Full Gauge Controls TC-940Ri plus Manual

1. DESCRIPTION
The TC940Ri plus is a temperature controller for frozen products that manages the defrost
start and end cycles only when necessary, based on the temperature of the evaporator. It has a
timing function for collection of the residual refrigerant gas before defrost starts, improving
performance of the refrigeration cycle and reducing power consumption. Its fourth output is used
to trigger an alarm or turn off lamps.
It also features a configurable digital filter, which increases the response time of the S1 sensor to
avoid activating the compressor by quick temperature changes, and a serial output for
communication with the Sitrad - management software via internet.
The TC940Ri plus also has a configurable digital input used for performing one of the
following functions:
-Perform external defrost synchronism;
-Change the setpoint for night mode;
-Generate a visual and audible alarm to indicate the opening of the freezer door, for example;
-Inhibit control functions (standby mode).
*In the F43 description in this manual, each of the above functions is defined in detail.
Product complies with UL Inc. (USA and Canada) and
2. APPLICATIONS
• Refrigerated chambers
• Display freezers
4.2 - PARAMETERS TABLE
Fun
[F01]
Access code (123)
[F02]
Controller operating mode
[F03]
Control differential (hysteresis) in refrigeration
[F04]
Control differential (hysteresis) in heating
[F05]
Offset indication of ambient temperature
[F06]
Offset indication of evaporator temperature
[F07]
Minimum setpoint allowed to the end user
[F08]
Maximum setpoint allowed to the end user
[F09]
Control delay at start (energizing)
[F10]
Defrost type (Refrigeration)
[F11]
Condition for starting defrost (Refrigeration)
[F12]
1
Interval between defrosts (Refrigeration)
[F13]
Interval between defrosts (Heating)
[F14]
Maximum time in refrigeration 2
[F15]
Temperature in the evaporator for defrost start (Refrigeration)
[F16]
Time of pre-defrost (Refrigeration) 2
[F17]
Time for gas collection in defrost (Heating/Refrigeration)
[F18]
Defrost at start (Heating/Refrigeration)
[F19] Temperature in the evaporator (S2) for end of defrost (Refrigeration)
[F20] Maximum defrost time (for safety) (Refrigeration)
[F21] Defrost time (Heating)
[F22] Fan on during defrost (Heating/Refrigeration)
[F23] Delay for first defrost (Heating/Refrigeration) 1
[F24] Locked temperature indication (S1) during defrost (Heating/Refrigeration)
[F25] Draining time (dripping of defrost water (Refrigeration)
Fan and compressor operating mode after drainage
[F26]
[F27] Evaporator temperature (S2) for fan return after drainage (fan-delay)
[F28] Maximum time for fan return after drainage (fan-delay)
[F29] Maximum time f/ compressor return after drainage
[F30] Fan operating mode during Refrigeration/Heating
[F31] Time of fan on 6
6
[F32] Time of fan off
Fan stop for high temperature in evaporator
[F33
Hysteresis for fan return (after stopping for high temperature in evaporator)
[F34]
Low ambient temperature alarm 7
[F35]
[F36] Low ambient temperature alarm hysteresis 7
[F37] High ambient temperature alarm 7
[F38] High ambient temperature alarm hysteresis 7
[F39] Alarm inhibition time when energizing the instrument
[F40] Alarm inhibition time after draining
[F41] Alarm inhibition time for open door
[F42] Alarm inhibition time for low/high temperature
[F43] Digital input operating mode
[F44] AUX output operating mode
[F45] Closed door time for turning off lamp (0=[,no])
[F46]
Closed door time to activate the nighttime setpoint (0=[,no])
[F47]
Minimum time for compressor on
[F48]
Minimum time for compressor off
[F49]
Time of compressor on in case of error in sensor S1
[F50]
Time of compressor off in case of error in sensor S1
Intensity of the digital filter applied to the ambient sensor (S1)
[F51]
[F52] Time for keylock
[F53] Control functions shutdown
[F54] Address in RS-485 network
TC-940Ri plus
DIGITAL CONTROLLER FOR
REFRIGERATION (E) AND WITH DEFROST
WITH ALARM OUTPUT
Ver.02
NSF (EUA) .
Description
2
3
4
4
5
8

3. TECHNICAL SPECIFICATIONS

Supply voltage: 12 Vdc +/- 10% Control
Temperature: -50ºC to 75ºC / -58°F to 167°F
Operating temperature: 0ºC to 50 ºC / 32°F to 122°F
Resolution: 0.1 ºC from -10ºC to 75ºC, 1ºC in the rest of the range / 1°F over the entire range.
Operating humidity: 10 to 90% RH (without condensation)
Maximum load currents: (outputs)
COMP: 12(8)A/240 Vac 1 HP (compressor, solenoid valve or breaker)
FANS: 5(3)A/240 Vac 1/8 HP (evaporator fan)
DEFR: 5(3)A/240 Vac (defrost through resistance or hot gas).
AUX: 3A/240 Vac resistive load (external alarm, lamp activation, cycle reversing valve).
Dimensions: 71 x 28 x 71 mm
4. CONFIGURATIONS
4.1 - Setting the control temperature (SETPOINT)
Press the @ key for 2 seconds until the message
it. The working temperature for daytime mode will appear (setpoint 1). Use the
change the value and, when ready, press the
After setpoint 1 temperature has been set, the message[SP2]is displayed, and then the working
temperature for nighttime mode (setpoint 2) will be shown. Use the same procedure to change the value
@
and, when ready, press the
CELSIUS FAHRENHEIT
Min Max Unit Stantard Min Max Unit Stantard
-99 999 - - -99 999 - -
0 2 - 0 0 2 - 0
0.1 20.0 °C 1.5 1 36 °F 3
0.1 20.0 °C 1.5 1 36 ºF 3
-20 20.0 °C 0.0 -36 36 ºF 0
-20 20.1 °C 0.0 -36 37 ºF 0
-50 75.0 °C -50 -58 167 ºF -58
-50 75.0 °C 75.0 -58 167 ºF 167
0 999 min. 0 0 999 min. 0
0 2 - 0 0 2 - 0
0 1 - 0 0 1 - 0
1 999 min. 240 1 999 min. 240
1 999 min. 240 1 999 min. 240
1 240 hrs 24 1 240 hrs 24
-50 75.0 °C -5.0 -58 167 ºF 23
0 90 min. 10 0 90 min. 10
0 90 min. 0 0 90 min. 0
- 0 0 1 - 0
0 1
°C 40.0 -58 167 ºF 104
-50 75.0
90 min. 45 0 90 min. 45
0
0 90 min. 30 0 90 min. 30
0 1 - 0 0 1 - 0
0
0 999 min. 0 999 min. 0
min. 0 no 60 min. 0
no 60
min. 10 0 30 min. 10
0 30
- 0 0 1 - 0
0 1
-50 75.0 °C 0.0 -58 167 ºF 32
0 30 min. 1 0 30 min. 1
0 30 min. 0 0 30 min. 0
0
0 2 - 0 2 - 0
min. 2 0 999 min. 2
0 999
min. 4 0 999 min. 4
0 999
°C 75.0 -58 167 ºF 167
-50 75.0
0.1 20.0 °C 2.0 1 36 ºF 4
-50 75.0 °C -50 -58 167 ºF -58
0.1 20.0 °C 1.0 1 36 ºF 4
-58
-50 75.0 °C 75.0 167 ºF 167
°C 1.0 1 36 ºF 4
0.1 20.0
min. 0 0 999 min. 0
0 999
min. 0 0 999 min. 0
0 999
99 min. 0 0 99 min. 0
0
0 999 min. 0 0 999 .min. 0
0 8 - 0 0 8 - 0
0
0 3 - 0 3 - 0
min. 60 0 999 min. 60
0 999
min. 90 0 999 min. 90
0 999
sec. 0 0 999 sec. 0
0 999
999 sec. 0 0 999 sec. 0
0
0 999 min. 20 0 999 min. 20
0 999 min. 10 0 999 min. 10
9 - 0 0 9 - 0
0
60 sec. 14-no 14-no 60 sec. 14-no
14-no
0 2 - 0 0 2 - 0
1 247 - 1 1 247 - 1
[set][SP1] appears on the display, then release
@ key to save.
key to save.
COMPONENT
E251415
> or < keys to