Valin AccuTrace User manual

COMPLEX TECHNOLOGY MADE SIMPLE
Single & Dual Zone Heat
Trace Control Panel

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
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Single & Dual Zone Heat Trace Control Panel | Valin Corporation
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SAFETY INFORMATION
ACCUTRACE™ OVERVIEW
Specifications
INSTALLATION
Mounting
Dimensions
Equipment Ratings
Customer Wiring
• RTD Wiring
• Power Supply Wiring
• Load Wiring
• Alarm Wiring
• Communications Wiring
OPERATION
Getting Started
Security and Logging in
Menu Hierarchy
Home Screen
• Alarm Clearing
SET UP
Main Menu
System Settings Menu
• Modes Menu
• Alarm Settings Menu
• System Voltage Menu
• PID Settings Menu
GFEP Test Menu
Admin Menu
COMMUNICATIONS
Serial Port Settings
Ethernet Port Settings
Modbus Registers
TROUBLESHOOTING
AGENCY APPROVALS
CONTACT US
TABLE OF CONTENTS
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565
65
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Single & Dual Zone Heat Trace Control Panel | Valin Corporation
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Various symbols are used across this User Manual to caution the reader on potential safety hazards and
additional operation information. These symbols must be followed to reduce the risk of injury or damage. Below
is an index containing definitions of each symbol.
Pre-Start Up Inspection
Before installing the AccuTrace™ panel, take time to check the wiring and connections on the unit. Some
components can be aected during shipping by environmental factors, so it is important to inspect the panel
before power is applied.
SAFETY INFORMATION
WARNING - Refer to supplemental information listed next to this
symbol for details on specific hazard.
ELECTRICAL HAZARD - Hazards referring to electrical
conditions such as high voltage. Refer to specific details listed next to
symbol.
WARNING! Hazardous voltage can cause severe injury or death.
Turn OFF power before servicing the circuit.
WARNING! Maximum total load shall not exceed rated
capacity of the panel as listed in the equipment
ratings section.

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
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ACCUTRACE™
Single & Dual Zone Heat Trace Control Panel
Valin’s AccuTrace™ control panel incorporates the latest technology and is packed with features designed to help
optimize your heat trace system. The easy-to-use touchscreen and non-incendive internal components allow the
panel to be used in hazardous locations (Class I, Division II, groups A, B, C, and D) while providing an easy to use
interface.
The AccuTrace™ panel utilizes PID algorithms designed to maintain temperature in the most challenging
applications. The panel has 40 amp Solid State Relay controls and a multitude of alarms, including high temp,
low temp, high current, low current, sensor failure and Ground Fault Equipment Protection, creating a package
of unrivaled performance.
For extreme cold starts and long circuit lengths, the AccuTrace™ panel employs a soft start feature, reducing the
inrush current. This helps mitigate potential high current alarms that are a known problem during startups.
The AccuTrace™ has a 7”, full color, easy-to-navigate display. It can be programmed in minutes, reducing project
commissioning time and bringing the heat trace on line faster. Remain connected with protocols that include
Modbus TCP and Modbus 232/485. AccuTrace™ also oers 3 levels of password protection, to further ensure the
highest security while allowing quick access in the field, as appropriate.
FEATURES
Input
• Sensor Type 3-wire RTD, 100 Ω PT, 0.00385 Ω/Ω/˚C,20 Ω balanced lead wire (-200˚C – 850˚C)
Output
• SSR Power Switching
• 1 or 2 circuits
• 40 Amps per Circuit
OVERVIEW
WARNING! Maximum total load shall not exceed rated
capacity of the panel as listed in the equipment
ratings section.

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
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OVERVIEW
Control Modes
• Auto PID
• On/O-Control mode
»Dead band, (˚F) Range: +/- 100˚F
• Manual-Range: 0 – 100%
• Soft Start
Settings
• Alarm Types: Low & High Temperature, Low & High Current, High GFEP, Sensor Failure
• Alarm Relays: 24 VDC, 250 mA
• Alarm Contact State: N.O., closes on alarm
• Output on Sensor Failure: Auto Transfer to Manual Mode, Range: 0–100%
• 3 Levels of password protected security
Display, HMI, Indication
• 7” Full Color Resistive Touch Screen
Alarms
• Temperature (PV) Range: 0˚F to 720˚F (-18˚C to 382˚C)
• Low Temperature Alarm, Range: 0˚F to 720˚F, O (-18˚C to 382˚C, O)
• High Temperature Alarm, Range: 0˚F to 720˚F, O (-18˚C to 382˚C, O)
• Low Current Alarm, Range: 1A – 40A, O
• High Current Alarm, Range: 1A – 40A, O
• GFEP, Range: 20mA – 80mA
• GFEP Alarm Condition, Alarm and Trip at GFEP Setpoint

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
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OVERVIEW
Communications
• Modbus RTU/RS-485 (2 or 4 wire), /RS-422
• Baud Rate, (Hz): 4800, 9600, 192K,38.4K, 57.6K, or 115.2K.
• Parity Range: None, even, and odd
• Modbus ID Range: 1–128
• Data Bits: 7 or 8
• Stop Bits: 1 or 2
• Modbus TCP
Operating & Environmental
• Temperature: -4˚F to 104˚F
• Power Supply: 100 to 277V 50/60Hz
• Enclosure rating: UL Type 12, 13, 4, 4X Fiberglass (Optional Stainless Steel)
• Approvals: UL/cUL 508A and Class I, Division 2, Groups A, B, C, D Hazardous Locations. (UL File: E503604)
Dimensions and Weight
• Weight: 13.2 lbs (5.9kg)
FRONT SIDE TOP

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
FIG. 2-1 VERTICAL
MOUNTING ONLY
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INSTALLATION
WARNING! AccuTrace™ utilizes Solid State
Relay (SSR) power switching. To dissipate the
heat generated from the SSR’s, the heat sink
located on the back of the enclosure must
be in an upright position. The panel must be mounted
vertically as shown below in Figure 2-1 to accomplish
proper heat dissipation.
WARNING! Installation of equipment must
be performed by qualified and experienced
personnel.
Mounting Location
Determine the mounting location based upon the
enclosure dimensions shown in the Overview Section.
If installed indoors the recommended materials include
metal surfaces, concrete, or wood. If mounting on drywall,
the construction requirements must be of at least ½”
thickness, supported by 2”x4” studs on 16” centers. If
installed outdoors, metals must be corrosion resistant
and woods must be sealed and treated for outdoor use.
Anchors must be capable of supporting at least 100lbs
each.

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
FIG. 2-2 CONDUIT SPACING
Trade Size of Conduit
(in.)
Bushing Overall
Diameter (in.)
1/2” 1”
3/4” 1-15/64”
1” 1-19/32”
1-1/4” 1-15/16”
1-1/2” 2-13/64”
2” 2-45/64”
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INSTALLATION
Conduit
All hubs and fittings shall be of Type 13, 4X to maintain
environmental ratings of enclosure. Installer shall use earthing rings
or equivalent to provide continuity of grounding between all conduit
entries. Installer shall maintain the minimum spacing between
conduit centers as noted in Figure 2-2. Conduit must be routed
through the base of the enclosure as shown in Figure 2-3 below.
The recommended area for entry is shown in Figure 2-4 below.
FIG. 2-3 CONDUIT ENTRY OVERVIEW
FIG. 2-4 CONDUIT ENTRY AREA

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
Hardware
The pair of brackets that come with the AccuTrace™ panel are designed to provide the necessary airflow to the
heat sink on the back of the enclosure. Ensure that airflow is not blocked or restricted in any way. Maintain at
least 12” of clearance above and below the AccuTrace™. Refer to Figure 2-5 below.
The heat sink must be inspected every season to confirm that no debris or objects are in contact with the heat
sink. To dislodge debris, use high pressure blasts of clean air that will not damage the fins.
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FIG. 2-5 ACCUTRACE™ CLEARANCES
WARNING! Failure to comply with Valin instructions on proper heat sink
clearances or panel mounting can result in impaired panel performance,
personal injury, or damage.

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
Customer Wiring
Equipment Ratings
Voltage Rating 100-277VAC, 50/60 Hz*
Current Rating 40A per circuit
Number of Circuits 1 or 2
Ambient Temperature Rating -20°F to +104°F
Altitude Rating Fully rated up to 6,500 Ft (2,000 Meters)
VA consumption rating on electronics 10W**
Maximum RTD output 1.25V, 7mA
Pollution Rating Degree 2
Over Voltage Category III
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*2 CIRCUIT UNITS MUST HAVE SEPARATE VAC SUPPLY FEEDS
**THE ELECTRONICS ARE PROTECTED BY ½ AMP 600VAC FUSES
WARNING! Equipment is rated for use in Class I. Div II. Groups A, B, C and D
hazardous environments. Install in accordance with the National Electrical
Code (NEC) or Canadian Electrical Code (CEC), and any applicable local
codes for USL/CNL panels, based on the installation location.
WARNING! Explosion Hazard. Do not disconnect panel while the circuit is
live or unless the area is known to be free of ignitable concentrations.
WARNING! Explosion Hazard. Do not remove or replace components unless
power has been disconnected or the area is free of ignitable concentrations
of flammable gases or vapors.
WARNING! Hazardous voltage. Installation and wiring must be performed
by qualified and experienced personnel. All wiring must be in accordance
with the all local and National electric Codes. Failure to do so may result in
damage to equipment, injury, and/or death.

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
Refer to Figure 2-6 below for terminal locations.
Each section will have an electrical schematic
for specific wiring. Dashed lines signify customer
wiring.
RTD Wiring (Figure 2-7)
• Torque value 4.5 lb-In (0.5 Nm).
• Use copper conductors only, 300V min, 75˚C
min.
• Class 2 control circuit, use class 2 conductors.
• Wire strip length 7.5mm.
• 30-14 AWG.
• RTD 2 or 3 wire, platinum 100 Ω.
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FIG. 2-6 BOARD LAYOUT
FIG. 2-7 RTD TERMINATIONS
Internal Wiring

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
Supply Power Wiring (Figure 2-8)
• Torque value 17.7 lb-in (2.0 Nm).
• Use copper conductors only, 300V min, 75˚C min.
• Wire strip length 8.5mm.
• 14-8 AWG.
• Power Input 100-277VAC.
• Branch circuit protection rating must not exceed 50A per circuit.
• Branch circuit protection shall be provided by installer. Branch circuit protection may be any of the following:
»Instantaneous trip MCCB
»Adjustable trip MCCB
»Class J or T fusing
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FIG. 2-8 SUPPLY POWER TERMINALS

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
Load Wiring (Figure 2-9)
• Torque value 17.7 lb-in (2.0 Nm).
• Use copper conductors only, 300V min, 75˚C min.
• Wire strip length 8.5mm.
• 14-8 AWG
FIG. 2-9 LOAD TERMINALS
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Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
• Torque value 4.5 lb-In (0.5 Nm)
• Use copper conductors only, 300V min, 75˚C min
• May be Class 1 or Class 2 control circuit. Use Class 1 conductors for Class 1 circuits. Use Class 2 conductors
for Class 2 circuits.
• Wire strip length 7.5mm
• 30-14 AWG
• Contact rating: 250mA @ 24VDC
• Max voltage supply: 30VDC
FIG. 2-10 ALARM TERMINATIONS
WARNING!
(-ALARM) terminals for circuit 1 and circuit 2 are internally connected.
Ensure that the polarity is the same on (-ALARM) terminal on both boards to avoid short circuit. See
Figures 2-12 and 2-13 for proper wiring.
Alarm Wiring (Figure 2-10)
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Internal
Wiring

Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
• For 2 circuit DC connection, refer to figures 2-11 – 2-13 below:
FIG. 2-11 ALARM WIRING
EXAMPLE 1
FIG. 2-13 ALARM WIRING
EXAMPLE 3
FIG. 2-12 ALARM WIRING
EXAMPLE 2
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Single & Dual Zone Heat Trace Control Panel | Valin Corporation
FIG. 2-14 INTERNAL DOOR COMPONENTS
INSTALLATION
Serial Communications Wiring (Figure 2-14 - 2-16)
• RS-422/RS-232/RS-485 2Wire/4Wire
• RS422/RS485 max cable length 4000ft
• RS232 max cable length 50ft
• AccuTrace™ port: D-Type 9-pin female connector, standard
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Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
RS422/RS485 4 Wire Cable Connections
RS485 2 Wire Cable Connections
FIG. 2-15 FOUR WIRE CONNECTION
FIG. 2-16 TWO WIRE CONNECTION
DB9 Male
AccuTrace™ Port
Pin # Signals
1TX+
4RX+
5SG & SHIELD
8TX-
9 RX-
4 Wire
RS422/RS485
Cable
Signals
RX+
TX+
SG
RX-
TX-
2 Wire
RS485 Cable
Pin #
A
SG
B
DB9 Male
AccuTrace™ Port
Pin # Signals
1TX+
4RX+
5SG & SHIELD
8TX-
9 RX-
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Single & Dual Zone Heat Trace Control Panel | Valin Corporation
INSTALLATION
Ethernet Communications (Figure 2-17)
• Fully compliant with IEEE 802.3 / 802.3u standards.
• 10/100 Mbps support.
• Standard shielded connector RJ-45 female jack, with speed and link activity LED indicators.
FIG. 2-17 ETHERNET PORT
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Single & Dual Zone Heat Trace Control Panel | Valin Corporation
OPERATION
Getting Started
Upon powering up, the AccuTrace™ HMI will display a red LED indicator and a splash screen (Figure 3-1). Once
initialization is complete, the Home Screen (Figure 3-2) will appear.
Security and Logging In
In order to view or edit the parameters, AccuTrace™ requires a log in based on the personnel accessing it. There
are 3 levels of access available. Below is a chart describing the security levels. Only the Home Screen may be
viewed without logging in.
FIG. 3-1 SPLASH SCREEN FIG. 3-2 HOME SCREEN
Security Levels
Menu Administrator Maintenance Operations
Home Screen Full access Full access Full access
Active Alarms Full access Full access Full access
Modes Full access Full access Full access
Alarm Settings Full access Full access No access
GFEP Test Full access Full access No access
Diagnostics Full access Full access No access
Admin Full access No access No access
System Voltage Full access No access No access
PID Settings Full access No access No access
Network Settings Full access No access No access
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