MULTISPAN TC-443 - User Manual

The TC-443 is a temperature controller that offers both heating and cooling control, along with alarm functionalities. It supports PID control with auto-tuning, as well as ON-OFF control for both heating and cooling. The device can manage up to three output relays for control and alarm functions. Its primary function is to monitor and maintain a set process value (PV) relative to a desired set value (SV) using a J-type sensor.

Important Technical Specifications

Power Supply:

Supply Voltage: 100 to 270V AC, 50-60Hz
Power Consumption (VA Rating): Approximately 4VA @ 230V AC MAX

Environmental Conditions:

Operating Temperature: 0°C to 55°C
Relative Humidity: Up to 95% RH (non-condensing)
Protection Level: IP-65 (Front side) as per IS/IEC 60529:2001

Input Specification:

Input Type: J
Input Range: 0 to 400°C
Resolution: J = 1°C
Indication Accuracy: ±1% of FSD ± 1°C (FSD: Full Scale Deflection)

Display and Keys:

Display: Upper: 3 digit, 7 segment, 0.63" (RED/WHITE); Lower: 3 digit, 7 segment, 0.30" (Green)
Keys: SET, INC, DEC, ENT

Dimensions:

Size: 48 (H) x 48 (W) x 95 (D) mm
Panel Cutout: 45 (H) x 45 (W) mm

Control Method:

Heating: PID control with Auto-Tuning, ON-OFF control
Cooling: BL.TP (Blower Time Proportional), ON-OFF control
Alarm: Low, High, Absolute Low, Inband, Outband, Absolute Outband

Output Specification:

Relay: 3 Nos
Relay Type:
- 1st relay: 1C/O (NO-C-NC)
- 2nd relay: (NO-C)
- 3rd relay: (NO-C)
Rating:
- 1st relay: 10A, 230V AC / 28V DC
- 2nd relay: 5A, 230V AC
- 3rd relay: 5A, 230V AC

Usage Features

Key Operation:

Entering Parameter Setting: Press SET key.
Start/Stop PID Auto Tuning: Press SET + UP keys for 6 seconds.
Going to Factory Setting Mode: Press UP + DOWN keys for 3 seconds.
Setting Parameter Value and Moving to Next: Press SET key.
Incrementing Parameter Value: Press UP key.
Decrementing Parameter Value: Press DOWN key.
Saving and Exiting Parameters: Press ENT key.

Display Features:

The upper display shows the Process Value (PV) in RED/WHITE.
The lower display shows the Set Value (SV) in Green.
Status LEDs indicate:
- A: Control output 1 indication
- B: Control output 2 indication
- C: Control output 3 indication
- D: Auto tuning "ON" indication
- E: Blinking DP will indicate delay time count

Error Display:

OPn: Sensor is not connected, over-range condition, or sensor break.
SrE: Sensor connection is reversed.
- Corrective Action: Check sensor and input wiring; replace sensor if needed. Contact company if the problem persists.

Factory Setting:

To enter, press UP + DOWN keys for 3 seconds.
FCS YES/NO: Press ENT to apply factory set values or escape without applying.

Parameter Setting Modes:

Set Point Setting: Allows configuration of SP1, SP2, and SP3, along with associated low and high set points (L02, HI2, L03, HI3) and alarm modes (ALM2, ALM3).
Basic Configuration: Configures output modes (0E1, 0E2, 0E3), alarm types (AL3), and set modes (S2M, S3M). It also allows setting of low and high limits (SLL, SHL) and offset (OFS). Password protected (PAS 73).
Control Parameter Setting: Configures PID parameters (Pb, It, dt, Ct), manual reset (Mr), cooling parameters (CPb, C-ON, C-OFF), and relay delay times (r1d, r2d). Password protected (PAS 37).

Auto-Tuning Function:

Automatically computes and sets Proportional band (Pb), Integral time (It), Derivative time (dt), and cycle time (Ct) based on process characteristics.
The "TUNE" LED will turn ON during auto-tuning.
If power is lost during auto-tuning, it will restart on the next power ON.
To start/stop auto-tuning, press SET key for 6 seconds.

Control Functions:

ON-OFF Control (Heating): Output RLY-ON when PV is below SV-HYST, RLY-OFF when PV is above SV.
ON-OFF Control (Cooling): Output RLY-ON when PV is above SV+HYST, RLY-OFF when PV is below SV. Includes delay time.

Alarm Operation:

Low Alarm: RLY-ON when PV is below SET-HYST, RLY-OFF when PV is above SET.
High Alarm: RLY-ON when PV is above SET+HYST, RLY-OFF when PV is below SET.
Inband Alarm: RLY-ON when PV is within SET±HYST, RLY-OFF when PV is outside SET±HYST.
Outband Alarm: RLY-ON when PV is outside SET±HYST, RLY-OFF when PV is within SET±HYST.
Absolute Low Alarm: RLY-ON when PV is below SET, RLY-OFF when PV is above SET.
Absolute Outband Alarm: RLY-ON when PV is outside SET, RLY-OFF when PV is within SET.

Maintenance Features

Safety Precautions:

Always turn OFF power before wiring to prevent electric shock.
Do not touch terminals when power is supplied.
Use appropriate wiring (1mm² or greater cross-section for power, 1.5kV insulation capacity).
Use thermocouple compensation wires for lead extensions.
Install a circuit breaker or mains switch between the power source and supply terminal for easy ON/OFF.
Operate and store the instrument within specified ambient temperature and humidity ranges.

Mechanical Installation Guidelines:

Prepare the panel cutout with specified dimensions.
Fit the unit into the panel using the provided clamp.
Avoid proximity to heating sources, caustic vapors, oil steam, or other unwanted process byproducts.
Use specified crimp terminals (M3.5 screws) and tighten screws with a torque of 1.2 N.m.
Do not connect anything to unused terminals.

General Maintenance:

Regularly clean the equipment to prevent blockage of ventilating parts.
Clean with a soft, clean cloth; do not use isopropyl alcohol or other cleaning agents.
The fusible resistor must not be replaced by the operator.