start TUNE TUNE Tuning DAC PID New PID values entered Time (100% output) oS 1 oS 2 Ct A Ct b Ct 3 Ct 4 uS Ct 1 Ct 2 SENSOR F AUL T Upper display alternates: inPt and F AiL Indicates: thermocouple burnout RTD/Pt100 open or short circuit or negative over -range.
Improving Control Accuracy IMPROVING CONTROL ACCURACY T emp Maximum Time Variance VA r ° hi ° ± 0.1 ° Minimum Lo ° The following functions are to assist engineers with machine development, commissioning and troubleshooting. READ SP1 OUTPUT PERCENT AGE POWER Poor control may be due to incorrectly sized heaters.
Function List FUNCTION LIST (Levels 1 to 4) BAND T oo narrow (oscillates) increase T oo wide (slow warm up and response) decrease BAND Note: A Functions Menu is shown on the cover fold-out A3 LEVEL 1 F unction Options [Factory settings] shown in brackets SELECT AUTOTUNE [oFF] on ParK At.
Function List F unction Options [Factory settings] shown in brackets A - - on.oF 0.1 - 81 sec [20] SP1 proportional cycle-time (see pages 9/10) Determines the cycle rate of the output device for proportional control. Select on.oF for ON/OFF mode. [0] to * °C/°F SP1 offset/manual reset * ±50% bAnd .
Function List LEVEL 2 F unction Options [Factory settings] shown in brackets MANUAL CONTROL MODES 0 to 100 % ‘read only’ Read SP1 output percentage power [oFF] 1 to 100 % (not in ON/OFF) SP1 manual percentage power control For manual control should a sensor fail.
Function List Sensor burn-out/break protection Caution: Settings affect fail safe state. SP1 SP2 [uP.SC] Upscale Upscale dn.SC Downscale Downscale 1u.2d Upscale Downscale 1d.2u Downscale Upscale Select output modes: Direct/Reverse Caution: Settings affect fail safe state.
Function List F unction Options [Factory settings] shown in brackets Select SP1/2 LED indicator modes SP1 SP2 [1n.2n] Normal Normal 1i.2n Invert Normal 1n.2i Normal Invert 1i.2i Invert Invert [0.0] to ± 25% sensor maximum Sensor span adjust For recalibrating to a remote standard e.
Function List LEVEL 4 Access to level 4 is gained through in level 3. Press and hold ▲ and ▼ for 10 seconds. Enter level 4 at Lock , release ▲ and ▼ together . Display reads Program security using Lock Select from three Lock options: Press and hold ✱ , press ▲ to index.
F ACTORY SET OUTPUT OPTIONS 22 DUAL RELA Y OR DUAL SSd OUTPUT MODELS The table below details the factory set output options. rL Y2 is a 1A electromechanical relay , and SSd1/SSd2 is an identical second SSR drive output. QUICK ST ART (page 1a) or SET -UP (page 5) follow steps 1 and 2 ignore step 3 and proceed straight to step 4.
Advanced Settings Before embarking on the Advanced Settings, please familiarise yourself with the basic operation of the controller as described in this manual.
Advanced Settings Heat Cool Strategy Configuration (continued) If no improvement, return to the original value and; In level 1 halve the value of If the process hunts between heating and cooling, a deadband setting may be needed. Enter a small value, eg.
Advanced Settings 2.5 Therefore adjust SP An to (-) 18 to correct error . Notes: (1) After making the adjustment the reading will immediately change. Allow time for the temperature to stabilise at T 2 before making any further adjustment. At this point, a ZEro adjustment may be needed, refer to step 1 above.
Advanced Settings 3 Allocate the output devices at function as described in SET-UP , enter the configuration into the memory and proceed as follows: Calculate the values for the controller settings fo.
Mechanical Installation The CN9400 Controller is designed to be mounted in a 1/16 DIN panel cutout. The unit is sleeve mounted with the front bezel assembly rated NEMA4/IP66 provided that: ● the panel is smooth and the panel cutout is accurate; ● the mounting instructions are carefully followed.
Mechanical Installation MINIMUM SP ACING MOUNTING T o mount a Controller proceed as follows: 1 Check that the controller is correctly orientated and then slide the unit into the cutout. 2 Slide the panel clamp over the controller sleeve pressing it firmly against the panel until the controller is held firmly .
Electrical Installation OUTPUT DEVICES T wo of the following output devices are fitted to the controllers, depending on the model. 1 Solid state relay drive (SSd/SSd1/SSd2) 5Vdc +0/-15%, 15mA non isolating T o switch a remote SSR (or logic) 2 Miniature power relay (rL Y/rLY1) 2A/250V resistive, Form A/SPST contacts.
Electrical Installation 30 ELECTRICAL INST ALLA TION (continued) EN61010 - /CSA 22.2 No 1010.1 92 Compliance shall not be impaired when fitted to the final installation.
Sensor Selection Option/Sensor type Sensor range Linearity Thermocouples tc b B 0 to 1800 °C 32 to 3272 F Pt-30%Rh/Pt-6%Rh 2.0 * tc E E 0 to 600 °C 32 to 1112 F Chromel/Con 0.5 tc J J 0 to 800 °C 32 to 1472 F Iron/Constantan 0.5 tc K K -50 to 1200 °C -58 to 2192 F Chromel/Alumel 0.
Specification Thermocouple 9 types Standards: IPTS/68/DIN 43710 CJC rejection: 20:1 (0.05°/°C) typical External resistance: 100 Ω maximum Resistance thermometer RTD-2/Pt100 2 wire Standards: DIN 43760 (100 Ω 0°C/138.5 Ω 100°C Pt) Bulb current: 0.
FOR WARRANTY RETURNS, please have the following information available BEFORE contacting OMEGA: 1. P .O. number under which the product was PURCHASED, 2. Model and serial number of the product under warranty , and 3. Repair instructions and/or specific problems relative to the product.
http://www .omega.com e-mail: info@omega.com ® U ser ’ s Guide CN9400 Dual Display Autotune T emperature Contr oller omega.com TM OMEGA ® OMEGAnet SM On-Line Service Internet e-mail http://www .omega.com info@omega.com It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply .
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Omega Engineering CN9400 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Omega Engineering CN9400 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Omega Engineering CN9400 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Omega Engineering CN9400 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Omega Engineering CN9400, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Omega Engineering CN9400.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Omega Engineering CN9400. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Omega Engineering CN9400 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
