UATC-20

The UATC-20 Temperature Control Module is a fully microprocessor based unit which has been intelligently designed for Hot Runner Mold Temperature Control Applications where advanced operational and diagnostic features are needed.

The well developed circuitry of the UATC-20 produces a module which is simple to operate, rugged and dependable. The advanced diagnostic functions (which are operator programmable to the specific hearing zone) provide a snapshot of the operation of that specific heating zone.

Some of the exceptional Analytical functions found on the UATC-20 are:

A diagnostic snapshot of the heater operating characteristics are revealed when the current sensing feature is employed.
Detects and alerts to the potential dangerous conditions of current leaking to ground.
If power to the heater exceeds a selected value, the module will alarm and disable power to the heater preventing damage.
Advanced circuitry detects, alarms and disables power to the heater in the event the triac fails in a shorted condition.
Heater diagnostics can be performed by checking the average amperage draw of the heater.
In the event of a thermocouple, open or shorted condition, the module will automatically go into “APO” (Average Power Output) mode, allowing operations to continue by providing the same average power to the heater as applied prior to the failure.
Real time diagnostics fault detection & error display.
Audible alarm warns in the case of an error condition.
A diagnostic snapshot of the heaters operating characteristics are revealed when the current sensing feature is employed.

The UATC-20 Temperature Control Module is a fully microprocesser based instrument, which has been intelligently designed for Hot Runner Mold temperature control applications where advanced operational and diagnostic features are needed. The well developed circuitry of UATC-20 produces a full featured module which is simple to operate and will stand up to rigors of harsh environments.

An interesting feature of the UATC-20 is its capacity to provide a snapshot of operation of the heating zone by displaying amperage draw. The UATC-20 also has the ability to adjust maximum amperage draw to a point just above maximum wattage of the heater. When the controller detects a current which is greater than that value, it will sound an alarm so the offending components can be replaced. This improvement allows for greater operating and maintenance efficiency by detecting leakage in mold wires, cables, heaters, etc. at an early stage.

The Circuitry of the UATC-20 provides improved protection to the mold in the event that the triac becomes shorted. This circuitry enables the controller to turn off the power to the heater if it detects continued power draw when the temperature is well above the set point.

ITC has addressed one of the most serious and costly problems of Hot Runner Temperature Controllers by incorporating of our Anti-Arching Feature. This enhancement can greatly reduce the probability of damage to either the main frame or module if a module is accidentally changed while the main frame is under power. This feature alone can save molders lot of money for repair or replacement.

FEATURES
All features and parameters are fully selectable from the menu feature on the keypad.

Amperage measuring & display.
Percentage of power display.
Automatic or manual operation.
Anti-arching feature.
Boot & Standby.
“F” or “C temperature ranges.
“J” or “K” thermocouple types.
Panel lock-out of selectable features.
APO (average power output) in thermocouple failure condition.
Automatic test of “LED” segments.
Operating voltage 240vac, 50/60 Hz, or 120vac
Cold junction compensation.
Zero crossing triac.
This module operates in both of ITC’s 15 & 30 amp main frames.
Ground Fault Detection – detects if there is a short to ground in the heating circuit. This is selectable range.
High Amperage Alarm – detects if the amperage draw to the heater exceeds a selectable value which can be
Entered from the menu.
Thermocouple – Open, Shorted & Reversed. This is indicated by both an error message and audible alarm.
Triac – Open and Shorted condition. This is indicated by both an error message and audible alarm.
High & Low Temperature Condition – Activates when the process temperature varies more than 30° F from set point. This is indicated by both an error message and audible alarm.
Blown Fuse – This is indicated when the blown fuse “LED” comes on

SAFETY FEATURES:
High Voltage Thermocouple Protection – Fused
Module High Current Protection – Fused
Power Disabled to Heater when:

Traic is Shorted
Heater is Open
High Amperage Condition
Triac is Open
Over Temperature Condition

Audible Alarm

Voltage: 208 to 240vac, single phase
Current: 15 amps
Frequency: 50/60 Hz
Wattage: 3600
On/Off Key: Auto Latching (stays on last setting if power is lost)
Physical Configuration: Plugs in for easy interchangeability
Compatibility: Compatible with “G” Series housings
Size: 2” Wide, 7” High, 7-1/2” Deep
Weight: 1-1/2 #
DC Power Supply: Internally generated regulated and compensated
Module Power Usage: Less than 5 watts, excluding load
Set point Range: 0o to 999o F (537o C)
Control Accuracy: +/- 1o F (0.5o C) dependent on total thermal system
Calibration Accuracy: Better than 0.2% of full range
Operating Temperature Range: 32 to 120 degrees F (0 to 48° C)
Thermocouple: Type J, or Type K grounded or ungrounded
External Thermocouple Resistance: High impedance potentiometer input allows long distance T/C wiring
Output Drive: Internal solid state triac, zero crossing AC pulses
Ground Fault Sensitivity: 60 to 180 mA, default 120 mv.
High/Low Temperature Alarm: Factory set @ +/- 30 degrees F (16° C)
Overload Protection: Fuses on both sides of AC line
Transient Protection: dv/dt and transient pulse suppression
Shorted Triac Heater Protection: Highly sensitive, fast acting relays cut power to load
Power Line Isolation: Optically and transformer isolated from AC lines. Isolation voltage greater than 2500 volts
Display: Dual LED displays, 3-digit, 7-segment
Manual Mode: Maintains constant output power to within 1% of manual set power. Adjustable from 0 to 100%
Soft Start: Variable stepped voltage, phase fired
Soft Start Duration: 5 Minutes (Adjustable – 0 to 20) up to 212 degrees F (100° C)
Soft Start Override: Temperature 212o F (100° C)
Operational Modes:
– Soft Start precedes Auto Mode
– Thermocouple break overrides Soft Start and Auto Mode
– Reversed or shorted thermocouple overrides Soft Start and Auto Mode
– Manual Mode overrides thermocouple break, reversed, shorted thermocouple and Auto Mode.
– Output is disabled during all fault conditions.
Cold Junction Compensation: Automatic, better than 0.02oF/Fo (0.01oC/C)
Open Thermocouple Protection: Automatically disables power to heater or Average Power Output (APO). Selectable
Reversed Thermocouple Protection: Automatically disables power to heater
Shorted Thermocouple Protection: Automatically disables power to heater or Average Power Output (APO). Selectable
Warranty: 2-Years