User manual

Current Transformer
100
These parameters are active if EMI-420 ( CT ) Input Module is
plugged in Module-1 socket.
V
Current transfer ratio for Module-1. It can be adjusted from 0 to 100
Example : For 100:5A type current transformer ;
This parameter must be = 100/5 =
Calculating set value for heating failure
Set = [(Current value without failure + Current value
with heater failure )] / 2
Control Output
200VV
7
8
CT
MODULE-1
1kW
Heater
For example ; If there is a system with one heater (200V and 1kW ) ;
In normal conditions current in heater = 1000 / 200 = 5A
If there is a heater failure no current will be on the heater (0 A).
Then Set value must be adjusted = (5+0) /2 =2.5A
V
EMI-420
If a system operates with PID control form, heating minimum output time
must be minimum 0.2 sec.
For correct measurements with EMI-420 ( CT) Input Module in Module-1
socket, heating output mut be active minimum for 0.2 sec (200 msec).
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