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Chromalox ETR-3400 Installation & Operation Manual

1/32 din automatic tuning smarter logic temperature controller
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Installation & Operation Manual
3400 1/32 DIN
Automatic Tuning Smarter
Logic Temperature Controller
PK545
0037-75576
April 2018
i

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Summary of Contents for Chromalox ETR-3400

  • Page 1 Installation & Operation Manual 3400 1/32 DIN Automatic Tuning Smarter Logic Temperature Controller PK545 0037-75576 April 2018...
  • Page 2 Warranty and Returns Statement Limitations Chromalox shall not be liable for any incidental damag- These products are sold by Chromalox under the war- es, consequential damages, special damages, or any ranties set forth in the following paragraphs. Such war-...

  • Page 3: Table Of Contents

    Table of Contents Contents Page Number Safety & Warranty ..............................ii Chapter 1 Overview ..............................1 1-1 Features ............................... 1 1-2 Ordering Code ............................. 3 1-3 ProgrammingPort andDIP Switch ....................... 4 1-4 Keys and Displays ............................5 1-5 Menu Overview ............................7 1-6 System Modes .............................
  • Page 4 Contents Page Number 3-24 Display Mode ............................55 3-25 Heater Current Monitoring ........................56 3-26 Reload Default Values ..........................56 Chapter 4 Programming the Full Function ......................57 4-1 Event Input ..............................57 4-2 Second Set Point ............................58 4-3 Second PID Set ............................58 4-4 Ramp &...

  • Page 5: Chapter 1 Overview

    ETR-3400 is powered by 11-26 V DC / AC or 90 - 264 V AC supply, incorporating a 3 amp. control relay output, 5V logic alarm output and a 3 amp. alarm relay output. The second alarm can be configured into second output for cooling purposes or a dwell timer.
  • Page 6 Figure 1.1 Fuzzy PID System Block PID + FUZZY CONTROL PROCESS FUZZY Fuzzy Rule Language information Fuzzy Inference Digital Digital Fuzzifier Defuzzifier Engine information information The function of Fuzzy Logic is to adjust PID parameters internally in order to make PID + FUZZY CONTROL Smarter Logic causes the following: If temperature difference is large and temperature rate is large, then delta MV is large.

  • Page 7: Ordering Code

    CM94-4 = Isolated 1 - 5V / 0 - 5V Retransmission Module CM94-5 = Isolated 0 - 10V Retransmission Module CM94-5 = Isolated 0 - 10V Retransmission Module CC94-1 = RS-232 Interface Cable (2M) CC94-1 = RS-232 Interface Cable (2M) UM34001A = ETR-3400 User's Manual UM34001A = ETR-3400 User's Manual...

  • Page 8: Programmingport Anddip Switch

    1-3 Programming Port and DIP Switch Figure 1.3 Access Hole Overview Access Hole Front Rear Panel Terminal The programming port connects to the P11A hand-held programmer for automatic programming, this also connects to an ATE system for automatic calibration and testing. Table 1.1 DIP Switch Configuration DIP Switch :OFF...

  • Page 9: Keys And Displays

    Indicator -19999 will be displayed by: Alarm 1 Indicator 3 Silicone Rubber Buttons ETR-3400 for ease of control setup and set point adjustment. Figure 1.4 Front Panel Layout 45536 will be displayed by: Table 1.3 Character Legend -9999 will be displayed by:...
  • Page 10 Display program code of the product for 2.5 seconds. Each display stays for 1.25 seconds ETR-3400 The left diagram shows program no. 0 ( for ETR-3400 ) with version Program version Program No. ETR-3400 Display Date Code and Serial number for 2.5 seconds.

  • Page 11: Menu Overview

    1-5 Menu Overview User PV Value Menu SV Value SEL1 SEL2 SEL3 SEL4 SEL5 Setup FUNC for 3 seconds COMM Menu PROT ADDR TIME BAUD A1SP DATA A1DV PARI A2SP Hand (Manual) for 3 seconds STOP A2DV Control AOFN RAMP AOLO Mode OFST...

  • Page 12: System Modes

    1-6 System Modes The controller performs a closed loop control mode under its normal control mode operation. The controller will maintain its normal control mode when you are operating the user menu, setup menu or display mode, reloading default values or applying an event input signal. Under certain conditions the normal control mode will transfer to an Exception Mode.

  • Page 13: Parameter Descriptions

    1-7 Parameter Descriptions Table 1.4 Parameter Description (1 of 7) Display Parameter Contained Basic Parameter Default Range Format Description Function Notation Value 100.0 C Set point 1 SP1L High: SP1H Low: (212.0 F) TIME High: Dwell Time 6553.5 minutes Low: 100.0 C Alarm 1 Set point See Table 1.5, 1.6...
  • Page 14 Table 1.4 Parameter Description (continued 2 of 7) Display Parameter Contained Basic Parameter Default Range Format Description Function Notation Value Address Assignment of Digital High: ADDR Low: COMM 0.3 Kbits/s baud rate 0.6 Kbits/s baud rate 1.2 Kbits/s baud rate 2.4 Kbits/s baud rate 4.8 Kbits/s baud rate Baud Rate of Digital COMM...
  • Page 15 Table 1.4 Parameter Description (continued 3 of 7) Display Parameter Contained Basic Parameter Default Range Format Description Function Notation Value N type thermocouple L type thermocouple PT 100 ohms DIN curve PT 100 ohms JIS curve 4 - 20 mA linear current input IN1 Sensor Type Selection 0 - 20 mA linear current input ( 0 )
  • Page 16 Table 1-4 Parameter Description (continued 4 of 7) Display Parameter Contained Basic Parameter Default Range Format Description Function Notation Value 0 - 20 mA current module 0 - 1V voltage module Output 1 Signal Type 0 - 5V voltage module O1TY 1 - 5V voltage module 0 - 10V voltage module...
  • Page 17 Table 1-4 Parameter Description (continued 5 of 7) Display Parameter Contained Basic Parameter Default Range Format Description Function Notation Value Alarm output OFF as unit fails Alarm 1 Failure Transfer A1FT Mode Alarm output ON as unit fails A2FN Alarm 2 Function Same as A1FN Alarm 2 Operation Mode Same as A1MD...
  • Page 18 Table 1-4 Parameter Description (continued 6 of 7) Display Parameter Contained Basic Parameter Default Range Format Description Function Notation Value Use SP1 or SP2 (depends on EIFN) as set point Use minute ramp rate as set point Use hour ramp rate as set point SPMD Set point Mode Selection Use IN1 process value as set point...
  • Page 19 Table 1.4 Parameter Description (continued 7 of 7) Display Parameter Contained Basic Parameter Default Range Format Description Function Notation Value Cold Junction Gain Low: -199.9 199.9 High: Calibration Coefficient Reference Voltage 1 High: REF1 Calibration Coefficient for Low: -199.9 199.9 RTD 1 Calibration Serial Resistance 1...
  • Page 20 Table 1.5 Input (IN1 of IN2) Range Input Type J_TC K_TC T_TC E_TC B_TC R_TC S_TC -120 C -200 C -250 C -100 C Range Low (32 F) (-184 F) (-328 F) (-148 F) (32 F) (32 F) (-418 F) 1767.8 C 1767.8 C 1000 C...

  • Page 21: Chapter 2 Installation

    Chapter 2 Dangerous voltages capable of causing death are sometimes present in this instrument. Before installation or beginning any troubleshooting procedures the power to all equipment must be switched off and isolated. Units suspected of being faulty must be disconnected and removed to a safe location.

  • Page 22: Wiring Precautions

    2-3 Wiring Precautions Before wiring, verify the label for correct model number and options. Switch off the power while checking. Care must be taken to ensure that maximum voltage rating specified on the label is not exceeded. It is recommended that power of these units to be protected by fuses or circuit breakers rated at the minimum value possible.

  • Page 23: Sensor Installation Guidelines

    2-5 Sensor Installation Guidelines Proper sensor installation can eliminate many problems in a control system. The probe should be placed so that it can detect any temperature change with minimal thermal lag. In a process that requires fairly constant heat output, the probe should be placed close to the heater.

  • Page 24: Rtd Input Wiring

    2-7 RTD Input Wiring RTD connections are shown in Figure 2.6, with the compensating lead connected to terminal 9. For two-wire RTD inputs, terminals 9 and 10 should be linked. The three-wire RTD offers the capability of lead resistance compensa- tion provided that the third wire is installed into PIN 9 as shown in Figure 2.6.

  • Page 25: Ct/Heater Current Input Wiring

    2-9 CT/Heater Current Input Wiring Figure 2.11 CT Input Wiring for Single Phase Heater Heater 1 Heater 2 Heater 3 Current Transformer Contactor Heater Supply CT94 1 Fuse Main Supply DIN Rail 9 10 11 12 13 14 CT Signal Input Figure 2.12 CT Input Wiring for Three Phase Heater Contactor Three Phase...

  • Page 26: Event Input Wiring

    2-10 Event Input Wiring Figure 2.13 Event Input Wiring 9 10 11 12 13 14 9 10 11 12 13 14 Switch Input Open Collector Input The event input can accept a switch signal as well as an open collector signal. The event input function (EIFN) is activated as the switch is closed or an open collector signal is initiated.
  • Page 27 No Fuse Three Phase Delta Contactor Heater Load Breaker Relay or Triac (SSR) Output to Drive Contactor Load 120V /240V 30 mA/5V Main Supply Pulsed Voltage Internal circuit 9 10 11 12 13 14 Pulsed Voltage to Drive SSR 0 - 20mA, 0 - 1V, 0 - 5V Load Load...

  • Page 28: Output 2 Wiring

    2-12 Output 2 Wiring Figure 2.15 Output 2 Wiring Max. 2A Resistive Load 120V/240V Main Supply 9 10 11 12 13 14 Relay Output Direct Drive 120V /240V Main Supply Three Phase Heater 9 10 11 12 13 14 Power Three Phase Delta No Fuse Heater Load...

  • Page 29: Alarm 1 Wiring

    0 - 20mA, 0 - 1V, 0 - 5V Load Load 4 - 20mA 1 - 5V, 0 - 10V Minimum Load Maximum Load 10 K ohms 500 ohms 9 10 11 12 13 14 9 10 11 12 13 14 Linear Voltage Linear Current Max.

  • Page 30: Alarm 2 Wiring

    2-14 Alarm 2 Wiring Figure 2.17 Alarm 2 Wiring Max. 2A Resistive Load 120V/240V MainSupply Relay Output Direct Drive 9 10 11 12 13 14 120V/240V MainsSupply Three Phase Heater 9 10 11 12 13 14 Power No Fuse Three Phase Delta Breaker Contactor...

  • Page 31: Rs-485

    2-15 RS-485 Figure 2.18 RS-485 Wiring RS-485 to RS-232 network adaptor SNA10A or 9 10 11 12 13 14 SNA10B RS-232 RS-485 Twisted-Pair Wire 9 10 11 12 13 14 Max. 247 units can be linked 9 10 11 12 13 14 Terminator 220 ohms / 0.5W...

  • Page 32: Rs-232

    RS-232 port CC94-1 NOTE: If the ETR-3400 is configured for RS-232 communication, the input 2 and EI (Event Input) ar disconnected internally. The unit can no longer perform event input function (EIFN) and input 2 function. When you insert a RS-232 module (CM94-2) to the connectors on CPU board (C250), the jumper J51 and J5 must be modified as following: J52 must be shorted and J51 must be cut and left open.

  • Page 33: Analog Retransmission

    2-17 Analog Retransmission Figure 2.22 Analog Retransmission Wiring The total effective resistance of serial loads can't exceed 500 ohms. 9 10 11 12 13 14 Load Load Indicators PLC's Recorders 0 - 20mA, Load Data loggers 4 - 20mA Invertors etc. Retransmit Current The total effective resistance of parallel loads should be greater than 10K Ohms.

  • Page 34: Programming Port

    2-18 Programming Port Figure 2.23 Programming Port Wiring See Figure 1.3 in Section 1-3 to find the programming port location. Programmer connector and ATE connector Programmer inserted here P11A Access hole I N P T 1 on the bottom view Switch Unit SW6400 HP 34401A...

  • Page 35: Chapter 3 Programming The Basic Function

    Chapter 3 Programming the Basic Function This unit provides a useful function parameter “FUNC”, this is used to select the Function Complexity Level before setup. If the Basic Mode (FUNC = BASC) is selected for a simple application, then the following functions are ig- nored and deleted from the full function menu: RAMP, SP2, PB2, TI2, TD2, PL1, PL2, COMM, PROT, ADDR, BAUD, DATA, PARI, STOP, AOFN, AOLO, AOHI, IN2, IN2U, DP2, IN2L, IN2H, EIFN, PVMD, FILT, SLEP, SPMD and SP2F.

  • Page 36: Input 1

    3-1 Input 1 Press to enter Setup Mode. Press to select parameter. The upper display indicates the parameter symbol, and the lower display indicates the selection or the value of parameter. Selects the sensor type and signal type for Input 1. IN1: Range: Thermocouple: J-TC, K-TC, T-TC, E-TC, B-TC, R-TC, S-TC, N-TC, L-TC...

  • Page 37: Out1 & Out2 Types

    3-3 Rearrange User Menu The ETR-3400 has the flexibility to provide selection of User Parameters which are most significant to your pro- cess. These parameters are placed in front of the display sequence.

  • Page 38: Display Sv Instead Of Pv

    3-4 Display SV Instead of PV In certain applications where set point value (SV) is more important than process value (PV) for the user, the pa- rameter disf (display format) then can be used to achieve this purpose. Press keys to enter setup menu set, then press several times until disf appears on the display.

  • Page 39: Cool Only Control

    . See section 3-21 for manual tuning. ETR-3400 contains Manual Tuning: May be used if self- a very clever PID and Fuzzy algorithm to acheive a very small over- tuning and auto-tuning are inadequate.

  • Page 40: Heat Cool Control

    3-7 Heat Cool Control The Heat-Cool Control can use one of 6 combinations of control modes. Setup of parameters for each control mode are shown in the following table. Table 3.1 Heat-Cool Control Setup Setup Values Heat Cool Control Modes Uses Uses OUT1 OUT2 O1HY OFST PB1 TI1 TD1 CPB...

  • Page 41: Dwell Timer

    CPB Programming: The cooling proportional band is measured by % of PB with range 1~255. Initially set 100% for CPB and examine the cooling effect. If cooling action should be enhanced then decrease CPB, if cooling action is too strong then increase CPB. The value of CPB is related to PB and its value remains unchanged throughout the self-tuning and auto-tuning procedures.

  • Page 42: Process Alarms

    3-9 Process Alarms There are at most two independent alarms available by adjusting OUT2. If AL2 is selected for OUT2, then OUT2 will perform alarm 2 function. Now A2FN can’t be selected with NONE, otherwise Er06 will be displayed. A process alarm sets an absolute trigger level (or temperature).
  • Page 43 Figure 3.6 Latching Process Alarm Process proceeds A1SP = 200 A1HY = 10.0 A1MD = LTCH A1FN = PV1.H Figure 3.7 Holding Process Alarm Process proceeds A1SP = 200 A1HY = 10.0 SP1 = 210 A1MD = HOLD A1FN = PV1.L Figure 3.8 Latching/Holding Process Alarm Process proceeds A1SP = 200...

  • Page 44: Deviation Alarms

    3-10 Deviation Alarm OUT2 can be configured as alarm 2 by selecting=AL2. If OUT2 selects=AL2, then output 2 will perform alarm 2 function. Now A2FN can’t be selected with NONE, otherwise Er06 will appear. A deviation alarm alerts the user when the process deviates too far from set point. The user can enter a positive or negative deviation value (A1DV, A2DV) for alarm 1 and alarm 2.

  • Page 45: Deviation Band Alarms

    3-11 Deviation Band Alarm A deviation band alarm presets two reference levels relative to set point. Two types of deviation band alarm can be configured for alarm 1 and alarm 2. These are deviation band high alarm (A1FN or A2FN select DB.HI) and devia- tion band low alarm (A1FN or A2FN select DB.LO).

  • Page 46: Heater Break Alarm

    3-12 Heater Break Alarm A current transformer (part No. CT94-1) should be installed to detect the heater current if a heater break alarm is required. The CT signal is sent to input 2, and the PV2 will indicate the heater current in 0.1 Amp. resolution. The range of the current transformer is 0 to 50.0 Amp.

  • Page 47: Loop Break Alarm

    3-13 Loop Break Alarm A1FN selects LB if alarm 1 is required to act as a loop break alarm. Similarly, if alarm 2 is required to act as a loop break alarm, then set OUT2 withAL2 and A2FN with LB. TIME, A1SP, A1DV and A1HY are hidden if alarm 1 is configured as a loop break alarm.

  • Page 48: Sensor Break Alarm

    3-14 Sensor Break Alarm Alarm 1 or alarm 2 can be configured as sensor break alarm by selecting SENB for A1FN or A2FN. If alarm 2 is required for sensor break alarm, then OUT2 should be selected with = AL2. The sensor break alarm is activated as soon as failure mode occurs.

  • Page 49: Pv1 Shift

    3-16 PV Shift In certain applications it is desirable to shift the controller display value from its actual value. This can be easily accomplished by using the PV1 shift. Press the “scroll” key until the control reaches the parameter SHIF. The value you adjust here, either positive or negative, will be added to the actual value.

  • Page 50: Failure Transfer

    3-17 Failure Transfer The controller will enter failure mode as one of the following conditions occurs: 1. SB1E occurs (due to the input 1 sensor break or input 1 current below 1mA if 4-20 mA is selected or input 1 voltage below 0.25V if 1-5 V is selected) if PV1, P1-2 or P2-1 is selected for PVMD or PV1 is selected for SPMD.

  • Page 51: Bumpless Transfer

    3-18 Bumpless Transfer The bumpless transfer function is available for output 1 and output 2 (provided that OUT2 is configured as COOL). Bumpless Transfer is enabled by selecting BPLS for O1FT and/or O2FT and activated as one of the following cases occurs: 1.

  • Page 52: Self-Tuning

    3-19 Self Tuning The Self-tuning which is designed by using an innovative algorithm provides an Self-tune Menu alternative option for tuning the controller. It is activated as soon as SELF is selected with YES. When Self-tuning is working, the controller will change its working PID values and compares the process behavior with previous cycle.

  • Page 53: Auto-Tuning

    3-20 Auto Tuning The auto-tuning process is performed at set point. The process will oscillate around the set point during tuning process. Set a set point to a lower value if overshooting beyond the normal setpoint is undesired. The auto-tuning is applied in cases of : •...
  • Page 54 Figure 3.22 Auto-tuning Procedure Auto-tuning Auto-tuning Begins Complete Waiting Warm-up Cycle Learning Cycle New PID Cycle Cycle =2 Integral Time Set Point Pre-tune Stage Post-tune Stage PID Control ON-OFF Control PID Control Cold Start Time Auto-tuning Auto-tuning Begins Complete Pre-tune Stage Waiting Cycle Learning Cycle...

  • Page 55: Manual Tuning

    3-21 Manual Tuning In certain applications (very few) using both self-tuning and auto-tuning to tune a process may be inadequate for the control requirement, then you can try manual tuning. Connect the controller to the process and perform the procedures according to Figure 3.23. Figure 3.23 Manual Tuning Procedure Use initial PID values to control the process...
  • Page 56 The PBu is called the Ultimate P Band and the period of oscillation Tu is called Ultimate Period the in the flow chart of Figure 3.23. When this occurs, the process is called in a critical steady state. Figure 3.24 shows a critical steady state scenario.
  • Page 57 Figure 3.25 (Continued) Effects of PID Adjustment I action TI too high Set point Perfect TI too low Time D action TD too low Perfect Set point TD too high Time...

  • Page 58: Signal Conditioner Dc Power Supply

    3-22 Signal Conditioner DC Power Supply Three types of isolated DC power supply are available to supply an external transmitter or sensor. These are 20V rated at 25mA, 12V rated at 40 mA and 5V rated at 80 mA. The DC power supply applications are shown in Figure 3.26.

  • Page 59: Manual Control

    3-23 Manual Control The manual control may be used for the following purposes: 1. To test the process characteristics in obtaining a step response as well as an impulse response for data needed in tuning a controller. 2. To use manual control instead of a close loop control as the sensor fails or the controller’s A-D converter fails. NOTE that a bumpless transfer can not be used for a long time.

  • Page 60: Heater Current Monitoring

    shows the difference value between process and set point (i.e. PV-SV). This value is used to control the output 1 and output 2. shows the process value of input 1 on the upper display. shows the process value of input 2 on the upper display. shows the current proportional band value used for control.

  • Page 61: Chapter 4 Programming The Full Function

    Because of limitation on terminals, pin 11 is used for both Event input and RS-232. If you want to change function of ETR-3400 from RS-232 to event input, you must modify jumper J51 and J52 on CPU board by opening jumper...

  • Page 62: Second Set Point

    4-3 Second PID Set In certain applications the process characteristics are strongly related to the process value. The ETR-3400 pro- vides two sets of PID values. When the process is changed to different set point, the PID values can be switched to match the new values.

  • Page 63: Ramp & Dwell

    4-4 Ramp & Dwell Ramp The ramping function is performed during power up as well as any time the set point is changed. Choose MINR or HRR for SPMD, the unit will perform the ramping function. The ramp rate is programmed by using RAMP which is shown as degrees per minute.

  • Page 64: Remote Set Point

    4-5 Remote Set Point SPMD selecting PV1 or PV2 will enable the ETR-3400 to accept a remote set point signal. If PV1 is selected for SPMD, the remote set point signal is sent to Input 1, and Input 2 is used for process signal input. If PV2 is selected for SPMD, the remote set point signal is sent to Input 2, and Input 1 is used for process signal.

  • Page 65: Differential Control

    4-6 Differential Control In certain applications it is desirable to control a second process such that its process value always deviates from the first process with a constant value. To set up differential control, see below. Setup: PVMD = P1-2 or PVMD = P2-1, SPMD=SP1.2 FUNC=FULL IN1,IN1L,IN1H are set according to input 1 signal IN2,IN2L,IN2H are set according to input 2 signal...

  • Page 66: Output Power Limits

    4-7 Output Power Limits In certain systems the heater (or cooler) is over-designed such that the process is too heavily heated or cooled. To avoid an excessive overshoot and/or undershoot you can use the Power Limit function. Output 1 power limit PL1 is contained in User Menu. If output 2 is not used for cooling (that is COOL is not selected for OUT2), then PL2 is hidden.

  • Page 67: Data Communication

    RS-232 Setup: FUNC=FULL, COMM=232, PROT=RTU, ADDR=Address, BAUD=Baud Rate, DATA=Data Bit Count, PARI=Parity Bit, STOP=Stop Bit Count Note: If the ETR-3400 is configured for RS-232 communication, the EI (Event Input) and input 2 are disconnected internally. The unit can no longer perform until an RS-232 module is connected.

  • Page 68: Analog Retransmission

    Pv2). It is required that if the difference value is -100, 4mA will be exported, and if the difference value is 100, 20mA will be exported. Make the following Setup for ETR-3400: IN1U PU, DP1 NODP, IN2U PU, DP2 NODP, FUNC FULL,...

  • Page 69: Digital Filter

    In certain applications the process value is too unstable to be read. To improve this, a programmable low pass filter incorporated in the ETR-3400 can be used. This is a first order filter with a time constant specified by the FILT pa- rameter which is contained in the setup menu.

  • Page 70: Pump Control

    4-12 Pump Control Pump Control function is one of the unique features of the ETR-3400. Using this function, the pressure in a process can be controlled precisely. The pressure in a process is commonly generated by a pump driven by a variable speed motor.

  • Page 71: Remote Lockout

    Programming Guide: 1. Perform auto-tuning to the system under such a condition that the material (i.e. pressure) is exhausted at typical rate. A typical value for PB1 is about 10 Kg/cm , TI1 is about 1 second, TD1 is about 0.2 second. 2.

  • Page 72: Chapter 5 Applications

    5-1 Pump / Pressure Control A regulated water supply system is widely used in residence, water plant, chemical plant, electrical plant, semi- conductor plant ... etc. Taking the advantage of PUMP function, the ETR-3400 can be used for these types of applications.

  • Page 73: Variable Period Full Wave Ssr (Vpfw Ssr)

    Set the following parameters in the setup menu: FUNC=FULL OUT1=REVR FILT=1 COMM: optional O1TY=4-20 SELF=NONE IN1=4-20 O1FT=0 SLEP=NONE IN1U=PU OUT2=DCPS SPMD=PUMP DP1=2-DP A1FN: optional SP1L=5.00 IN1L=0 EIFN=NONE SP1H=15.00 IN1H=20.00 PVMD=PV1 SP2F=DEVI IN2=NONE Adjust the following parameters in the user menu: A1SP: optional Key menu: REFC= 3...
  • Page 74 Harmonic Current Higher Stress on the Load Load ( Heater ) Life Longer Shorter The output 1 and output 2 of ETR-3400 can be connected to VPFW SSR directly provided that a pulsed voltage drive output (ETR-3400-XX2XXX or ETR-3400-XXX2XX) is ordered.

  • Page 75: Heat Only Control

    An oven is designed to dry the product at 150˚F for 30 minutes and then stay unpowered for another batch. An ETR-3400 equipped with dwell timer is used for this purpose. The system diagram is shown as follows: Figure 5.5 Heat Control Example SP1=150.0...

  • Page 76: Cool Only Control

    5-4 Cool Only Control An ETR-3400 is used to control a refrigerator at temperature below 32˚F. To avoid the set point adjustment beyond the desired range, SP1L is set at 14˚F and SP1H is set at 32˚F. The temperature is lower than the ambient, a cool- ing action is required.

  • Page 77: Heat-Cool Control

    Since plastics are injected at a higher temperature (e.g. 250˚F), the circulation oil needs to be cooled as its temperature rises. Here is an example: Figure 5.7 Heat-Cool Control Example Injection Mold Plastics 120 F Pump Oil Tank Freezer Heater Supply 4-20 mA OUT2 OUT1 ETR-3400...

  • Page 78: Ramp & Dwell

    Apply Auto-Tuning at 120˚F for a new system to get an optimal PID values. See Section 3-20. The ETR-3400 is designed without heating-cooling dead band. The dead band, however, is implicitly contained in a very clever program such that if the process value increases (not necessarily exceeds the set point), the cooling control will provide an optimal amount of cool to the process.
  • Page 79 The circuit diagram and its temperature profile are shown below: Figure 5.8 Temperature Cycling Chamber Chamber Freezer Heater Inverter 5V DC Mains Relay 9 10 11 12 13 14 TIME = 60.0 (minutes) SP1 = 60.0˚F SP2 = -10.0˚F Cycle Timer CPB = 100(%) RAMP = 14.0 (F/minute) Figure 5.9 Temperature Profile of Chamber...
  • Page 80 ETR-3400 provides 4-20 mA signal to control the speed of the Inverter SP.P2 being chosen for EIFN is for the purpose of accomplishing a dual PID control. You can perform auto-tuning twice at SP1 and SP2 for initial setup to the dual values.

  • Page 81: Remote Set Point

    If you order a ETR-3400 with a retransmission unit for the master controller, and retransmit its set point to the input 2 of the rest of slave controllers, each zone will be synchronized with the same temperature. Here is an example: Figure 5.12 Remote Set Point Application...

  • Page 82: Differential Control

    4.12 M Height Outlet ETR-3400 Adjust SP1(here it is 1.00) to control the difference between PV1 and PV2. Choosing P1-2 for PVMD, the PV dis- play will show the difference value (PV1-PV2) between PV1 and PV2, and this value will be stabilized to the set point If you need PV1 or PV2 instead of PV, you can use the Display Mode to select PV1 or PV2 to be displayed.

  • Page 83: Dual Set Point / Pid

    5-9 Dual Set Point / PID The ETR-3400 will switch between the two PID sets based on the process value, the set point or either of the event input. As the control ramps up to the higher process value, the process characteristics change. As this happens, the original PID values are no longer valid.
  • Page 84 Example 2: Dual Set Point / PID A heat treating furnace is required to harden the mold at a high temperature (1000˚F) for 30 minutes, then the mold is cooled down with a programmable ramp (20˚F/minute) toward a lower set point (200˚F). Use the dual set point / PID and ramp / dwell functions for this application.

  • Page 85: Rs-485

    A cost effective solution for the above application is to use 80 units of ETR-3400 plus a SNA 10B Smart Network Adaptor and PC based software for this purpose. The system is installed as shown in the following diagram.

  • Page 86: Retransmit

    Setup Enter the setup mode to configure each ETR-3400. Choose FULL for FUNC, 485 for COMM, RTU for PROT and select an unequal address (ADDR) for each unit. Use the same values of BAUD, DATA, PARI and STOP for each ETR-3400, SNA10B and ETR-Net.
  • Page 87 Figure 5.18 Retransmission Application SP1= 25.0 SP1= 50.0 SP1L= 20.0 SP1L= 40.0 SP1H= 30.0 SP1H= 60.0 ETR-3400 ETR-3400 Retransmission Output 0 - 5 V 0 - 5 V Chart Recorder 1. 20-30 F 2. 40-50% SP1L and SP1H are used to limit the adjustment range of set point.

  • Page 88: Chapter 6 Calibration

    Chapter 6 Calibration Do not proceed through this section unless there is a definite need to re-calibrate the controller. Otherwise, all previous calibration data will be lost. Do not attempt recalibration unless you have appropriate calibration equipment. If calibration data is lost, you will need to return the controller to your supplier who may charge you a service fee to re-calibrate the controller.
  • Page 89 5. Change the DIP switch for the RTD input . Press scroll key until the display shows ref.1. Send a 100 ohms signal to terminals 8, 9 and 10 according to the connection shown below: Figure 6.1 RTD Calibration 100 ohms ETR-3400 DIP Switch Position DIP Switch Position DIP Switch Position...
  • Page 90 CAUTION: it is not recommended to use this step 10N, since the cold junction will prevent accu- rate readings. 11. Set the DIP switch to your desired position (refer to section 1-3) Automatic Calibration Procedures The programming port (see Section 2-18) of ETR-3400 can be used for automatic calibration.

  • Page 91: Chapter 7 Error Codes & Troubleshooting

    Press both sides of the latch located on rear terminal block. Hold tightly and remove the terminal block from the housing. Expand the rear edge of the housing by using a tool. Pull out the PCB from the housing ETR-3400...
  • Page 92 Table 7.1 Error Codes Display Error Error Description Corrective Action Symbol Code Illegal setup values been used: PV1 is used for both PVMD Check and correct setup values of PVMD and SPMD. PV and SPMD. It is meaningless for control. and SV can't use the same value for normal control Illegal setup values been used: PV2 is used for both PVMD Same as error code 1...
  • Page 93 Table 7.2 Common Failure Causes and Corrective Actions Symptom v i t - Clean contact area on PCB -Bad connection between PCB & keypads 1) Keypad does not function - Replace keypads - No power to instrument - Check power line connections 2) LED's will not light - Power supply defective - Replace power supply board...

  • Page 94: Chapter 8 Specifications

    Chapter 8 Specifications Power 90 264 VAC, 47 63 Hz, 15VA, 7W maximum 11 26 VAC / VDC, 15VA, 7W maximum Input 1 Resolution: ............18 bits Sampling Rate ............. 5 times/second Maximum rating: ..........-2 VDC minimum, 12 VDC maximum (1 minute for mA input) Temperature Effect: ..........
  • Page 95 Characteristics: Type Range Accuracy @ 25˚C Input Impedance CT94-1 0 to 50.0 A 2% of Reading 0.2 A 265 KΩ -1.3 to 11.5 V 0.05% 265 K Input 3 (Event Input) Logic Low: ............-10V minimum, 0.28V maximum. Logic High: ............Open or 0.32V minimum, 10V maximum External pull-down Resistance: ......
  • Page 96 Alarm 1 / Alarm 2 Alarm 1: ............... 5V DC logic output, max. source current 100mA, short circuit unprotected. Alarm 2 Relay: ............. Form A, Max. rating 2A/240VAC, life cycles 200,000 for resistive load. Alarm Functions: ..........Dwell timer, Deviation High / Low Alarm Deviation Band High/Low Alarm, PV1 High/Low Alarm PV2 High/Low Alarm, PV1 or PV2 Hig /Low Alarm PV1-PV2 High/Low Alarm, Loop Break Alarm, Sensor Break Alarm.
  • Page 97 Power Limit: ............0 - 100 % output 1 and output 2 Pump / Pressure Control: ........Sophisticated functions provided Remote Set Point: ..........Programmable range for voltage or current input Differential Control: ..........Control PV1-PV2 at set point Digital Filter Function: ..............

  • Page 98: Appendix

    A-1 Menu Existence Conditions Menu Existence Conditions Table Parameter Menu Notation Existence Condition Exists unconditionally TIME Exists if A1FN selects TIMR or A2FN selects TIMR A1SP Exists if A1FN selects PV1H, PV1L, PV2H, PV2L, P12H, P12L, D12H or D12L A1DV Exists if A2FN selects PV1H, PV1L, PV2H, PV2L, P12H, P12L, D12H or D12L A2SP Exists if A1FN selects DEHI, DELO, DBHI, or DBLO...
  • Page 99 Parameter Menu Notation Existence Condition IN1U Exists unconditionally IN1L Exists if IN1selects 4-20, 0-20, 0-1V, 0-5V, 1-5V, or 0-10 IN1H Exists if FUNC selects FULL IN2U Exists if IN2 selects 4-20, 0-20, 0-1V, 0-5V, 1-5V, or 0-10 IN2L IN2H OUT1 O1TY CYC1 Exists unconditionally...

  • Page 100: Factory Menu Description

    A-2 Factory Menu Description Parameter Display Default Notation Format Parameter Description Range Value EROR Eror Current Error Code Low: 0 High: 40 — Prog Program Identification Code Contains Low: 0 High: 15.99 — PROG Program Number and Version Number ode Contains Lockout Status Code and Current Low: 0 High: 3.5 —...
  • Page 101 Parameter Display Default Notation Format Parameter Description Range Value HRLO Hrlo Fractional Hour Value Low: 0 High: 0.9 Hour — ERR1 Err1 Historical Error Record 1 Low: 0 High: FFFF ERR2 Err2 Historical Error Record 2 Low: 0 High: FFFF deli ASCII Input Delimiter Low: 0000 High: 007F...

  • Page 102: Glossary

    A-3 Glossary Absolute Zero: The lowest theoretical temperature. At Automatic reset (Integral): The integral function of absolute zero, a body would have no molecular motion a control that automatically compensates for the dif- of heat energy. Absolute zero is the zero point on the ference between the set point and the actual process Rankine and Kelvin scale.
  • Page 103 CE: A mark that designates compliance with European Default parameters: The parameters, or programmed Union (EU) requirements for products sold in Europe. instructions, permanently stored in microprocessor software to provide a data base. Celsius: (Centigrade) A temperature scale with 0˚C de- fined withas the ice point and 100˚C as the boiling point Derivative: (See Rate) of water at sea level.
  • Page 104 FM: Factory Mutual Research Corp. An organization Heat of fusion: The amount of energy required to which sets industrial safety standards. change one pound of a material from a solid to a liquid without an increase in temperature. Expressed in Btu/lb. FM-approved: An instrument that meets a specific set of specifications established by Factory Mutual Re- Heat of vaporization: The amount of energy required...
  • Page 105 ISE: Integrated squared error system. The microprocessor in a process or instrument control decodes instructions from the stored program, Isolation: Electrical Separation performs algorithmic and logic functions, and produc- Isothermal: A process or area that maintains a con- es signals and commands. stant temperature.
  • Page 106 Process alarm: A fixed alarm or secondary set point Response time (Time constant): The time required by value independent of the primary set point. Should a a sensor to reach 63.2% of a step change in tempera- process value exceed this value, an alarm condition ture under a specified set of conditions.
  • Page 107 SSR: Solid state relay (see relay, solid state). Triac: A solid state switching device used to switch al- ternating current wave forms. Stability: The ability of an instrument or sensor to Triple point (water): The thermodynamic state where maintain a constant output when a constant input is applied.

  • Page 108: Memo

    A-4 Memo Use the following Table as a master copy for your settings Contained Parameter Display Your Contained Parameter Display Your Notation Format Setting Notation Format Setting AOLO Aolo TIME AOHI ti e AoHi A1SP a1sp A1DV IN1U in1u A2SP a2sp A2DV IN1L...
  • Page 109 Contained Parameter Display Your Contained Parameter Display Your Notation Format Setting Notation Format Setting SP1H PVHI sp1H P Hi SP2F PVLO Sp2f p lo DISF d1Sf H___ SEL1 sel1 C___ Setup Menu SEL2 sel2 SEL3 sel3 Display SEL4 sel4 Mode SEL5 sel5 Menu...
  • Page 110 Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx. Chromalox, Inc. 1347 Heil Quaker Boulevard Lavergne, TN 37086 (615) 793-3900 www.chromalox.com © 2018 Chromalox, Inc.

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