NHR-E300 Series AI PID Regulator

Overview

    NHR-E300 series AI PID regulator adopts control algorithm with priority on differential with exterior setting and valve position control function, which may be used together with sensors and transducers for measurement and display of physical values such as temperture, pressure, liquid level, volume, and speed; when used with executors, it can also realize PID regulation and control to electric heating equipment and electromagnetic and electric valves, as well as alarm control and data collection etc.
       * Dual-screen LED display with light beam analog indication (0-100%);
       * 36 types of signal input available; input signal type is selectable with measurement precision of 0.2%;
       * "Upper/lower-limit alarm", "deviation alarm", "LBA alarm", "blink alarm" and other alarm functions are available with LED alarm lamp indication;
       * One PID control output and one analog value transducing output are available; output control modes such as current, voltage, SSR drive, single/three-phase silicon controlled rectifier zero passage triggering, relay contact are at user’s choice;
       * PID parameters self-tuning and manual/automatic switch of control output with accurate cotnrol but without overshooting;
       * Supporting RS485 and RS232 serial interfaces, with standard MODBUS RTUcommunication protocol adopted;
       * RS232C printing available, cable of manual printing, timed printing, and alarm printing etc;
       * DC24V feed output is available for power distribution for transducer on the site;
       * Photoelectric isolation technology has been adopted between input, output, power, and communication;
       * Multiple sizes and styles are available for user's choice;
       * Password lock for parameters setting which would be stored permanently in case of power-off; parameters reset available.
 

Instrument panel

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160*80mm(Type A)80*160mm(Type B)96*96mm(Type C)96*48mm(Type D)48*96mm(Type E)
     

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160*80mm(Type K)80*160mm(Type L)96*96mm(Type M)72*72mm(Type F)48*48mm(Type H)

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Parameter function

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    Note: The above has given all parameters of the instrument; in case of non-full-featured instrument, parameters for functinos not available will not be specified.
 

Wiring diagram

Wiring diagram of NHR-E310 single-way intput PID regulator
       

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    Wiring diagram of model A, B, C, D, E, K, L, and M
             Note: the wiring terminal directions at rear cover of horizontal and vertical instrument are different; see Figure 1.

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             Figure 1

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       Wiring diagram of model F

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         Wiring diagram of model H

    * Note: in the above diagram, if one group of terminals has different functions, only one of them may be available. For example, RS485 and RS232 are on the same group of terminals, so only one of them can be selected.
Wiring Diagram of NHR-E320 Two-way Input (Exterior Setting)
       

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    Wiring diagram of model A, B, C, D, E, K, L, and M
             Note: the wiring terminal directions at rear cover of horizontal and vertical instrument are different; see Figure 1.

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             Figure 1

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       Wiring diagram of model F
    * Note: in the above diagram, if one group of terminals has different functions, only one of them may be available. For example, RS485 and RS232 are on the same group of terminals, so only one of them can be selected.
Wiring Diagram of NHR-E330 Two-way Input (Valve Position Control) PID Controller
       

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    Wiring diagram of model A, B, C, D, E, K, L, and M
             Note: the wiring terminal directions at rear cover of horizontal and vertical instrument are different; see Figure 1.

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             Figure 1

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       Wiring diagram of model F
    * Note: in the above diagram, if one group of terminals has different functions, only one of them may be available. For example, RS485 and RS232 are on the same group of terminals, so only one of them can be selected.
 

 Model selection

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①Specification②First-channel (measurement) input graduation
③Second-channel (valve position feedback or exterior setting) input graduation
CodeWidth*height*depthCodeGraduation (measurement range)
A
B
C
D
E
F
H
K
L
M
160*80*110mm (horizontal)
80*160*110mm (vertical)
96*96*110mm (square)
96*48*110mm (horizontal)
48*96*110mm (vertical)
72*72*110mm (square)
48*48*110mm (square)
160*80*110mm (horizontal/light beam)
80*160*110mm (horizontal/light beam)
96*96*110mm (square/light beam)
X
00
01
02
03

04

05

06

07
08

09

10

11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
55
56
No input signal
Thermocoupleb (400~1800℃)
Thermocouples (0~1600℃)
Thermocouplek (0~1300℃)
Thermocouple E graduation (0~1000℃)
Thermocouple T graduation(-200.0~400.0℃)
Thermocouple J graduation (0~1200℃)
Thermocouple R graduation (0~1600℃)
Thermocouple N graduation (0~1300℃)
Thermocouple F2 graduation (700~2000℃)
Thermocouple Wre3-25 graduation (0~2300℃)
Thermocouple Wre5-26 graduation (0~2300℃)
Thermal resistance Cu50 (-50.0~150.0℃)
Thermal resistance Cu53 (-50.0~150.0℃)
Thermal resistance Cu100 (-50.0~150.0℃)
Thermal resistance Pt100 (-200.0~650.0℃)
Thermal resistance BA1 (-200.0~600.0℃)
Thermal resistance BA2 (-200.0~600.0℃)
Linear resistance 0~400Ω (-1999~9999)
Remote transmission resistance 0~350Ω (-1999~9999)
Remote transmission resistance 30~350Ω (-1999~9999)
0~20mv (-1999~9999)
0~40mv (-1999~9999)
0~100mv (-1999~9999)
-20~20mv (-1999~9999)
-100~100mv (-1999~9999)
0~20mA (-1999~9999)
0~10mA (-1999~9999)
4~20mA (-1999~9999)
0~5V (-1999~9999)
1~5V (-1999~9999)
-5~5V (-1999~9999)
0~10V (-1999~9999)
0~10mA (extraction) (-1999~9999)
4~20mA (extraction) (-1999~9999)
0~5V (extraction) (-1999~9999)
1~5V (extraction) (-1999~9999)
Full switch
Special specification
④Control output (OUT1)
CodeOutput type (load resistanceRL)
0
1
2
3
4
5
K1
K3
          K4 K5
          K6
           8
4-20mA (RL≤600Ω)
1-5V (RL≥250KΩ)
0-10mA (RL≤1.2KΩ)
0-5V (RL≥250KΩ)
0-20mA (RL≤600Ω)
0-10V (RL≥4KΩ)
Relay contact output
Single-phase silicon controlled rectifier zero passage triggering pulse output
Solid state relay driven voltage output
Two-way silicon controlled rectifier output at open circuit
Three-phase silicon controlled rectifier zero passage triggering pulse output
Special specification
⑤Transducing output (OUT2)
CodeOutput type (load resistanceRL)
X
0
1
2
3
4
5
8
No output
4-20mA (RL≤600Ω)
1-5V (RL≥250KΩ)
0-10mA (RL≤1.2KΩ)
0-5V (RL≥250KΩ)
0-20mA (RL≤600Ω)
0-10V (RL≥4KΩ)
Special specification
⑥Limits for alarm (Relay contact output)
CodeLimits for alarm
X
1
2
No output
1-limit alarm
2-limit alarm
⑦Communication output/External event input⑧Feed output
CodeCommunication interface/digital value input interfaceCodeFeed output (output voltage)
X
D1
D2
D3
Y1
Y2
Y3
No output
RS-485 communication interface (Modbus)
RS232communication interface (Modbus)
RS232Printing interface
External event input1 (compulsorily manual)
External event input2
External event input3
X
1P
2P
No output
1-way feed output
2-way feed output
For example, "2P (12/24)" means first-channel output of 12V and second-channel feed output of 24V.
⑨Power supply⑩Remarks (omissible if not available)
CodeVoltage range 
A
D
AC/DC 100~240V (50/60Hz)
DC 20~29V
Remarks:
    1. Please select functions based on wiring diagram upon model selection. As terminals of smaller instrument are less than those on bigger ones, only one of several functions may be selected on the same group of terminals.
       2. Instruments with specifications and sizes of the F mode do not have RS232C print interface, and instruments with specifications and sizes of the H mode can only realize single-channel control.
       3. The contact capacity of the relay of instruments with specifications and sizes of the D or E mode is AC 125 V/0.5 A and DC 24 V/0.5 in case that there are alarms between terminal 25 and terminal 36 of these instruments, so it is instruments with specifications and sizes of the H mode, while the relay contact capacity of other instruments is AC 220 V/2 A and DC 24 V/2 A.
       4. The alarm output can only be the second limited alarm when the K5 control output functions (output and reversed output) of the instruments are selected.
       5. When the control output of instruments of NHR-5310/5320 mode is K1, it means the instruments are operated under single relay contact output; and when that of NHR-5330 mode is K1, it means the instruments are operated under normal and reversed relay contact output.
       6. The model must be written in detail; functions not selected shall not be omitted but marked with "X".
       Example 1: NHR-E310A-14/X-0/0/2/X/X-A (single-way control)
       Example 2: NHR-E320A-14/27-K1/0/2/D1/X-A (exterior setting control)
       Example 3: NHR-E330A-14/27-0/0/2/Y1/X-A (valve position control)
       Example 4: NHR-E330A-14/27-K1/0/2/D1/X-A (normal/reverse turning control with valve position)
       Example 5: NHR-E330A-14/X-K1/X/2/X/X-A (normal/reverse turning control without valve position)

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