T 6495-2 EN TROVIS 6495 Industrial Controller SAMSON

T 6495-2 EN TROVIS 6495 Промышленный контроллер SAMSON

The TROVIS 6495-2 Industrial Controller is suitable for control of continuous, on/off or pulsing final control elements (pneu matic actuators with i/p positioners, additional electric actua tors, electric heating systems, refrigerating machines etc.) Special features 

 • Simple menu structure with plain text display

 • 4 analog inputs with filter, root extraction, function gener ation and measuring range monitoring

 • 4 digital inputs for set point switchover, constant output value, reversal of operating action, output tracking (DDC backup), ramps etc 

 • 3 analog outputs

 • 4 relay outputs for two on/off or three-step outputs or four limit alarms

 • 2 transistor outputs for fault alarms

 • 1 transistor output for fault alarms

 • Optional RS-232/USB and RS-485/USB interface boards for SSP and Modbus RTU

 • Degree of protection (front) IP 65

 • Plug-on screw terminals • Fixed set point control, one or two channels, internal/ex ternal switchover

 • Follow-up control, one or two channels, internal/external switchover

 • Ratio control

 • Cascade control, consisting of master and slave controller

 • Limiting or override control

 • Mixing control

 • Linking of input variables (addition, subtraction, multipli cation, division, mean value, minimum and maximum se lection) for feedforward control or control with 1 to 4 input variables (multi-component control)

 • Operation with up to four internal set points and one ex Fig. 1: TROVIS 6495-2 Industrial Controller ternal set point, either analog or via interface (SPC mode)

 • Set point ramp and output ramp

 • Split-range operation

 • Control mode selection P/PI or PD/PID

 • KP and TN adapted using the controlled variable, refer ence variable, manipulated variable or error signal

 • Adjustable limitation of integral-action component

 • Operating point preset by set point or digital input

 • Control signal limitation (fixed or floating according to an input variable)

 • Operation with code number or key locking by a digital input

Design and principle of operation 

 The TROVIS 6495-2 Industrial Controller has two inde pendently working controllers with shared input and output sections. By setting the functions and parameters, the controller can be adapted to a control task quickly. Preset basic configurations for each control type minimize setup work for standard appli cations. The controller can be set up using the keys on the housing or with the optional TROVIS-VIEW software without requiring any additional accessories. The controller settings are saved in a non-volatile memory, even when the power supply fails. The two internal controllers can be operated directly without switching. The plain-text dis play in English, German and French facilitates configuration and parameterization.

Control modes

− Fixed set point control, one or two channels, internal/ external switchover 

− Follow-up control, one or two channels, internal/external switchover 

− Ratio control (mixing control) 

− Cascade control, consisting of master and slave controller 

− Limiting or override control

Control

− Linking of input variables (addition, subtraction, multipli cation, division, mean value, minimum and maximum se lection) for feedforward control or control with one to four input variables (multi-component control) 

− Operation with up to four internal set points and one ex ternal set point, either analog or via interface (SPC mode) 

− Set point ramp and output ramp 

− Split-range operation 

− Control mode selection P/PI or PD/PID 

− KP and TN adapted using the controlled variable, refer ence variable, manipulated variable or error signal 

− Adjustable limitation of integral-action component 

− Operating point preset by set point or digital input 

− Control signal limitation (fixed or floating according to an input variable) 

− Operation with code number or key locking by a digital input

Inputs

− 4 analog inputs (AI1 to AI4

DIP switches at the side of the housing to select current or resistance inputs. The signal type is set depending on the configuration: − 0/4 to 20 mA − 0/2 to 10 V − Pt 100 or Pt 1000 resistance thermometer − Filter, root extraction, function generation and measur ing range monitoring − Input 2 additionally for potentiometers

− 4 digital inputs (DI1 to DI4) The digital inputs are controlled either by a 24 V DC volt age signal or by the transmitter supply using a floating contact. The digital outputs can only be controlled in groups, with DI1 and DI2 being the first group and DI3 and DI4 being the second group. Example: internal supply for digital inputs DI1 and DI2 and external supply for digital inputs DI3 and DI4. − Set point switchover, constan

t output value, reversal of op erating action, output tracking (DDC backup), ramps etc The following functions that have been defined over the C Controller, O Output and A General settings menus can be assigned to a digital input (see the 'Start-up and con f iguration' section): − Invert digital input − Switchover between internal set points − Switchover to external set point − Opening/closing cascade − Incremental/decremental set point change − Set point increase/decrease by constant − Start set point ramp − Hold set point ramp − Invert error signal − Control mode selection P(D)/PI(D) − Activate operating point for P/PD controller − Manual/automatic switchover − Hold output − Activate output tracking − Increase/decrease actual value − Activate constant output value − Start output ramp − Limit output rate − Lock control keys