Megmeet MCCD Series, Quick Reference Manual

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Sensor type
and
temperature
range
Pt100
－
150
℃～
600
℃（－
238
℉～
1112
℉）
JPt100
－
150
℃～
500
℃（－
238
℉～
932
℉）
Cu100
－
30
℃～
120
℃（－
22
℉～
248
℉）
Cu50
－
30
℃～
120
℃（－
22
℉～
248
℉）
Ni120
－
80.0
℃～
280.0
℃（－
112.0
℉～
536.0
℉）
Thermal resistance Input range±0.5
％
7.2.4 TC input channel specifications
Item
Index
Input single Thermocouple
type
K
、
J
、
E
、
N
、
T
、
R
、
S
、
B
Output
method Transistor
output with
open gate
Loop power voltage
：
5V
～
24V
；
Max.
Power voltage of loop
：
30V
；
Loop
current
：
0.3A/24Vdc
；
Leakage current
when open
： ＜
0.1mA/30Vdc
；
Min.
load
：
5mA
（
5Vdc
～
24Vdc
）
The sampling period
About 100ms
Temperature control cycle
1
～
100
，
unit 1s
，
The specific value is
determined by the characteristics of
the temperature control object
Control method
ON/OFF control
，
Hand control
，
single
PID control
Rate
temperature
range
K type
－
100
℃～
1200
℃（－
148
℉～
2192
℉）
J type
－
100
℃～
1200
℃（－
148
℉～
1112
℉）
E type
－
100
℃～
850
℃（－
148
℉～
1562
℉）
N type
－
100
℃～
1200
℃（－
148
℉～
2192
℉）
T type
－
200
℃～
300
℃（－
328
℉～
572
℉）
R type 0
℃～
1600
℃（
32
℉～
2912
℉）
S type 0
℃～
1600
℃（
32
℉～
2912
℉）
B type 400
℃～
1800
℃（
752
℉～
3272
℉）
Accuracy
Thermocouple Input
range ±0.3
％ ，
Ambient
temperature compensation error<=2
℃
Thermal
resistance
Input range ±0.5
％
Isolation
Channels are isolated from each
other
8. Common problems and solutions
When the module cannot work normally, please check in turn:
(1) The connection of power lines and the status of related switches
and protective appliances to ensure that the module has been reliably
supplied;
(2) Whether the connection of user terminals is firm;
If the above inspection is still unable to work, you can refer to the
following table.
phenomenon Possible reason Countermeasures
RUN and ERR are
OFF
Out of voltage or low
voltage
Check power supply
condition and
exclude
The power switch is
off or the fuse is
blown Check the condition
of switches, wires or
fuses to exclude
them
Abnormal power
connection
Power plate damage Check and confirm
whether the voltages
between 24V+ and
24V- terminals are in
normal range
RUN and ERR are
flashed intermittently
in the same time The power supply is
unstable
The
module is
damage
RUN is OFF Shut down remotely
by upper computer
equipment Make the upper
computer start up
remotely
System error outage Check by assistant
ERR single light is
ON System error outage Check with an
assistant and consult
the errata manual
1. Warranty scope refers to the programmable controller body.
2. The warranty period is 18 months. If the product breaks down or is
damaged during normal use, our company will repair it free of charge.
3. The warranty period starts from the date the product is manufactured.
Machine code is the only basis for judging the warranty period.
Equipment without machine code shall be treated as under warranty.
4. Even within the warranty period, a maintenance fee will be charged
if:

Failure of the machine caused by failure to operate in
accordance with the user's manual.

Damage to machinery caused by fire, flood, abnormal voltage,
etc.

Damage caused when a programmable controller is used for
abnormal functions.

Self-disassemble the programmable controller.
5. The service fee shall be calculated according to the actual cost. If
there is another contract, the contract shall take precedence.
6. If you have any questions, please contact the agent or our company
directly.
SHENZHEN MEGMEET CONTROL TECHNOLOGY CO.
，
LTD
Add
：
floor 5, tower B, qinghua information port, langshan road, north
district, science and technology park, nanshan district, shenzhen
Tel
：
400-6662163
Fax
：
(+86)0755-26897197
Zip code
：
518067
Web
：
www.megmeet.com