User manual

114
For example ;if there is a system with three heater ( 200V and 1kW ) ;V
In normal conditions current in heater ; [1000 / 200 ]*3 = 5A *3 = 15A
If one of the heater is out of order, there is 5*2 = 10Acurrent on two heaters. Current
in heater failure is 10A. Then Set value must be adjusted (15+10) /2 =12.5A
If a system operates with PID control form, heating minimum control time
must be minimum 0.2 second.
For correct measurements with EMI-420 ( CT) Input Module in Module-2
socket, heating output must be active minimum for 0.2 sec (200 msec).
V
i
Control Output
200VV
1kW*3
Heater
910
CT
MODULE-2