Ht205
Programmable PID controller for industrial applications
 

 •  programmable controller (30 programs with 15 steps)
 •  PID / ON/OFF switching / 3-way control
 •  1 input, 7 outputs
 •  LAN interface (on the rear panel)
 •  2 communication lines EIA485
 •  2 digital inputs
 •  datalogger of process values (500 logs)
 •  datalogger of messages (200 logs)
 •  datalogger of ambient temperature (500 logs)
 •  starting a program by the keyboard
 •  starting a program by real-time clock
 •  3 years warranty
 •  guaranteed servicing

 How to operate the controller

• setting with the menu technique  • easy operation – long headings of parameters  • setting of language - Czech / English / German

 Controlling of stp point
 

• by program control (30 programs with 15 steps)  • maintaining the set point Starting a program  • starting a program by the keyboard  • starting a program by real-time clock  • by digital input  • through the communication line

 Controlling

The controller can operate the thermal system with the following types of controllingí:
 

PID control This mode is most used. It enables controlling to zero deviation. As an output it can be applied solid-state, relay, voltage or current output.
ON/OFF switching Simple way of controlling, it is not possible to reach the zero deviation.
3-way step controlling PID control with 2 outputs for adjusting of valves. Position of the valve is calculated from the time of transition.

 Dataloggers in the controller

The controller Ht205 stores data into 3 dataloggers:

 

Datalogger of process values stores:  • measured and set point value of the controller Ht205  • measured values from as many as 7 "Slave" controllers  • status of the external energy meter  • number of the running program Maximum amount of logs is 500.
Datalogger of messages stores:   • changes in the parameters setting in configuration     and operation level   • time of start / end or interruption of a program   • exceeding of alarm limits  •  ... Maximum amount of logs is 200.
Datalogger of ambient temperature stores:  • ambient temperature, it means the temperature     at which the controller works Maximum amount of logs is 500.

Stored values can be transferred though the communication line to PC.