PID Controllers

Features

• Initializing the controller integral to a desired value.
• Increasing the setpoint in a suitable ramp.
• Disabling the integral function until the PV has entered the controllable region.
• Limiting the time period over which the integral error is calculated.
• Preventing the integral term from accumulating above or below pre-determined bounds.

Specifications

Element Type	Specification
Input	ONE UNIVERSAL Input Thermocouples : J,K,T,R,S RTD's : PT-100, PT-1000 DC mA : 0 – 20 mA, 4 – 20 mA (Maximum 12 Volts) DC mV : ± 50 mV, ± 100 mV, ± 200 mV, ± 250 mV DC Volts : ± 1V, ± 3.3V, ± 5V, ± 10V
Range	Refer 'table A''
Ambient	Compensation automatic, ambient 0-60 °C
Resolution	1 or 0.1 or .01 or .001 programmable
Display	Super bright in 4 + 4 format , with NO BLINK programming technique Upper 4 digits 0.5" red colour Lower 4 digits 0.39" green colour
Ananciation L.E.D's	7 L.E.D.'s , 3 mm , multi colour, 3 for O/P's, 1 each for A/M, Alarm, Profile, Soak Time
Parameter Setting	By soft touch, Elegant, Sturdy membrane keys & User friendly menu driven software
Outputs	THREE, Programmable outputs with modular attachments Relay module SSR module 4-20 mA module Retransmission module
Note	Output modules are predefined All three outputs can be assigned as relay or SSR or 4-20 mA, this means at a time either 3 relays or 3 SSR's or 3 4-20 mAs outputs also available
INPUT Control Outputs Rating	Relay SPST 230V / 3 Amp, 12 volts DC pulses for , 4-20 mA (Load 450 ohms)
CONTROLS
Control Action	PID / On-OFF / TP PID P = Propotional Band = 1.0 to 999.9 units adjustable I = Integral = 0 to 3600 ( 0-1200) seconds adjustable D = Derivative = 0 to 500 seconds adjustable CT = Cycle Time = 0.5 to100 seconds adjustable On-OFF Hysteresis = 1 to 99 units adjustable Time Proportional = 0.1 to 100.0 units adjustable
Control Action Assign	PID for O/P 1 and O/P 2 ON-OFF for O/P 1, O/P 2 , O/P 3 T/P for O/P 1, O/P 2 , O/P 3
Control Modes	Heat / Cool / Heat-Cool
Overshoot Control	Provided
Soak Timer	Assigned for O/P 2 or O/P 3, Soak Timer programmable (HH-MM or MM-SEC) Set Point Start up or Power on start up
Manual Output	Provided, 0 to 100%
ALARMS	Assigned for O/P2 and O/P3 Alarm Types : Low / High /Band /Deviation / End of Profile Alarm Acknowledge : Latchable / Unlatchable Alarm Inhibit : Available
Retransmission	4-20 mA or 20-4 mA or 0-20 mA or 20-0 mA programmable, Non-isolated, Retransmission assign for O/P 2 and O/P 3 Provided on request
Communication	RS485, 2-Wire, Half duplex RS485 MODBUS on request, MODBUS RTU or ASCII Baud Rate Programmable 1200/2400/4800/9600, contact factory for higher Baud Rates
PROFILER	2 Profile Programmes / 8 Segments Each Each segment programmable for either RAMP or SOAK Profiler can be configured as : - RAMP/SOAK - RAMP/RAMP - SOAK/SOAK - SOAK/COOL Soak Time programmable in HH-MM , MM-SEC Overshoot control during profile Event on End of segment and / or End of profile