Yudian AI-501 Technical manual

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AI-501
INTELLIGENT INDICATING/ALARMING INSTRUMENT
Operation Instruction
CONTENTS Page
MAIN FEATURES……………………….………………………………………..…2
ORDERING CODE………………………………………………………………….3
TECHNICAL SPECIFICATION…………………………………………………….5
FRONT PANEL AND OPERATION………………………………………………..6
PARAMETER AND SETTING……………………...………………………………7
TERMINAL LAYOUT AND WIRING………………...……………………………..9

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MAIN FEATURES:
● Programmable and modular inputs, supporting multiple input types of thermocouples, RTDs, voltage/current
and two-wire transmitters. Suitable for measuring and displaying temperature, pressure, flow, level, humidity,
etc with measurement accuracy of 0.3% full scale.
● Dual display windows, convenient to set parameters and alarm points. Various dimensions are selectable.
● Supports up to 4 loops of alarms including 2 loops of high limit alarms plus 2 loops of low limit alarms.
Alarms can be outputted to different relays or share one.
● With functions of digital calibrating, digital filtering, and thermocouple cold junction auto compensating, it is
free of maintenance and easy operated.
● Supports RS485 communication interface, able to communicate with computers.
● Retransmission function, cooperating with X3 high precision current output module (0.2%FS), can
retransmit temperature with accuracy of 0.3%FS.
● High quality and performance hardware design, using high performance tantalum capacitor or ceramic
capacitor. Compared to competing models, it consumes less electricity, experiences less temperature
shifting, provides higher stability and reliability and can work in a wider range of temperature. The power
and I/O terminals have passed the anti-interference test of 4KV/5KHz burst of pulses.
● Universal 100-240V power supply, with thunderbolt proof and 10 seconds protection from connecting to
380VAC by mistake.

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ORDERING CODE:
The ordering code of AI-501 is made up of 8 parts, for example:
AI-501 A NX3 L5 N S4 — 24VDC
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
This means an instrument with ①model AI-501, ② dimension A (96x96mm), ③ no module in MIO (multiple
input/output) slot, ④ X3 linear current output module installed in OUTP (main output) slot, ⑤ L5 dual relay output
module in ALM (alarm) slot, ⑥ no module in AUX (auxiliary output), ⑦ RS485 communication interface module S4
in COMM (communication) slot, and ⑧24VDC power supply.
The meanings of the 8 parts of ordering code are as below:
① Shows the model of instrument
AI-501 Indicating/Alarming Instrument with measurement accuracy of 0.3%FS
② Shows the front panel dimension:
Size
Front Panel
Width X Height
Cut Out
Width X height
Depth Behind Light Bar
A 96 X 96 mm 92 X 92 mm 100 mm No
A2 96 X 96 mm 92 X 92 mm 100 mm 25 segments and 4 levels
B 160 X 80 mm 152 X 76mm 100 mm No
C 80 X 160 mm 76 X 152mm 100 mm No
C3 80 X 160 mm 76 X 152mm 100 mm 50 segments and 2 levels
D 72 X 72 mm 68 X 68 mm 95 mm No
E 48 X 96 mm 45 X 92 mm 100 mm No
F 96 x 48 mm 92 X 45 mm 100 mm No
D2 48 X 48 mm 45 X 45 mm 95 mm No
③ Shows the module types of multiple input/output (MIO). Selectable modules are as follows:
V5/V10 Isolated 5 /12 /10 /24VDC voltage output, can supply power for external transmitter or transducer.
V12 / V24
I4 4-20mA or 0-20mA analogue input interface with 24VDC/50mA power supply, can directly
connect to two-wire transmitter
I7 0~5A current input module, can measure 5A alternating current directly.
I8 0~500V voltage input module, can measure 0~500VAC alternating voltage directly
④ Shows the module types of main output (OUTP):
Installing X3 or X5 (isolated type) current output module can retransmit process value (PV).
⑤ Shows the module type of alarm output (ALM):
Can output alarms by installing L1, L2, or L4 relay output module or L5 dual relay output module.
⑥ Shows the module type of auxiliary output (AUX):

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Can output alarms by installing L1, L2, L4 or L5 relay output module.
⑦ Shows the module type of communication (COMM):
Installing S or S4 module can communicate with RS485 interface.
⑧ Shows type of power supply:
Null indicates 100～240VAC power supply, and “24VDC” indicates 20～32VDC/AC power.
Note 1: 4～20mA or 0～20mA standard current signal can be inputted by converting to 1～5V/0～5V voltage
signal with a 250 ohm resistor or installing I4, module in MIO slot. I4 can supply 24VDC power to 2-wire
transmitter.
Note 2: D dimension instruments have no MIO slot, and its COMM and ALM share the same slot and can’t be
installed at the same time. Its ALM only, support AL1 single loop alarm. D2 dimension instruments have
only OUTP slot and COMM / AUX slot.
Note 3: Current module X3 and RS485 communication module S share the same power supply in the instrument,
and are not electric isolated to each other. Therefore, if X3 current module is installed in OUTP slot and
RS485 communication is need at the same time, then RS485 communication module should be S4
which itself has isolated power supply.
Note 4: The instrument applies the technology of auto zero and digital calibration, and is free of maintenance. If
the error exceeds certain range, generally, cleaning and drying the inside of the instrument can fix it. If
not, send the instrument back to the factory to examine and repair.
Note 5: Free repair and maintenance will be given in 36 months since the delivery. In order to get full and correct
repair, write the phenomena and causes of the malfunction of the instrument.

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TECHNICAL SPECIFICATION:
●Input type :
Thermocouple: K, S, R, E, J, N
Resistance thermometer: Pt100, Cu50
Linear voltage: 0～5V, 0～1V, 0～500mV, 0～100mV, 0～60mV, 0～20mV, 100～500mV, 0～10V, 0～20V,
Linear current (should connect a external resistor or install I4 module in MIO slot): 0～20mA, 4～20mA
Linear resistor: 0～80 ohm, 0～400 ohm
Alternating current: 0～5A
Alternating voltage: 0～500VAC
●Measurement range :
K(0～+1300 ), S(0℃～1700 ), R(0℃～1700 ), E(0℃～1000 ), J(0℃～1200 ), N(0℃～1300 ),℃
Pt100(-200～+800 )℃, Cu50(-50～+150 )℃
●Linear input :
-9990～+30000 unit defined by user
●Measurement accuracy :
0.3%FS±1
●Temperature display resolution :
0.1 for K, E, J℃, N, Pt100 and 1 for S, R℃
●Temperature shift :
≤0.015%FS/ (typical value is 75ppm/ )℃℃
●Electromagnetic compatibility (EMC) :
IEC61000-4-4, ± 4KV/5KHz; IEC61000-4-5, 4KV
●Retransmission :
When X3 or X5 current module is installed in OUTP slot, process value (PV) can be retransmitted to standard
current with maximum load resistor 500 ohm.
●Alarm function :
High limit, low limit, second high limit and second low limit
●Isolation withstanding voltage :
Between power, relay contact or signal terminals ≥2300VDC; between isolated electroweak signal
terminals≥600VDC
●Power supply :
100～240VAC, -15%, +10% / 50-60Hz; 24VDC / AC, -15%, +10%
●Power consumption: ≤5W
●Operating Ambient :Temperature -10～+60 ; humidity ≤90%RH℃
●Front panel dimension: 96×96mm, 160×80mm, 80×160mm, 48×96mm, 96×48mm, 72×72mm, 48×48mm
●Panel cutout dimension: 92×92mm, 152×76mm, 76×152mm, 45×92mm, 92×45mm, 68×68mm, 45×45mm
●Depth behind mounting surface: ≤100mm

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FRONT PANEL AND OPERATION:
① Upper display window, displays PV, or code of a
parameter
② Lower display window, displays alarming code or
parameter value
③ Setup key, for accessing parameter tables, and
confirming change.
④ Data shift key
⑤ Data decrease key
⑥ Date increase key
⑦ Indicator lamps: OP1 and OP2 indicate the status of current retransmission. AL1, AL2, AU1and AU2 indicate the
I/O actions of the corresponding modules.
Basal display status : When power on, the upper display window of the instrument shows the process value (PV).
This status is called basal display status. When the input signal is out of the measurable range (for example, the
thermocouple or RTD circuit is break, or input specification sets wrong), the upper display window will alternately
display “orAL” and the high limit or the low limit of PV.
Parameter Setting: In basal display status, press and hold for about 2 seconds, can access Field Parameter
Table. If the parameter lock “Loc” isn't locked (Loc=0), we can modify the value of parameters by 、 or . .
Press key to decrease the value, keyto increase the value, and key to move to the digit expected to
modify. Keep pressing or , the speed of increasing or decreasing value get quick. Pressing can go
to the next parameter. Press and hold can return to the preceding parameter. Press (don't release) and
then press simultaneously can escape from the parameter table. The instrument will escape automatically from
the parameter table if no key is pressed within 30 seconds. Setting Loc=808 and then press can access System
Parameter Table.

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PARAMETER AND SETTING
● Field parameter table (Press and hold for 2 seconds to access)
Code Name Description Setting
Range
HIAL High limit alarm Alarm on when PV (Process Value) >HIAL; Alarm off when PV<HIAL-AHYS
-9990～
30000
LoAL Low limit alarm Alarm on when PV<LoAL; alarm off when PV>LoAL+AHYS
HdAL Second high limit alarm Alarm on when PV>HdAL; alarm off when PV<HdAL-AHYS
LdAL Second low limit alarm Alarm on when PV<LdAL; alarm off when PV>LdAL+AHYS
Loc Parameter lock
0～3: allowed to modify field parameters;
4～255: can only modify “Loc”; setting
Loc=808 and then pressing can access system parameter table.
0～9999
● System parameter table (set Loc=808 and then press to access)
AHYS Alarm hysteresis
Avoid frequent alarm on-off action because of the fluctuation of PV. For
temperature alarm, it is recommended to be 0.5～2℃.
0～200
AOP
Alarm output
assignment Example:
AOP = 3 3 0 1
LdAL HdAL LoAL HIAL
It shows that HdAL and LdAL are sent to AU1, LoAL has no output,
HIAL is sent to AL1.
Note : Installing L5 dual relay output module in ALM or AUX can
implement AL2 or AU2 alarm.
Alarm
Output to
LdAL
(x 1000)
HdAL
(x100)
LoAL
(x10)
HIAL
(x1)
None 0 0 0 0
AL1 1 1 1 1
AL2 2 2 2 2
AU1 3 3 3 3
AU2 4 4 4 4
0～4444
INP Input specification
INP Input type INP Input type
0 K 20 CU 50
1 S 21 PT 100
2 R 26 0~80 omhs
3 SPARE 27 0~400 omhs
4 E 28 0~20mV
5 J 29 0~100mV
0~37

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6 SPARE 30 0~60mV
7 N 31 0~500mV
8~13 SPARE 32 100~500mV
14 SPARE 33 1~5V
15 4~20mA, (I4 module need) 34 0~5V
16 0~20mA(I4 module need) 35 0~10V
16 0~5A (I7 module need) 36 2~10V
16 0~500VAC(I8 module need) 37 0~20V
dPt Resolution
Four formats (0, 0.0, 0.00, 0.000) are selectable For thermocouples or RTD
inputs, only 0 and 0.0 are selectable, and the internal resolution is 0.1. For
linear input, if the value of PV or any parameter is probably greater than 9999,
format 0.000 is recommended.
0 / 0.0, /
0.00, /
0.000
SCL Signal scale low limit
Define scale low limit of input signal. It is also the scale of the low limit of
retransmission output. For example, to transform 1～5V input signal into
process value of 0～200.0, we shall set dPt=0.0, SCL=0, SCH=200.0 -9999～
+30000
SCH Signal scale high limit
Define scale high limit of input signal. It is also the scale of the high limit of
retransmission output. For example, to transform 0～5V input signal into
process value of 1000～2000, we shall set dPt=0, SCL=1000, SCH=2000.
Scb Input shift adjustment
Scb is used to compensate the error produced by sensor or input signal.
PV_after_compensation= PV_before_compensation + Scb. For example, for
the same input signal, if the measured temperature PV is 500.0℃ when
Scb=10.0, then PV should be 510.0℃.
-1999～
+4000
FILt Input filter
The value of FILt will determine the ability of filtering noise. When a large value
is set, the measurement input is stabilized but the response speed is slow.
Generally, it can be set to 1 to 3. If great interference exists, then you can
increase parameter “FILt” gradually to make momentary fluctuation of
measured value less than 2 to 5. When the instrument is being metrological
verified, “FILt” s can be set to 0 or 1 to shorten the response time.
0～40
OPt Output type
0-20: 0～20mA linear current retransmission output;
4-20: 4～20mA linear current retransmission output.
Addr
Communication
address
In the same communication line, different instrument should be set to different
address.
0～80
bAud Baud rate
The range of baud rate is 1200 ~ 19200 bit/s. Can be set to 4800, 9600 or
19200.
0～
19200

Yudian(H.K.)AutomationTechnolog y Co.Ltd.
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Email:[email protected]
Tel:+852‐27708785Fax:+852‐27708796
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9
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TERMINAL LAYOUT AND WIRING
Wiring graph for instruments with dimension A, A2, B, C, C3, E or F
The compensation wires for different kinds of thermocouple are different, and should be directly connect
to the terminals. Connecting the common wire between the compensation wire and the terminals will
cause measurement error.
Note:
- Linear voltage signal with its range below 500mV can be inputted from terminals 19+ and 18-.
- 0～5V, 1～5V or 0～10V signal can be inputted from terminals 17+ and 18-.
- 4～20mA current signal can be converted to voltage signal with an 250 ohm external resistor and then
inputted from terminals 17+ and 18-.
- If I4 module is installed in MIO slot, current signal can also be inputted from terminals 14+ and 15-, and
2-wire transmitter can be inputted from terminals 16+ and 14-.

Yudian(H.K.)AutomationTechnolog y Co.Ltd.
Website:http://www.yudian.ushttp://www.yudian.com.hk
Email:[email protected]
Tel:+852‐27708785Fax:+852‐27708796

10
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Wiring graph for D dimension（72mmX72mm）instruments
Note:
- Linear voltage signal of range below 500mV should be inputted from terminals 13+ and
12-,
- Signal of 0～5V, 1～5V or 0～10V should be inputted from terminals 11+ and 12-.
- 4～20mA linear current signal can be converted to 1～5V voltage signal with a 250 ohm
resistor and inputted from terminals 11+ and 12-.
Wiring graph for D2 dimension（48mmX48mm）instruments
Note:
- Linear voltage signal of range below 500mV should be inputted from terminals 8- and
9+-,
- D2 dimension not support 0～5V or 1～5V input. However, 0~5V or 1~5V can be
converted to 0~500mV or 100~500mV by connecting external resistor (it belong to
custom made order, please contact our sales or agent)
- 4～20mA linear current signal can be converted to 100～500mV voltage signal with a
25 ohm resistor and inputted from terminals 8- and 9+.