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Main Feature 4:
Control System with Higher
Functionality
High sampling speed,
Current Transformer input for better control and performance.
Direct connection of G3ZA Multi-channel Power Controller provides optimum
cycle control for high accuracy regulation with minimal noise.
High Speed Sampling
High sampling cycle of 250ms per channel
Ideal for application requiring quick response to temperature increases.
High Current Transformer
Input
Heater Burnout alarms up to 100A.
Ideal for controlling high-capacity heaters.
SSR failure alarms and heater overcurrent alarms can also be used.
Multi-Input
EJ1 Unit accepts thermocouple,
platinum-resistance thermometer, and analogue input, thus reduce stock
inventory and selection worries.
Output ON Scheduling
The ON time for each output can be reduced
to ½ or ¼ of the control period to limit the number of outputs in the Unit
that are being turn ON simultaneously.
The Output ON scheduling function reduces
the overall current consumes by the heaters, thus reducing the size of
power supply.
Optimum Cycle Control
Eight unit of G3ZA Multi-channel Power
Controller can be directly connected to one EJ1 unit to create
high-accuracy regulation with low noise to ensure optimum cycle control.
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Conventional Control Method |
Optimum Cycle Control Method |
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Cycle control (zero
cross ON/OFF control)
• The control
cycle is long, and so control performance is poor.
• Little noise is generated.
Phase control
• Response is fast, and so high-accuracy temperature control is
possible.
• Higher harmonics and noise are issues.
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Optimum Cycle Control
(high accuracy zero cross control)
• ON/OFF is determined every half cycle.
• Noise generation is suppressed and response is fast, enabling
high-accuracy temperature control.
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Compliance to RoHS
The EJ1 has already eliminated the use of
the six hazardous chemical substances, including lead and mercury in
response to RoHS directive.
Next >> Demo on
Setup Using CX-Thermo
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OMRON IA Global
