PL-1 Thermostat User’s GuidePL-1 Thermostat User’s Guide Version 2.0 Heat Relay (Hr) 21 Firmware...

PL-1 Thermostat User’s Guide

Version 2.0

Firmware Version 2.0

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Table of Contents

Introduction................................................ 1

Conventions................................................ 2

Front Panel Layout........................................ 3

Thermostat Modes........................................ 4

Thermostat Mode Programming...................... 5

Set Point (SET 1)......................................... 6

Set Point 2 (SET 2)………………………………………….. 7

Temperature Units........................................ 8

Probe Display............................................... 9

Probe Alarms (P1A and P2A).......................... 10

High Alarm (AL—)......................................... 11

Low Alarm (AL_)........................................... 12

Brix Entry (Br) ............................................ 13

Pump-over Entry (Po)................................... 14

Pump-over Duration (PoD)............................ 15

Thermostat Configuration Menu (CC).............. 16

Thermostat Differential (Dif)............... 17

Unit Lock (UL)................................... 18

Cooling Probe (CP)………………………………. 19

Heating Probe (HP)........................... 20

Heat Relay (Hr)................................ 21

Heat Mode Disable (Hd)..................... 22

Data Entry Disable (ddE).................... 23

Power-up Delay (Pud)........................ 24

Show “OFF” (SoF)………………………………… 25

Network Installation (service function)............ 26

Wiring - Power, Solenoids & Probe………………….. 27

Wiring - Internal Cable Connections................ 28

Fuses and Service........................................ 29

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Introduction

Congratulations on your purchase of the model PL-1 TankNET® Thermostat, the wine industry’s only purpose built, network-enabled thermostat, featuring PowerLine Communications Technology!

Whether used stand-alone or networked to a TankNET® Web Server, the PL-1 thermostat is designed to provide years of reliable and accurate service. Key Features:

Digital Temperature Sensing (patent pending) X-Bus™ Expansion Technology (patent pending) Free Topology and PowerLine Networking NEMA-4X “cellar hardened” Enclosure Web Enabled via optional TankNET® server

For More Information and Technical Support

If you have technical questions that are not answered by this document you can get technical support from Acrolon Technologies, Inc. or one of its authorized distributors or service companies.

Acrolon Technologies, Inc. 19229 Sonoma Hwy. #256 Sonoma, CA 95476 Phone: 707-938-1300 Fax: 707-938-1342 E-mail: [email protected] Web: www.acrolon.com Printed in the United States of America Copyright ©2005 by Acrolon Technologies, Inc.

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Conventions

Please take a moment to review the following conventions which are used throughout this manual.

Button Press: To press a button means to press and release the button within a relatively short period of time.

Button Hold: To hold a button means to depress the button and to hold it down for a certain period of time.

SET button: This button is used to enter and exit programming mode and also to select the next programming parameter.

Entering programming mode: To enter program mode press (i.e., press and release) the SET button. Upon entering program mode, the set point annunciator (“SET”) will flash while the thermostat set point temperature is displayed.

Exiting programming mode: To exit programming mode, hold the SET button for approximately 2 seconds or refrain from pushing any buttons for approximately 12 seconds.

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Front Panel Layout Legend: 1. LCD display window 2. SERVICE LED – used to indicate network configuration

status 3. SET Button - used to enter and exit programming mode

and to advance through thermostat parameters 4. DOWN Button - used to adjust thermostat parameters 5. UP Button - used to adjust thermostat parameters

3

1

2

4 5

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Thermostat Modes

The PL-1 Thermostat supports the following thermostat modes: COOL Mode - In this mode the thermostat will

engage the cooling solenoid via RELAY 1 whenever the cool probe temperature1 rises above the set point value.

HEAT Mode - In this mode the thermostat will

engage the heating solenoid (selectable between RELAY 1 and RELAY 2)2 whenever the heat probe temperature3 falls below the set point value.

• AUTO Mode - In this mode the thermostat will automatically switch between HEAT and COOL modes as required. The following are the salient parameters and operating characteristics of AUTO mode:

• RELAY 1 is always used for COOLING • RELAY 2 is always used for HEATING • Set Point (SET 1) is the COOLING set point • Set Point 2 (SET 2) is the HEATING set point • HEATING and COOLING functions are mutually exclusive,

with COOLING taking precedence over HEATING. In other words, should conditions be such that the criteria for both heating and cooling are met simultaneously, the thermostat will engage only the cooling relay and not the heating relay.

OFF – In this mode all thermostatic operation is disabled as are all alarms. Additionally, when operating in a TankNET® server environment, data logging and alarm notifications for the thermostat are also disabled.

1 See COOL PROBE (“CP”) parameter 2 See HEAT RELAY (“Hr”) parameter 3 See HEAT PROBE (“HP”) parameter

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Thermostat Mode Programming:

1. Press and release the SET button as needed to advance to mode selection. This is indicated by the flashing of the currently selected mode annunciator. (“COOL”, “HEAT” or “OFF”) in the display window.

2. Press the UP/DOWN buttons to select the desired mode

3. Hold the SET button to exit programming mode OR press and release the SET button again to advance to the next programming parameter

COOL Related Parameters:

• Set Point • Cool Probe (“CP”) • Differential (“diF”)

HEAT Related Parameters:

• Set Point • Heat Probe (“HP”) • Heat Relay (“Hr”) • Differential (“DiF”)

AUTO Related Parameters:

• SET 1 (Cool) • SET 2 (Heat) • Cool Probe (“CP”) • Heat Probe (“HP”) • Differential (“diF”)

OFF Related Parameters:

• Show off “SoF”

HEAT and AUTO modes are NOT available while the “Hd” = 1

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Set Point (SET 1)

The Set Point (SET 1) parameter is used by the PL-1 thermostat modes as follows:

In COOL and AUTO mode this Set Point value determines the temperature4 above which the cooling relay (RELAY 1) will be engaged

In HEAT mode this Set Point value determines the temperature5 below which the heat relay6 will be engaged

Programming:

1. Press and release the SET button until the “SET” annunciator flashes.

2. Press the UP or DOWN buttons as required to adjust the Set Point value. Note: holding either the UP or DOWN button will cause the set point value to ramp accordingly.


4 See COOL PROBE (“CP”) parameter 5 See HEAT PROBE (“HP”) parameter 6 See HEAT RELAY (“Hr”) parameter

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Set Point 2 (SET 2)

The Set Point 2 (SET 2) parameter, which is only available in AUTO mode, determines the temperature7 below which the heating relay will be engaged. In AUTO mode, the Heat Relay (“Hr”) setting is ignored and RELAY 2 is always engaged whenever heating is called for.

Programming:

1. Press and release the SET button until the “SET 2” annunciator flashes.

2. Press the UP or DOWN buttons as required to adjust the Set Point value. Note: holding either the UP or DOWN button will cause the set point value to ramp accordingly.


7 See HEAT PROBE (“HP”) parameter

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Temperature Units

The PL-1 thermostat can be configured to display temperature values in either Celsius or Fahrenheit.

Programming:

1. Press and release the SET button until Units annunciator (°F or °C) flashes.

2. Use the UP / DOWN buttons to toggle this parameter between °C and °F.


This parameter cannot be changed while the Units Lock (“UL”) parameter is set to “On”.

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Probe Display

The PL-1 thermostat supports up to two X-Bus™ temperature probes and allows the operator to toggle between the two probe temperature readings.

Programming:

1. Press and release SET button until the “PROBE” annunciator flashes.

2. Press the UP or DOWN button to toggle between the available probes.


This setting is only in effect during programming mode. During normal operating modes probe temperatures are displayed per the following:

• In COOL and AUTO modes the temperature of the designated Cool Probe (“CP”) will be displayed.

• In HEAT mode the temperature of the designated Heat Probe (“HP”) will be displayed.

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Probe Alarms (“P1A” and P2A”)

The PL-1 includes two probe alarm enables, one for each probe that can be attached to the thermostat. A value of “On” enables alarms (high/low and probe fault) for the selected probe. A value of “OFF” disables alarms for the selected probe, regardless of the values assigned to that probes high/low alarm threshold parameters. Alarms are indicated locally via an “ALARM” annunciator and remotely via e-mail in TankNET server environments.

Probe 1 Alarms (“P1A”): On / OFF Probe 2 Alarms (“P2A”): On / OFF

Programming:

To enable or disable temperature alarms for a given probe:

1. Press and release the SET button as needed to advance to the “P1A” or “P2A” programming parameter

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to adjust the parameter to the desired value


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High Alarm Threshold (“AL--”)

This parameter determines the probe temperature above which an alarm will be triggered.

Programming:

To adjust the high alarm temperature threshold for the selected probe alarm:

1. Press and release the SET button as needed to advance to the “AL--” parameter for the desired probe



This parameter is only accessible when the corresponding probe alarm is enabled (PxA = “On”, where x = probe number).

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Low Alarm Threshold (“AL_”)

This parameter determines the probe temperature below which an alarm will be triggered.

Programming:

To adjust the low temperature threshold for the selected probe alarm:

1. Press and release the SET button as needed to advance to the “AL_” parameter for the desired probe



This parameter is only accessible when the corresponding probe alarm is enabled (PxA = “On”, where x = probe number).

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Brix Entry (“Br”)

The Brix entry screen allows Brix measurements taken at the tank to be entered directly into the thermostat. In TankNET® server environments, Brix measurements entered at the thermostat are recorded into the TankNET® database and are available in the form of fermentation graphs via the Web.

Programming:

Valid range: -9.9 to 50.0

NULL value: -10.0 = “---”

1. Press and release the SET button until the “BRIX” annunciator flashes

2. Use the UP / DOWN buttons to adjust the parameter to the desired value


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Pump-over Entry (“Po”)

The Pump-over event entry screen allows cellar crews to enter pump-over events at the thermostat. In TankNET® server environments, pump-overs are viewable on both the winery maps and on the fermentation graphs via Web Browser.

Programming:

1. Press and release the SET button until the “Po” parameter is displayed.



Note:

The pump-over entry feature is designed for minimal user interaction. Cellar staff need not remember to change the pump-over state from “On” to “OFF after completing a pump-over operation. Instead, the thermostat will automatically change the pump-over state from “On” to “OFF” as determined by the default pump-over duration. See Pump-over Duration (“Pod”) for more information about this mechanism.

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Pump-over Duration (“Pod”)

This parameter is used to determine how long (in minutes) the thermostat will wait before resetting the Pump-over state from “On” to “OFF”.

The unit of measure for this parameter is minutes.

Programming:

1. Press and release the SET button until the “Pod” parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to adjust the parameter to the desired value (in minutes).


Note: Setting this parameter to zero (0) disables the automatic pump-over shut off feature and will require cellar staff to manually turn pump-overs (“Po”) OFF.

This parameter is only accessible while “Po” is set to “On”.

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Control Configuration (“CC”)

This parameter is used to grant access to the advanced thermostat configuration parameters.

Programming:

1. Press and release the SET button until the “CC” menu indicator is displayed.

2. Press the UP or DOWN button to turn this menu “ON”

3. Press and release the SET button to advance to the first control configuration parameter.

Note:

This parameter is reset to “OFF” upon exiting programming mode.

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Thermostat Differential (“diF”)

This parameter determines the thermostat switching differential (or hysteresis), which applies to all thermostat modes.

Programming:

1. Press and release the SET button until the “Dif” parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to adjust the parameter to the desired value.


This parameter is only accessible while the Thermostat Configuration menu (“CC”) is set to “On”.

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Units Lock (“UL”)

This parameter can be used to prevent inadvertent changes to the local temperature display units setting. When this parameter is set to “On” the thermostat’s temperature units can not be changed locally.

Programming:

1. Press and release the SET button until the “UL” parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to toggle this parameter between “On” and “Off”



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Cool Probe (“CP”)

The PL-1 thermostat supports two temperature probes. The Cool Probe (“CP”) parameter tells the thermostat which probe to use for cooling. Only those probes which are attached to the thermostat can be assigned to the Cool Probe parameter.

Programming:

1. Press and release the SET button until the “CP” parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to toggle this parameter between the available probes.



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Heat Probe (“HP”)

The PL-1 thermostat supports up to eight temperature probes. The Heat Probe (“HP”) parameter tells the thermostat which probe (or sensor in the case of a Stratiprobe®) to use for heating. Only those probes which are attached to the thermostat can be assigned to the Heat Probe parameter.

Programming:

1. Press and release the SET button until the “HP” parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to toggle this parameter between the available probes.



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Heat Relay (“Hr”)

This parameter determines which of the two internal relays will be engaged for heating. This setting only applies to HEAT mode and has no effect in COOL and AUTO modes.

Programming:

1. Press and release the SET button until the “Hr”

parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to toggle this parameter between the Relay 1 and Relay 2.


This parameter is only accessible while the Thermostat Configuration

menu (“CC”) is set to “On”.

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Heat-Modes Disable (“Hd”)

This parameter can be used to prevent the thermostat from being set to any of the heating modes. When this parameter is set to “1” only COOL and OFF modes are allowed.

Programming:

1. Press and release the SET button until the “Hd”

parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to toggle this parameter between the 0 (allow heat mode) and 1 (disable heat mode).



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Data Entry Disable (“dEd”)

This parameter is used to disable brix and pump-over data entry at the thermostat. Setting the value of this parameter equal to “1” disables brix and pump-over entry. The factory default value of this parameter is “0” (brix and pumpover data entry enabled).

Programming:

1. Press and release the SET button until the “dEd” parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to toggle this parameter between the 0 (brix and pumpover entry enabled) and 1 (brix and pumpover entry disabled).



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Power Up Delay (“Pud”)

This parameter is used to delay thermostatic operation for a pseudo-random period of time immediately following power up. Setting this parameter to a value of “1” inhibits thermostatic operation for a period of between 240 and 320 seconds at power up. Setting the “Pud” parameter to a value of “0” (factory default) disables this delay function. A count-down timer (in seconds) is displayed while thermostat delay is in effect. Pressing any front panel button during the count down will cancel the delay and cause the thermostat to resume normal operation.

Programming:

1. Press and release the SET button until the “Pud” parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to toggle this parameter between the 0 (no power delay) and 1 (delay at power up).


This parameter is only accessible while the Thermostat Configuration

menu (“CC”) is set to “On”.

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Show OFF (“SoF”)

The value of this parameter determines whether the thermostat displays probe temperature or the text “OFF” in the LCD window when the thermostat is in the OFF mode. A value of “1” causes the thermostat to show “OFF” while in OFF mode. A value of “0” (factory default) causes the thermostat to display probe temperature while in OFF mode.

Programming:

1. Press and release the SET button until the “SoF” parameter is displayed.

2. Press the UP or DOWN button once to display the current parameter value. With the current value displayed, use the UP/DOWN buttons to toggle this parameter between the 0 (show probe temperature) and 1 (show “OFF”).



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Network Service Function

+

The SERVICE function is primarily used to register the thermostat with a TankNET® server during network installation. Once registered, the thermostat can then be monitored and controlled via the TankNET® Web Software.

The SERVICE function also contains an LED, which is used to indicate the network configuration state of the thermostat.

The typical network configuration states are:

1. Unconfigured (factory default): In this state the Service LED will flash ON and OFF at a rate of approximately 1.5 hertz (times per second). This state is normal for thermostats that have not yet been registered with a TankNET® server.

1. Configured: In this state the Service LED will remain dark. This state is normal for thermostats that have been registered with a TankNET® server.

Uninstalling a Thermostat:

The SERVICE function can also be used to remove a thermostat from a TankNET® network.

CAUTION: This operation will cause the thermostat to become inaccessible from the TankNET® Web Software.

To remove the thermostat from an existing TankNET®

network, hold down both the SET and UP ARROW buttons simultaneously for approximately 10 seconds.

For non-networked environments in which the flashing SERVICE LED may be undesirable, a jumper is provided inside the thermostat (J5) to disable SERVICE LED activity. IMPORTANT: THIS JUMPER SHOULD REMAIN IN THE ENABLED POSITION FOR NETWORKED THERMOSTATS.

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External Wiring

Notes: A) Maximum wire gauge per contact = 16 AWG. B) Jumper required (as shown) for switched leg

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Internal Cable Connections

A standard PL-1 thermostat has two internal ribbon cables that must be connected during installation. These cable connections are shown below. When installing, snap each cable into its mating connector to ensure a reliable connection.

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Fuses and Service

The PL-1 thermostat has been designed to provide years of reliable service in harsh cellar environments. In the unlikely event that you do experience a problem with your thermostat, please contact Acrolon technical support for assistance via 707-938-1300 or [email protected]. The PL-1 thermostat contains three internal fuses, which are located on the power supply assembly. Under normal operating conditions these fuses should remain intact. However, it is quite common for a solenoid failure (usually a shorted coil) to cause the corresponding relay fuse to fail (open). In such cases, no energy will be transferred to the solenoid when the relay is engaged.

IMPORTANT! USE ONLY SPECIFIED FUSES FOR REPLACEMENT

RISK OF ELECTRIC SHOCK!

BE SURE TO DISCONNECT POWER AT THE SOURCE BEFORE OPENING THE THERMOSTAT FOR ANY

REASON!

Main Fuse (F3)

Littlefuse P/N 021806.3HXP

Relay 1 Fuse (F1) Wickmann P/N 3961500044

Relay 2 Fuse (F2) Wickmann P/N 3961500044

PL-1 Thermostat User’s GuidePL-1 Thermostat User’s Guide Version 2.0 Heat Relay (Hr) 21 Firmware...

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