PC900 Programmable Controller
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Temperature & Process Control

PC900

Programmable Controller

The PC900/PC410 series provides 10 programs with 16 segments each, output power limiting and timed event output for laboratory furnaces and environmental test equipment.

Key Specifications

Model sizes
PC900 96×96, PC400 48×96, PC410 96×48
Outputs
Relay, logic level, analog, single/three-phase zero-crossing and phase-angle outputs
Control algorithm
PID control with auto-tuning
Typical applications
Laboratory furnaces, environmental chambers and process control

Technical Detail

Technical Details

The PC900/PC410 programmable controller provides 10 time-temperature profiles with up to 16 steps per pattern, segmented output power limiting and time-event output. It is suited to laboratory furnaces, environmental test equipment and process systems that need repeatable multi-step profiles.

The controller uses PID control with auto-tuning for stable temperature and process control. It supports relay, logic, analog, SCR zero-crossing and SCR phase-angle output options, plus optional real-time clock, print recording, remote setpoint, process-value transmission and setpoint transmission.

Coding

Basic instrument/Output 1/Output 2/Alarm 1/Communication/Options
123456
1. Basic Instrument
PC900Universal PID controller, 96 x 96 x 100 mm
PC400Universal PID controller, 48 x 96 x 100 mm, vertical panel format
PC410Universal PID controller, 96 x 48 x 100 mm, horizontal panel format
2. Output 1
0No output
RRelay output, normally-open contact, 3A / 250VAC
LLogic output, 20V / 20mA, for driving SSR modules
DAnalog output: 0-10mA, 4-20mA, 0-20mA, 0-5V, 1-5V or 0-10V
T1Single-phase SCR zero-crossing trigger output
T3Three-phase SCR zero-crossing trigger output
Y1Single-phase SCR phase-angle trigger output
Y3Three-phase SCR phase-angle trigger output

Three-phase zero-crossing or phase-angle output is available only with the 96 x 96 x 100 mm PC900 format.

3. Output 2
0No output
RRelay output, normally-open contact, 3A / 250VAC
LLogic output, 20V / 20mA, for driving SSR modules
DAnalog output: 0-10mA, 4-20mA, 0-20mA, 0-5V, 1-5V or 0-10V
T1Single-phase SCR zero-crossing trigger output
4. Alarm 1
0No alarm output
RRelay alarm output, normally-open contact, 3A / 250VAC
5. Communication
0No communication
232RS232, 3-wire, isolated, communication distance up to 15 m
485RS485, 2-wire, isolated, communication distance up to 1.2 km
6. Options
0No additional option
QP1616-step program control
ClkReal-time clock
PrtPrint recording function
RemRemote analog setpoint
PVTProcess-value transmission
SVTSetpoint transmission

Example: PC900/R/R/0/232 is a 96 x 96 x 100 mm controller with relay output 1, relay output 2, no alarm 1 and RS232 communication.

Example: PC410/L/0/R is a 96 x 48 mm horizontal controller with logic output 1, no output 2 and relay alarm 1.

Program Control and Optional Functions

10 patternsStore multiple profiles for different recipes or operating procedures.
16 steps eachConfigure ramp, soak and cooling steps inside each pattern.
Loop controlRun 1-200 loop cycles or continuous loop cycling.
Time-event outputSynchronize relays or external devices with selected program steps.

Segmented output power limiting is useful for high-temperature furnaces using molybdenum, tungsten or silicon-molybdenum heating elements, where low-temperature full-power output can damage the heater. Optional print recording, analog remote setpoint, PV/SV retransmission and non-linear correction support more specialized process systems.

Panel Description

PC900 panel key and indicator layout
PAR/SETParameter setting and confirmation key.
AUTO/HANDSelects automatic or manual operation.
PTNSelects the program pattern number.
RUN/PROGStarts program operation.
SET/PROGProgram parameter setup.
DISP/SELECTChanges the lower display between SV, MV and TIME.
OUT1 / OUT2 / OP3LED indicators light when the corresponding output is active.
STEP / PTNDisplays the current program step and pattern number.
PROFILEShows ramp up, soak/constant or ramp down status during profile control.
AT / RUN / MAN / COMIndicates auto-tuning, program run, manual operation and active communication status.

Dimensions and Mounting

PC900 dimensions PC900 mounting dimensions

Wiring

Rear Terminal Layout

PC900 rear terminal layout

Electrical Connection

PC900 electrical connection

Sensor Power and Input Wiring

PC900 auxiliary sensor power and input wiring

Communication and Output Module Wiring

PC900 communication and output module wiring

Expanded Output Wiring Example

PC900 expanded output wiring example

Specifications

InputThermocouples: J, K, E, R, S, T, B, N
RTD: Pt100, Cu50
Analog input: 0-20mA, 4-20mA, -10.0-50mV, 0-10V
OutputRelay, max. 250VAC / 3A
Logic output for SSR drive
SCR zero-crossing trigger output
SCR phase-angle trigger output
Analog output: 0-10mA, 4-20mA, 0-20mA, 0-5V, 1-5V, 0-10V
Accuracy±0.2% full scale + 1 digit
Sample rate125 ms
Program control10 profile patterns
Up to 16 steps per pattern
1-200 loop cycles or continuous cycling
AlarmsRelay output, max. 250VAC / 3A
High, low and deviation alarm modes
Control actionON/OFF control
PID control with PID auto-tuning
CommunicationRS232, 3-wire
RS485, 2-wire
DisplayUpper 4-digit high-brightness green LED
Lower 4-digit high-brightness red LED
Status LED indicators
Power supply85-264VAC, 45/60Hz
EnvironmentAmbient temperature: 0-50°C
Relative humidity: ≤85%
DimensionsPC900: 96 x 96 x 100 mm
PC400: 48 x 96 x 100 mm
PC410: 96 x 48 x 100 mm

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