Instruction Manual

© BriskHeat
®
Corporation. All rights reserved.
24
LYNX
TM
System Instructions
GLOSSARY
Autotune
The controller will operate in On-Off mode for a period of time (typically 10-20 minutes) during which it will learn the behavior of the attached heater
to optimize its PID control algorithm. After Autotune is completed the module will automatically switch into PID control mode.
Baud Rate
The baud rate (measured in bits per second (bps)) refers to the speed the control modules will use to communicate on the RS-485 serial bus.
When using an Operator Interface the Baud Rate must be set to 115,200 bps.
Caution Alarm
This alarm is used to indicate an elevated temperature condition. The control module will change color and a message will display on the Operator
Interface to indicate this condition. The dry-contact / alarm relays on the Operator Interface will not change state and the heater will continue to
function in this condition. This alarm will not function during idle mode. The Caution alarm is typically set above the operating setpoint and below
the high alarm setpoint.
Control Mode
This setting allows different control modes to be selected. The options are PID, On-Off, Autotune, Manual Duty Cycle, and Disabled.
Disabled Mode
Disabled Mode is the default setting for LYNX controllers. In this mode the controllers will not energize the heater. When modules are moved from
one heater to another they will automatically return to Disabled Mode to prevent accidental heating.
Dry Contact / Alarm Relay
The Operator Interface features 9 dry contact relays. These relays are energized on system start and will de-energize if an alarm occurs or if the
Operator Interface is turned off. One dry contact is available for each of the 8 strings and there is a master connected to all strings (e.g. If an alarm
occurs on string 3, then the string 3 dry contact and the master dry contact will de-energize). This relay is energized on system start and will de-
energize if an alarm occurs or if the Operator Interface is turned off.
Enumeration
The complete, ordered listing of all items in a collection. The process by which the LYNX system discovers each module in a String for a system
and establishes an order for them by setting their Modbus addresses.
High Alarm
This alarm is used to indicate a critical temperature condition. The control module will change color and a message will display on the operator
interface to indicate this condition. The dry-contact / alarm relays on the operator interface will change state and the heater will turn off in this
condition. This alarm will function regardless of whether Idle Mode is enabled or not.
Idle Mode
This mode allows an alternate setpoint to be used to reduce power consumption during down-time or maintenance. This mode has its own unique
Setpoint, High Alarm, and Low Alarm settings.
Idle High / Low Alarm
Idle High and Low alarms only function when Idle Mode is enabled. They function the same as the standard High and Low alarms, but with Idle
Mode Setpoints.
Latching
Latching can be enabled or disabled for alarm conditions. Setting an alarm to be Latching will force an operator to manually clear the alarm. Non-
Latching alarms will automatically clear when the condition is no longer active.