Nextron MASTERTRACE MS-2102, Руководство оператора

Страница: 32 / 55

6.2
MS-2102 Chapter 6 Setpoint Values
Setpoints Entering
Prior to operating the heat trace, you must enter process
setpoints, alarm levels and alarm output configuration via
front panel keypad and display, RS485 port or SCADA
system running user written software.
The MS-2102 leaves the factory with default setpoint
values shown in the message details. You can leave many
of the factory default settings unchanged.
Setpoint Access Security
The setpoint access security is achieved via the Program
Enable Dip Switch. You can program setpoints through
the keypad by setting the program enable dip switch to
the
ENABLE position. Access the dip switch by opening
the enclosure door and locating the switch at the bottom
of the board on the enclosure door. When setpoint
programming is complete, renturn the dip switch to the
disable position. Disabling program enable does not
restrict setpoint access through the communciations.
MESSAGE NO: S1-01 APPLIES TO: Control Module
DEFAULT VALUE: N/A VALUE RANGE: N/A
DISPLAY MODE: All RESTRICTIONS: None
MESSAGE NO: S1-02 APPLIES TO: Control Module
DEFAULT VALUE: HT M-1 VALUE RANGE: HT M-1 to M-2
DISPLAY MODE: All RESTRICTIONS: None
This function selects the heater circuit. Each heater circuit has a unique Heater Number
in a form of M-N. M is the Module Number of the Control Module and N is the heater
circuit within the Control Module. Press [VALUE ] or [VALUE ] and then press
[STORE] to select a heater circuit. For convenience and to reduce human error, the
Heater Name is also displayed.
MESSAGE NO: S1-03 APPLIES TO: Selected Heater
DEFAULT VALUE: yes VALUE RANGE: yes, no
DISPLAY MODE: Advanced RESTRICTIONS: None
This function enables control and monitoring for the heater circuit. You cannot access
setpoints and measured value messages unless the heater is enabled. Select
no if the
circuit is not used.
MESSAGE NO: S1-04 APPLIES TO: Selected Heater
DEFAULT VALUE: 20 °C VALUE RANGE: -50 to 500 °C, none, off
68 °F -58 to 932 °F, none, off
DISPLAY MODE: All RESTRICTIONS: None
This function sets the maintain temperature. For on-off control, the circuit is energised
if the Heater Control Temperature is less than the Heater Setpoint less the deadband.
The circuit is de-energised if the Heater Control Temperature is greater than the
Heater Setpoint plus the deadband. Both the PROPORTIONAL CONTROL and the
POWER LIMIT functions affect heater switching. If the Heater Setpoint is set to
none , then the heater circuit is on and has temperature monitoring with no tempera-
ture control. If the Heater Setpoint is set to off then the heater circuit is on and has no
temperature monitoring or control.
Operating
SETPOINTS:
OPERATING VALUES
HEATER ENABLED?
yes
HEATER SETPOINT:
150°C
Warning: As a minimum, enter setpoints in the
operating values group (S1) to ensure proper
operation of the heat trace.
SELECT HT M-1
NONAME