page 8 of 16 File: SG1024_r1eng - April 2017 - Technical note: SG 1024
PM 250
SG 1024 S
olid
S
tate
M
icrowave
G
enerator
until the new program is stored, but be sure no enable signal is
active when upgrading.
The upgrade of the firmware embedded in the SG 1024 is
released as a “.zip” archive named “program_name.zip”.
Unpacking the .zip archive you generate:
- a directory named “program_name” containing the micro
code to be loaded,
- an executable program named “SendApplicationProgram.bat
”- and the loader “sRecLoad.exe”.
Once unpacked the .zip program
- enter in the folder “program_name”,
- switch-on the SG1024
- run
whithin 2 seconds
the program
“SendApplicationProgra-m.bat” (which launches
sRecLoad.exe
application)
(This is the maximum time that the microprocessor bootloader
waits for new code to be loaded).
In case the program
sRecLoad.exe
sends data whithin 2
seconds, the microprocessor bootloader stores the new data
on the internal flash memory, installing the new release, and
automatically executes it when the download is done.
Software release
Release no
.
PSU version
Note
1.00
v.2 “Display”
Compatible with Front
Panel Vers. 7.50
2.10
v. 1 & 2
New CPU/ Enable Bus
comm/ Full scale 1 kW
POWER ENABLE: it’s a digital input located on pin 4 CONN
# 2, has value ON/OFF. It must be ON to go in MW-ON
status and generate microwave energy. It can be set OFF at
any time.
OPERATING FREQUENCY:it is a control parameter. It can
be set automatically if the Automatic Tuning is enabled, or
manually otherwise. If the Automatic Tuning is disabled the
frequency can be set
- through the display in manual mode, or
- via software through the USB serial port or the fieldbus
module (the latter option only for SG 524 vers. 1). It can not
be set in external mode using a signal.
AUTOMATIC TUNING: is a feature of the unit based on a
patented algorithm (US patent 6,020,794).
Due to the possibility to change the operating frequency,
the user can tune his system choosing between two modes.
The automatic tuning can be enabled either by the display
in manual mode or via software in remote mode. Once the
automatic tune is enabled the software performs the algorithm
when the unit goes in MW-ON status and it runs until a status
changing occurs. The goal of this function is to perform a real
time tuning of the load even if it changes continuously.
REVERSE POWER ALARM THRESHOLD: Threshold can
be set by the user in order to limit the reflected power. This
threshold can be set freely by the user, depending on the pro-
cess requirement. The unit can bear a total reflection condition
for a maximum time of 1 second. It can be set through display
command (and via fieldbus for vers. 1)
INTERLOCK FUNCTION: managed by CONN#2 pin 10-23
It is an input that must be powered with signal 24V= OK. If
the signal si removed (= 0 V) an alarm is generated.
Firmware upgrade
The software stored on the CPU can be upgraded to a newer
version using the USB port on the unit, connected to a PC.
Important remark
: at power-on, even if a software is already
stored, the microprocessor enters a “BOOTLOADER” status,
lasting 2 seconds, during which it is possible to overwrite,
through the serial USB port, the stored code.
If no new code is loaded within 2 seconds, the previously
stored one is run.
To upload a new program through the bootloader, simply
connect the SG 1024 USB port to the PC USB port.
The first time you must install the USB driver through Windows
Update. During this operation the unit has to be switched OFF.
Once the PC detects the device the firmware of SG 1024 can
be upgraded.
No external switch must be operated, and the unit does not start
