Megmeet MCCD Series, Quick Reference Manual

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Switching current 2A
Switching power 1250VA/150W
ON response time 10ms
OFF response time 10ms
Output common terminal
Each common terminal is isolated
from each other
7. Analog input and output characteristics
7.1 Wiring method
The specific connection is shown in the following figure:
The wire method of analog input
The wire method of analog output
The wire method of thermal resistance input
The wire method of TC input
* Double stranded shielded cable access is recommended. Cables should be kept away
from power lines or other wires, user terminals, extension cables and interface
extension cables that may cause electrical interference.
* If the input signal fluctuates or there is electrical interference in the external wiring, it is
recommended to connect a smooth capacitor (0.1uf ~ 0.47uF/25V).
* It is recommended to use connection cables of less than 100m in length to reduce
measurement errors and noise interference.
7.2 Specifications
7.2.1 Current and voltage input channel specification
Item
Index
Conversion
speed
15ms/channel(Normal),6ms/channel(high-speed)
Analog
input
range
Voltage
input 0VDC
～
+10VDC
，
input
resistance 1MΩ
The attributes of each
channel can be set
individually
through
the X-Builder
programming software
Current
input 0mA
～
+20mA
，
input
resistance 250Ω
Digital output Scope:0
～
+2000
Resolu
tion
Voltage
input
5mV
Current
input
10uA
Accuracy Full load
±
1
％
Isolation Analog and digital circuits are not isolated
7.2.2 Analogy output channel specification
Item
Index
Conversion speed 2ms/channel
Analog
output Voltage output 0 ~ + 10 VDC, external load
impedance
≥
2 k Ω
Current output 0 ma ~ + 20 ma, external load
impedance
≤
500 Ω
Digital
output Voltage output Default setting: 0 ~ +2000
Current output Default setting: 0 ~ +2000
Resolution Voltage input 5mV
Current input 10uA
Accuracy Full load
±
1
％
Isolation Analog and digital circuits are isolated,
analog channels are not isolated.
7.2.3 Thermal resistance input channel specifications
Item
Index
Thermal resistance type
Pt100
、
Cu100
、
JPt100
、
Cu50
、
Ni120
Temperature control
output
Transistors and analog output are
configurable
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
Hand control
，
ON/OFF control
，
PID
control