Raychem 920 Series Installation And Operation Instruction Manual

920 SERIES HEAT TRACE
CONTROLLER OPERATOR CONSOLE

Installation and Operation Instructions

Firmware Versions up to and including V3.2x

A

B

LOCK

ALARM

A/BSHIFT

0

92

MONITOR CONFIG

BACK ENTER

SERIES

PROGRAMMABLE DUAL POINT
HEAT TRACING CONTROLLER

Tx

Rx

STATUS

ALARM

OUTPUT

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CONTENTS

Installation and Maintenance instructions for Firmware Versions up to and including V3.2FX ................ 4

Certication .................................................................................................................................. 4

Limited Warranty .......................................................................................................................... 4

Warranty Exclusion/Disclaimer ................................................................................................... 4

Exclusive Remedies ...................................................................................................................... 4

Conducted and Radiated Emissions - FCC/DOC Statement of Compliance ............................ 4

Section 1 Overview ................................................................................................................................... 5

1.1 Introduction ................................................................................................................................. 5

1.2 Controllers Covered By This Manual ......................................................................................... 5

1.3 Product Overview ........................................................................................................................ 5

1.3.1 Description ........................................................................................................................ 5

1.3.2 Features ............................................................................................................................. 5

1.4 Ordering Information .................................................................................................................. 5

Section 2 Installation ............................................................................................................................... 6

2.1 Introduction ................................................................................................................................. 6

2.2 Initial Inspection ......................................................................................................................... 6

2.3 Operator Safety Considerations .................................................................................................6

2.4 Operating Environment ............................................................................................................... 6

2.5 Installation Location ................................................................................................................... 6

2.6 Installation and Removal Procedures ....................................................................................... 7

2.6.1 Operator Console Installation and Removal ...................................................................7

Section 3 User Interface & Operation ....................................................................................................... 8

3.1 Alpha-Numeric Display ............................................................................................................... 8

3.2 Keypad ......................................................................................................................................... 8

3.3 LED Indicators ............................................................................................................................. 9

3.4 Operational Basics ...................................................................................................................... 9

3.4.1 Operating Modes .............................................................................................................. 9

3.4.2 Menus ................................................................................................................................ 9

3.4.3 Changing the Conguration ...........................................................................................10

3.4.4 Changing a Non-Numeric Parameter ............................................................................10

3.4.5 Changing a Numeric Parameter.....................................................................................10

3.4.6 Passcode Protection ...................................................................................................... 10

3.4.7 Switching Between Points A and B ................................................................................ 11

3.4.8 Quick Notes on Operation .............................................................................................. 11

Section 4 Operating Modes .................................................................................................................... 12

4.1 Alarm Mode............................................................................................................................... 12

4.1.1 Resetting One Alarm ....................................................................................................... 12

4.1.2 Resetting All Alarms ....................................................................................................... 12

4.1.3 Monitor Mode Tracking .................................................................................................. 12

4.1.4 Alarm Messages ............................................................................................................. 12

4.2 Monitor Mode ........................................................................................................................... 13

4.2.1 Main Menu....................................................................................................................... 13

4.2.2 “MAINTENANCE DATA...” Sub-Menu ............................................................................. 13

4.3 CONFIGURE MODE ................................................................................................................... 14

4.3.1 Main Menu....................................................................................................................... 14

4.3.2 “TS ALARM CONFIG...” Sub-Menu ................................................................................. 14

4.3.3 “OTHER ALARMS CONFIG...” Sub-Menu ........................................................................ 15

4.3.4 “POINT SETUP...” Sub-Menu ...........................................................................................16

4.3.5 “COMMON SETUP...” Sub-Menu ..................................................................................... 17

4.3.5.1 “COPY CONFIG...” Sub-Menu ............................................................................ 17

4.3.6 “COMMUNICATIONS SETUP...” Sub-Menu ..................................................................... 18

Section 5 Maintenance........................................................................................................................... 19

5.1 OPERATOR MAINTENANCE ..................................................................................................... 19

5.2 REPLACEABLE PARTS .............................................................................................................. 19

Section 6 Specications ......................................................................................................................... 19

nVent.com | 3

INSTALLATION AND MAINTENANCE INSTRUCTIONS FOR FIRMWARE VERSIONS UP TO AND INCLUDING V3.2FX

This manual provides information pertaining to the installation, operation, testing, adjustment,
and maintenance of the nVent RAYCHEM Model 920 Series Heat Trace Control and Monitoring

products.

Additional copies of the operating manual may be ordered separately through your nVent
representative or online at nVent.com using the document number H56903.

Notice: The information contained in this document is subject to change without notice.

Certification

nVent certifies that this product met its published specifications at the time of shipment from
the Factory.

Limited Warranty

This nVent product is warranted against defects in material and workmanship for a period of
18 months from the date of installation or 24 months from the date of purchase, whichever
occurs first. During the warranty period, nVent will, at its option, either repair or replace
products that prove to be defective.

For warranty service or repair, this product must be returned to a service facility designated by
nVent. The Buyer shall prepay shipping charges to nVent and nVent shall pay shipping charges
to return the product to the Buyer. However, the Buyer shall pay all shipping charges, duties,
and taxes for products returned to nVent from another country.

nVent warrants that the software and firmware designated by nVent for use with the RAYCHEM
920 Controller will execute its programming instructions properly. nVent does not warrant that
the operation of the hardware, or software, or firmware will be uninterrupted or error-free.

Warranty Exclusion/Disclaimer

The foregoing warranty shall not apply to defects resulting from improper or inadequate
maintenance by the Buyer, Buyer-supplied software or interfacing, unauthorized modification or
misuse, operation outside of the specifications for the product, or improper installation.

No other warranty is expressed or implied. nVent disclaims the implied warranties of
merchantability and fitness for a particular purpose.

Exclusive Remedies

The remedies provided herein are the buyer’s sole and exclusive remedies. nVent shall not be
liable for any direct, indirect, special, incidental, or consequential damages, whether based on
contract, tort, or any other legal theory.

Conducted and Radiated Emissions - FCC/DOC Statement of Compliance

This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference, in which case the user will be required to correct the
interference at his own expense.

This equipment does not exceed Class A limits for radio emissions as set out in Schedule V to
VIII of the Radio Interference Regulations of Communication Canada.

Cet appareil respecte les limites de bruits radioelectriques applicables aux appareils
numeriques de Classe A prescrites dans la norme sur le materiel brouilleur: “Appareils
Numeriques”,

NMB-003 edictee par le Ministre des Communications.

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SECTION 1 OVERVIEW

1.1 INTRODUCTION

This manual provides information pertaining to the installation and operation of the
RAYCHEM 920 Series Heat Trace Controller Operator Console. For information relating to
theprogramming, installation maintenance and troubleshooting of other 920 Series products,
including the Dual Point Control Module, Controller Assemblies, etc., please refer to the
920Series Controller Manual.

Additional copies of this manual may be ordered separately through your nearest sales office
using the order number listed on the front cover.

1.2 CONTROLLERS COVERED BY THIS MANUAL

This document covers the 920 Series Heat Trace Controller Operator Console. The information
coincides with the specific releases of firmware for the 920 product which are listed on the
front page. As nVent releases new firmware to modify or enhance the product significantly,
new documentation will accompany these releases. To ensure that you are using the correct
documentation for your particular version of controller, please check the firmware version
number of the 920 against the version number listed on the front of this manual. This may be
displayed using the 920 Series Operator Console or a communicating device. As subsequent
changes are made, updates will be included in manuals shipped after the firmware is released.
If issued, supplements will make specific reference to any operational or functional changes.

1.3 PRODUCT OVERVIEW

1.3.1 Description

The 920 Series Operator Console provides a simple, easy to use interface to the Dual Point
Controller, alleviating the need for a communicating device to configure the Controller. The
Console allows you to look at or reset alarms, test or monitor the heat tracing, and examine or
alter the configuration.

The Console may be left installed permanently or may be installed temporarily for display/
setup during maintenance and troubleshooting. Access is available for all monitored
parameters, programmed values, and alarm information. Enhanced security is provided by

password protection.

The unique design of the Operator Console allows it to be installed or removed under power
even in hazardous areas.

1.3.2 Features

Keypad and Alpha-numeric Display

A six character alpha-numeric LED display provides the operator with large easy to read
messages and prompts, eliminating complex and cryptic programming. Six individual keys are
provided to quickly access alarming and operational information.

–40 to 140°F (–40 to 60°C) Operation

Extended temperature operation permits installation in all but the harshest environments.

CSA C/US & FM Approved

The 920 Series Operator Console is approved for Class I, Division II, Groups A,B,C,D and Zone 2
hazardous locations making it ideal for direct use in the field.

1.4 ORDERING INFORMATION

The 920 Series Operator Console is ordered as a separate item from the Controller Assembly
or other components. It may be ordered as Model #920CON. Please refer to the latest
RAYCHEM 920 Series Ordering Guide for additional information.

IMPORTANT WARNINGS AND NOTES

The following icons are used extensively throughout this manual to alert you to important warnings

that affect safety and to important notes that affect the proper operation of the unit.

Be sure to read and follow them carefully.

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SECTION 2 INSTALLATION

CAUTION:

Be sure all personnel involved in installation, servicing, and programming are qualified and
familiar with electrical equipment, their ratings and proper practices and codes. Multiple
voltages and signal levels may be present during the installation, operation, and servicing of
this product. Do not power the product until the safety provisions outlined in this section have
been observed.

2.1 INTRODUCTION

This section includes information regarding the initial inspection, preparation for use, and
storage instructions for the 920 series operator console.

2.2 INITIAL INSPECTION

Inspect the shipping container for damage. If the shipping container or cushioning material
is damaged, it should be kept until the contents of the shipment have been verified for
completeness and the equipment has been checked mechanically and electrically. Procedures
for operating the Console are given in Section 3. If the shipment is incomplete, there is
mechanical damage, a defect, or the console does not operate properly, notify the nearest
nVent representative. If the shipping container is damaged, or the cushioning material shows
signs of stress, notify the carrier as well as your nVent representative. Keep the shipping
materials for the carrier’s inspection.

2.3 OPERATOR SAFETY CONSIDERATIONS

The 920 series operator console is suitable for use in Class 1, Division 2, Groups A, B, C, D and
Zone 2 hazardous areas. Hazardous areas are defined by Article 500 of the National Electrical
Code and Section 18 of the Canadian Electrical Code.

2.4 OPERATING ENVIRONMENT

2.5 INSTALLATION LOCATION

The operating environment should be within the limitations specified in the 920 Operator

Console Specifications outlined in Section 6.

The wide ambient operating temperature range of the console permits installation and use
in any convenient location. Considerations should include expected atmospheric conditions,
accessibility for maintenance and testing, and hazardous area rating.

CAUTION:

Always be sure that the intended location is classified as an area that the product is approved
for as defined by Article 500 of the National Electrical Code and/or Part I, Section 18 of the

Canadian Electrical Code.

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2.6 INSTALLATION AND REMOVAL PROCEDURES

2.6.1 Operator Console Installation and Removal

The Operator Console is designed to be easily installed or removed while the Controller is
powered - even in Class I Division 2 and Zone 2 hazardous locations. It may be temporarily or

permanently installed.

The console is installed in three steps:

“Hook” the lip provided on the rear cover of the Console over the top edge of the

Step

1

Control Module front plate.

Figure 2.1 Console Installation - Step 1

Step 2 “Hinge” the bottom of the Console downwards until it is flush with the front of the

Control Module.

Figure 2.2 Console Installation - Step 2

Step 3 If the Console is to be permanently installed, secure it to the Control Module using the

captive screw provided. It should be finger tight only. Do not over-tighten the screw or damage
to the console housing may occur.

Figure 2.3 Console Installation - Step 3

To remove the Console, follow the three steps outlined above in reverse order.

nVent.com | 7

SECTION 3 USER INTERFACE & OPERATION

A/B

ALARM

A/B

ALARM

SHIFT

MONITOR

SHIFT

BACK

A/B

ALARM

SHIFT

MONITOR

SHIFT

BACK

A/B

ALARM

SHIFT

MONITOR

SHIFT

BACK

CONFIG

SHIFT

ENTER

A/B

ALARM

BACK

ENTER

3.1 ALPHA-NUMERIC DISPLAY

The console incorporates a 6 character 14 segment plus decimal LED display. Messages and
prompts that are greater than 6 characters long are scrolled, allowing more meaningful, non­cryptic messages to be used.

3.2 KEYPAD

The local keypad consists of 6 keys that allow you to select the console mode function that
you are interested in. For certain keys, the shift key selects an alternate function, as shown by
the text above that key.

Figure 3.1 Operator onsole

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920 SERIES

A

B

ALARM

MONITORCONFIG

SHIFT

Key Function

SHIFT

SHIFT

SHIFT

A/B

BACK ENTER

LOCK

SHIFT • Press to activate a shifted function — the next key pressed

uses the alternate (shifted) function

• The SHIFT LED illuminates, indicating the next key uses
the alternate (shifted) function

• Pressing SHIFT again cancels the alternate (shifted) function

ALARM

A/B

A/B

[shift ALARM]

• Toggles the console display from one control point to the
other (A to B or B to A)

• When prefixed by the SHIFT key, this key switches the
console to the ALARM mode

BACK

[shift MONITOR]

• Exits the current menu (or cancels the new setting when
editing a parameter)

• Moves the cursor to the left when editing an alpha-numeric

parameter

• When prefixed by the SHIFT key, this key switches the
console to the MONITOR mode

CONFIG

ENTER

ENTER
[shift CONFIG]

• Selects the item in the display (or accepts the setting when
editing a parameter)

• Moves the cursor to the right when editing an alpha-

numeric parameter

• When prefixed by the SHIFT key, this key switches the
console to the CONFIGURE mode

• Moves to the previous item in a menu

• Increments the value when editing

• Moves to the next item in a menu

• Decrements the value when editing

PROGRAMMABLE DUAL POINT
HEAT TRACING CONTROLLER

Tx

Rx

STATUS

ALARM

OUTPUT

3.3 LED INDICATORS

3.4 OPERATIONAL BASICS

The console includes twelve LED indicators:
Six LEDs indicate the console status — the operating mode (a shifted function, alarm, monitor,

or configure modes) and the active control Point (A or B).
Four LEDs indicate the alarm and control output status for both Points A and B.
The two additional LEDs are used to indicate external communications activity — the “Rx” LED

flashes to show that the controller is receiving information via its communications port, and
the “Tx” LED flashes when the controller is transmitting data.

3.4.1 Operating Modes

The console operates in one of four modes and is related to the basic function the operator
selects. These modes are:

Mode Function

Scan • This is the default mode. In this mode the console sequentially displays the

active control point, the setpoint, temperature, and load current readings
for Points A and B.

Alarm • Invoked when you press the SHIFT key followed by ALARM key. This

Monitor • Invoked when you press the SHIFT key followed by MONITOR key.

Configure • Invoked when you press the SHIFT key followed by CONFIG key. In this

mode allows you to examine or reset any alarms that may exist. The LED
above the ALARM key is illuminated while in this mode.

In this mode, you may examine any of the controller readings such as
temperature, load current, ground fault current, etc. The LED above the
MONITOR key is illuminated while in this mode.

mode, you may examine or alter the controller configuration. The LED
above the CONFIG key is illuminated while in this mode.

3.4.2 Menus

Each of the operating modes has a list of data items associated with it. For example, in the
Monitor mode you may view temperatures, load current, resistance, ground fault current,
voltage, or power information. This collection of data items is referred to as a menu.

Only one menu item may be viewed at a time. The
in the menu. When you reach the end of the menu (indicated by --- END ---),
first item in the menu; conversely,

Some of the items within a menu are actually entry points to sub-menus — these entries are
indicated with “...” at the end of the message. To enter a sub-menu, press the
around in the menu, use the

key exits the current menu and returns to the previous menu.

The
After approximately five minutes of keypad inactivity, the current menu and mode will be exited

and the console will revert back to the Scan mode.
IMPORTANT: Some menus are dynamic, that is, some items appear or disappear depending

on the configuration. For example, if you disable the low voltage alarm, then the corresponding
low voltage setpoint is not available and will not be displayed.

wraps you to the last item in the menu.

and keys move to the next and previous items respectively.

( ) keys move to the next (previous) item

wraps you to the

key. To move

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3.4.3 Changing the Configuration

To change the controller configuration:

• Position the desired parameter (menu item) in the display.

• Press the

• If the console is “locked” you are prompted to enter the passcode.

• The present setting will flash on the display to indicate that you are editing the parameter.

• Use the

• The operation of the

following sections for details.

IMPORTANT: Once you have initiated an edit session, you must end it before switching to
another mode or invoking another function (including switching between Points A and B). An
edit session ends when you enter a new value (using the

key).

key to initiate an edit session.

and keys to change the value.

and varies depends on the type of data being editing. See the

key) or you back out of it (using the

3.4.4 Changing a Non-Numeric Parameter

To change a non-numeric parameter (e.g.: an alarm mask setting):

• Position the appropriate parameter in the display.

• Press the

• If the console is “locked” you are prompted to enter the passcode.

• The present setting will flash on the display to indicate that you are editing the parameter.

• Use

• Pressing

• Pressing

key to initiate the edit session.

or until the desired value appears in the display.

saves the new value.
ends the edit session without altering the parameter.

3.4.5 Changing a Numeric Parameter

To change a numeric parameter (e.g.: the control setpoint):

• Position the appropriate parameter in the display.

• Press the

• If the console is “locked” you are prompted to enter the passcode.

• The present value is displayed and the last (rightmost) digit blinks.

• The blinking digit identifies the digit that you are editing.

• Use

• Use

• To enter a negative value, scroll the first (leftmost) digit until a “-” appears in the display.

• Pressing

• Pressing
parameter.

key to initiate the edit session.

or to set the desired value.
or to move to a different digit.

while on the last (rightmost) digit saves the new value.
while on the first (leftmost) digit ends the edit session without altering the

3.4.6 Passcode Protection

The 920 Series Dual Point Controller provides a passcode for protection of its configuration.
You may view any portion of the configuration with the console “locked”, however, when you
attempt to initiate an edit session by pressing
Entering the passcode is just like entering any other numeric value; see Section 3.4.5
“Changing a Numeric Parameter”.

Once the console is “unlocked”, you may edit any configuration parameter. The console will
automatically re-lock after approximately five minutes of keypad inactivity, or until the user
explicitly locks it.

IMPORTANT: Setting the programmed passcode to “0” disables passcode protection.

, you are prompted to enter the passcode.

IMPORTANT: The console does not have to be unlocked to reset alarms.

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3.4.7 Switching Between Points A and B

There are two LEDs to indicate which point has control of the console. You may switch from
Point A to Point B (or vice versa) at any time (except during an edit session) by pressing
the A/B key. When you switch points, the same menu item is active. For example, if you are
monitoring the voltage for Point B and press A/B, then the voltage for Point A is displayed.

Pressing A/B again takes you back to monitoring Point B.

3.4.8 Quick Notes on Operation

Remember the followwing basic rules for efficient console use:

• Use the SHIFT key followed by the appropriate function key — ALARM, MONITOR, or
CONFIG — to select the operating mode

• Use

• Use

• Use

• Use the A/B key to toggle between Points A and B

and to move around in the menu
to enter a new menu, enter a new value, or select a menu item
to exit the current menu or cancel an edit

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SECTION 4 OPERATING MODES

4.1 ALARM MODE

The ALARM mode is invoked when you press the SHIFT key followed by the ALARM key.
Thismode allows you to examine and reset any alarms that may exist. Use
the next (previous) active alarm.

( ) to examine

4.1.1 Resetting One Alarm

To reset an alarm, press . You are prompted for confirmation — answering “YES” resets the
alarm and advances you to the next alarm.

4.1.2 Resetting All Alarms

To reset all active alarms for the control point being displayed, press . You are prompted for
confirmation — press

to select “ALL” and press to accept.

4.1.3 Monitor Mode Tracking

The MONITOR mode “tracks” the ALARM mode. If the MONITOR mode is selected while
viewing an alarm, the controller will enter the MONITOR menu and display an appropriate
reading. For example, if you are examining a High Load Current Alarm and then select the
MONITOR mode, the starting point within the MONITOR menu will be the load current reading.
Once the MONITOR mode has been selected, you may move around in the menu using

and .

4.1.4 Alarm Messages

Table 4.1 lists sample alarms and the corresponding starting point in the MONITOR mode
menu, if it is invoked from the ALARM mode.

Sample Alarm Message Monitor Mode Starting Point

LO TS 1 = -2°C TS 1 Temperature

HI TS 1 = 102°C “

TS 1 FAIL = ALARM “

LO TS 2 = -4°C TS 2 Temperature

HI TS 2 = 105°C “

TS 2 FAIL = ALARM “

CTL TS FAIL = ALARM Control Temperature

LO LOAD = 0.5 A Load Current

HI LOAD = 21.0 A “

HI GFI = 52 mA Ground Fault Current

GFI TRIP = 77 mA “

LO VOLT = 85 V Voltage

HI VOLT = 140 V “

LO RESIST = 3.38Ω Resistance

HI RESIST = 9.24Ω “

OVERCURRENT TRIP = ALARM Load Current

SWITCH FAIL = ALARM “

HTC RESET = ALARM Time Since Last Reset

SWITCH LIMITING = ALARM Load Current

C.B. LIMITING = ALARM “

POWER LIMITING = ALARM Power

EEROM DATA FAIL = ALARM N/A

CONTACTOR COUNT = 200,000 Contactor Cycle Count

Table 4.1

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4.2 MONITOR MODE

The MONITOR mode is invoked when you press the SHIFT key followed by the MONITOR key.
This mode allows you to test the heat tracing and examine any of the analog readings. The data is

updated in real-time, providing the user with a method of viewing tracer information as it occurs.

4.2.1 Main Menu

Monitor Mode Main Menu

CONTROL TEMP = 4°C
TS 1 TEMP = 4°C
TS 2 TEMP = 7°C

LOAD = 8.9 A
RESIST = 13.26 Ω
GFI = 0 mA
V O LT = 118 V
POWER = 1050 W

TEST TRACING
DISPLAY TEST

MAINTENANCE DATA...

--- END 

Table 4.2

(or CONTROL TEMPBUS = 4°C)

(only if TS2 is being used)

(or POWER = 10.4 kW

(turn on tracing for 30 seconds)

(to abort DISPLAY TEST,
press any key)

Note the “...” indicating a sub-menu.

4.2.2 “MAINTENANCE DATA...” Sub-Menu

This sub-menu is used to view minimum and maximum temperatures, total accumulated
power, hours in use, and the number of hours since the last time the Controller was reset.
These parameters may be reset by the user. For additional information, refer to the 920 Series
Heat Trace Controller Manual.

CONTROL TEMP = 4°C
TS 1 TEMP = 4°C
TS 2 TEMP = 7°C

LOAD = 8.9 A
RESIST = 13.26 Ω
GFI = 0 mA
V O LT = 118 V
POWER = 1050 W

TEST TRACING
DISPLAY TEST
MAINTENANCE DATA...

--- END ---

MAINTENANCE DATA Sub-Menu

MIN CTL TEMP = -2°C
MAX CTL TEMP = 65°C
TS 1 MIN TEMP = -2°C
TS 1 MAX TEMP = 65°C
TS 2 MIN TEMP = -1°C
TS 2 MAX TEMP = 61°C
POWER ACCUM = 145.9 kW-h

CONTACTOR CYCLE COUNT = 1234

IN USE = 2896 h
TIME SINCE LAST RESET = 675 h

---- END ----

Table 4.3

(only if Deadband or Prop. Amb. Contactor
modes are being used)

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4.3 CONFIGURE MODE

The CONFIGURE mode is selected when the operator presses the SHIFT key followed by the
CONFIG key. This mode allows you to examine or alter the Controller’s configuration.

Menu items with a trailing “...” indicate an entry point to a sub-menu. To enter a sub-menu, use

and to position the menu item in the display and then press . Note that the controller

“remembers” where you are in the CONFIGURE mode if you temporarily switch to a different
mode (such as the MONITOR mode). Switching back to the CONFIGURE mode will return you
to the same menu item.

IMPORTANT: A few of the controller parameters that are often used have been duplicated in
the CONFIGURE mode main menu for quick access. These parameters (Lo TS 1, Lo Load, Hi
GFI, GFI Trip) may also be accessed using their respective sub-menus.

4.3.1 Main Menu

Monitor Mode Main Menu

CONTROL SETPOINT = {-60 to 570}°C
LO TS 1 = {-60 to 570}°C
LO LOAD = {0.3 to 100.0} A

HI GFI = {20 to 250} mA
GFI TRIP = {20 to 250} mA
TS ALARMS CONFIG... Note that the menu items with a trailing “...” indicate

the entry point to a sub-menu.

OTHER ALARMS CONFIG...
POINT SETUP...

COMMON SETUP...
COMMUNICATIONS SETUP...
LOCK DATABASE (only if passcode is not 0 and database is unlocked)
UNLOCK DATABASE (only if passcode is not 0 and database is locked)

--- END ---

Table 4.4

4.3.2 “TS ALARM CONFIG...” Sub-Menu

This sub-menu is used to set up alarms that relate to any of the temperature sensors. Each alarm
may be ENAbled or DISabled, and if the alarm is ENAbled, an alarm setting may be entered.

CONTROL SETPOINT = 20°C
LO TS 1 = -10°C
LO LOAD = 1.0 A

HI GFI = 50 mA
GFI TRIP = 75 mA
TS ALARMS CONFIG...
OTHER ALARMS SETUP...
POINT SETUP...
COMMON SETUP... 
COMMUNICATIONS SETUP...

--- END --- 

TS Alarms Configuration Sub-Menu

TS 1 FAIL = {ENA or DIS}
LO TS 1 = {ENA or DIS}
LO TS 1 = {-60 to 570}°C
HI TS 1 = {ENA or DIS)
HI TS 1 = {-60 to 570}°C
TS 2 FAIL = {ENA or DIS)

LO TS 2 = {ENA or DIS)
LO TS 2 = {-60 to 570}°C
HI TS 2 = {ENA or DIS}
HI TS 2 = {-60 to 570}°C
LO TS FILTER = {0 to 999} MIN (only if LO TS 1 or 2 are enabled)
HI TS FILTER = {0 to 999} MIN (only if HI TS 1 or 2 are enabled)
LATCH TS ALARMS = {YES or NO}
CTL TS FAIL = {ENA or DIS}

--- END ---

Table 4.5

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4.3.3 “OTHER ALARMS CONFIG...” Sub-Menu

This sub-menu allows the user to set up all alarms that do not directly relate to the temperature
sensors. These include all AC alarms (voltage, current. ground fault, etc.) as well as protection
settings such as power limiting, etc.

Each alarm may be ENAbled or DISabled. If the alarm is ENAbled, an alarm setting and filter
setting may be entered.

CONTROL SETPOINT = 20°C
LO TS 1 = -10°C
LO LOAD = 1.0 A

HI GFI = 50 mA
GFI TRIP = 75 mA
TS ALARMS CONFIG...
OTHER ALARMS CONFIG...
POINT SETUP...
COMMON SETUP...
COMMUNICATIONS

SETUP...

--- END ---

Other Alarms Configuration Sub-Menu

LO LOAD = {ENA or DIS}
LO LOAD = {0.3 to 100.0} A
LO LOAD FILTER = {0 to 12} S
HI LOAD = {ENA or DIS}
HI LOAD = {0.3 to 100.0} A
HI LOAD FILTER = {0 to 12) S

HI GFI = {ENA or DIS}
HI GFI = {20 to 250} mA
HI GFI FILTER = {0 to 12} S
GFI TRIP = {ENA or DIS}
GFI TRIP = {20 to 250} mA

* LO VOLT = {ENA or DIS} 
* LO VOLT = {10 to 330} V
* LO VOLT FILTER = {0 to 12} S
* HI VOLT = {ENA or DIS}
* HI VOLT = {10 to 330} V
* HI VOLT FILTER = {0 to 12} S
LO RESIST = {ENA or DIS}
LO RESIST = {1 to 100} %
LO RESIST FILTER = {0 to 12} S
HI RESIST = {ENA or DIS}
HI RESIST = {1 to 250} %
HI RESIST FILTER = {0 to 12} S

NOMINAL RESIST = {2.00 to 2000.00}Ω (only if LO or HI is enabled)
OVERCURRENT TRIP = {ENA or DIS} (only if SSR is being used)

SWITCH FAIL = {ENA or DIS}
HTC RESET = {ENA or DIS}

C.B. LIMITING = {ENA or DIS} (only if SSR is being used)
POWER LIMITING = {ENA or DIS} (only if SSR is being used)
SWITCH LIMITING = {ENA or DIS} (only if SSR is being used)
CONTACTOR COUNT = {ENA or DIS} (only if Deadband or Prop. Amb.

CONTACTOR COUNT = {0 to 999,999} (only if Deadband or Prop. Amb.

EEROM DATA FAIL = {ENA or DIS}

--- END ---

• Only if VOLT SOURCE is set to the point being used.

Table 4.6

Contactor are being used)

Contactor are being used)

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16 | nVent.com

4.3.4 “POINT SETUP...” Sub-Menu

The “Point Setup” sub-menu is used to configure parameters that relate directly to each
specific control Point (A or B). Note that these settings must be configured for each of the
control points that are in use.

Included in this menu are control mode settings, circuit breaker and switch ratings, auto-cycle
set up parameters, etc..

CONTROL SETPOINT = 20°C
LO TS 1 = -10°C
LO LOAD = 1.0 A

HI GFI = 50 mA
GFI TRIP = 75 mA
TS ALARMS CONFIG...
OTHER ALARMS CONFIG...
POINT SETUP...
COMMON SETUP...
COMMUNICATIONS SETUP...

--- END ---

Point Setup Sub-Menu

TAG = {19 ALPHA-NUMERIC

CHARACTERS}

SWITCH CONTROL MODE = {PROPORTIONAL, PROP AMB.

SSR, DEADBAND, or PROP AMB.

CONTACTOR}

DEADBAND = {1 to 50}°C (only if SWITCH CONTROL

MODE is DEADBAND or
point A and EXT. OUTPUT =
INHIBIT)

PROP BAND = {1 to 50}°C (only if SWITCH CONTROL

MODE is not DEADBAND)

CYCLE TIME = {10 to 255}MIN (only if SWITCH CONTROL

MODE is PROP AMB.
CONTACTOR)

SWITCH RATING = {0.3 to 100.0} A (only if SSR is being used)
CIRCUIT BREAKER = {0.3 to 100.0} A (only if SSR is being used)
MAX POWER = {3 W to 33,000} W (only if SSR is being used)
3 PH PWR CALC = {YES or NO}
TS FAIL MODE = {OFF or ON}
TS CTL MODE = {TS 1.FAIL OFF(ON) or

TS 1-FAIL TO TS 2 or

TS 2-FAIL OFF(ON) or

TS 2-FAIL TO TS 1 or

AVERAGE-FAIL OFF(ON) or
AVERAGE-FAIL TO GOOD or
LOWEST-FAIL OFF(ON) or
LOWEST-FAIL TO GOOD or
EXT.INPUT-FAIL OFF(ON)or
EXT.INPUT-FAIL TO TS 1 or
EXT.INPUT-FAIL TO TS 2}

TS 1 TYPE = {100 ( PLAT or NI-FE}
TS 1 LEAD RESIST = {0 to 20.00} Ω (only if TS 1 TYPE = NI-FE)
TS 1 HI LIMIT = {ENA or DIS}
TS 2 TYPE = {100 ( PLAT or NI-FE}
TS 2 LEAD RESIST = {0 to 20.00} Ω (only if TS 2 TYPE = NI-FE)
TS 2 HI LIMIT = {ENA or DIS}
VOLT SOURCE = {PT. A or PT. B or FIXED}
FIXED VOLT = = {0 to 1000} V (only if VOLT SOURCE

= FIXED)

VOLT TURNS RATIO = {0.10 to 9.90} TO 1 (only if VOLT SOURCE =

current point°s voltage)

CURRENT TURNS RATIO = {0.10 to 60.00} TO 1
AUTO-CYCLE = {ENA or DIS}
AUTO-CYCLE INTERVAL = {1 to 240} (only if AUTO-CYCLE = ENA)
AUTO-CYCLE UNITS = {HOURS or MINUTES} (only if AUTO-CYCLE = ENA)
OVERRIDE SOURCE = {REMOTE or EXT. INPUT}
LOAD SHEDDING = {ENA or DIS}

--- END --- =

Table 4.7

4.3.5 “COMMON SETUP...” Sub-Menu

The “Common Setup” sub-menu is used to configure parameters that are common to both
control Points A and B. These settings are set up only once to define the operation of both

control points.

CONTROL SETPOINT = 20°C
LO TS 1 = -10°C
LO LOAD = 1.0 A

HI GFI = 50 mA
GFI TRIP = 75 mA
TS ALARMS CONFIG...
OTHER ALARMS CONFIG...
POINT SETUP...
COMMON SETUP...
COMMUNICATIONS SETUP...

--- END ---

Common Setup Sub-Menu

TEMP UNITS = {°C or °F}

VERSION = V3.14.0

EXT. INPUT = {NOT USED, TEMPBUS, INHIBIT or

EXT. OUTPUT = {NOT USED, TEMPBUS or INHIBIT}

FLASH ALARM
OUTPUT

ALARM OUTPUT = {N.C. or N.O.}

LANGUAGE = {ENGLISH or FRANCAIS}

POINT B USED = {YES or NO}

PASSCODE = {0000 to 9999} (only if 0 or database is

SCROLL DELAY = {0.07 to 0.25} S

COPY CONFIG... Note the “...” indicating a

--- END ---

Table 4.8

FORCE ON}

= {YES or NO}

unlocked)

sub-menu.

4.3.5.1 “COPY CONFIG...” Sub-Menu

The “Copy Config” sub-menu is used to copy configuration parameters.

COPY CONFIGURATION Sub-Menu

DEFAULTS TO COMMON (copies the Factory default COMMON

DEFAULTS TO A (copies the Factory default Point parameters to

DEFAULTS TO B (copies the Factory default Point parameters to

A TO B (copies Point A settings to Point B)

B TO A (copies Point B settings to Point A)

--- END ---

Table 4.9

parameters to memory)

control Point A)

control Point B)

nVent.com | 17

4.3.6 “COMMUNICATIONS SETUP...” Sub-Menu

The settings found in this sub-menu must be configured whenever an optional
communications board is installed in the Control Module. These parameters are common to
both control points, EXCEPT the “HTCBUS ADDR”, “MODBUS ADDR”, and “MODBUS SUBADDR”
parameters, which must be defined for each control point individually.

CONTROL SETPOINT = 20°C
LO TS 1 = -10°C
LO LOAD = 1.0 A

HI GFI = 50 mA
GFI TRIP = 75 mA
TS ALARMS CONFIG...
OTHER ALARMS CONFIG...
POINT SETUP...
COMMON SETUP...
COMMUNICATIONS SETUP...

--- END ---

COMMUNICATIONS Sub-Menu

PROTOCOL = {HTCBUS or MODBUS ASCII

HTCBUS ADDR = {1 to 1,6777,215} (only if PROTOCOL= HTCBUS)

MODBUS ADDR = {1 to 247} (only if PROTOCOL is not

MODBUS SUB

ADDR

or MODBUS RTU}

HTCBUS)

= {0 to 31} (only if PROTOCOL is not

HTCBUS)

BAUD RATE = {AUTO or 9600 or 4800 or

2400 or 1200 or 600 or 300}

PARITY = {NONE or ODD or EVEN} (only if PROTOCOL is not

HTCBUS)

HARDWARE = {NONE or MODEM or RS-232

or RS-485}

DRIVER = {AUTO or RS-485 or RS-232

or MODEM}

PROFILE = {AUTO or

FLOW CONTROL RS-232 or
STANDARD RS-232 or
3-WIRE RS-232 or
RS-485 or

EXTERNAL MODEM or
1200 BAUD MODEM or
300 BAUD MODEM}

Tx DELAY = {0.00 to 2.50} S

--- END ---

Table 4.10

18 | nVent.com

SECTION 5 MAINTENANCE

5.1 OPERATOR MAINTENANCE

5.2 REPLACEABLE PARTS

SECTION 6 SPECIFICATIONS

The 920 Series Operator Console is designed to be a maintenance free product. No regular
maintenance should be required.

There are no user-serviceable parts in the 920 Series Operator Console. The unit is modular
and easily changed out in the field in a matter of minutes. Those units appearing inoperative
should be returned to the nearest RAYCHEM Service Center for service.

WARNING:

Tampering with the 920 components without approval from nVent could result in voiding the
warranty of the product.

System Ratings

Storage Ambient –40 to +185ºF (–40 to +85ºC)

Approvals CSA C/US
Classification Cl I, Div 2, Grp A,B,C,D and Ex nA IIA,

IIB, IIC

920 Series Operator
Console

Operating Temperature –40 to +140ºF (–40 to +60ºC)
Power Requirement +9Vdc nominal, 500 ma max.

IMPORTANT: Specifications are @ 25ºC unless otherwise noted and are subject to change
without notice.

T-code: T6 and Ordinary

areas

nVent.com | 19

North America

Tel [phone]
Fax [phone]

[e-mail]

Europe, Middle East, Africa

Tel [phone]
Fax [phone]

[e-mail]

Asia Pacific

Tel [phone]
Fax [phone]

[e-mail]

Latin America

Tel [phone]
Fax [phone]

[e-mail]

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nVent reserves the right to change specications without notice.

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