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Configuration and programming of the Advanced Power
Controller can be performed with a keypad (GFW/GPC-OP)
or preferably with a PC installed with the special GF_eX-
press application software and connected to the instrument
via a USB cable (F055002), which can be ordered from
Gefran.
For more information on programming with the keypad, see
chapter "5. Using the GFW/GPC-OP keypad".
For more information on programming with a PC, see the
GF_eXpress documentation available at www.gefran.com.
Caution! Advanced knowledge of the problems
and techniques associated with control is required
3.1.
Parameter legend
1
2
3
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NOTE: 16 bit data is integer type. Decimal representation is virtual only and must be managed by the display device. A
maximum of 16 continuous 16 bit register may be read at one time. See Modbus Address Manual for full details.
1.
Parameter address in Single-node mode.
2.
Parameter address in Multi-node mode.
3.
Parameter format, which can be:
•
bit,
•
16 bit,
•
32 bit.
4.
Menu address with the GFW/GPC-OP keypad.
5.
Acronym by which the parameter is identified.
6.
Indicates whether the parameter is global or only af-
fects a particular module.
7.
Complete path of the GF_eXpress menu.
8.
Parameter attribute:
•
R = the parameter is read-only,
•
R/W = the parameter can be read and written.
9.
Indicates whether the parameter value remains stored
even after the controller is switched off.
10. Indicates the type of parameter.
With 16-bit parameter it can be:
•
Unsigned Short,
•
Short,
•
Float (the position of the decimal point is indicated
in brackets).
3.
CONFIGURATION
4
5
6
7
81901A "MSW_GPC-40/600A"_03-2021_ENG_page 13
to correctly set the parameters needed to con-
figure the Advanced Power Controller so that it
meets the application requirements.
Caution! Before commissioning the controller, the
user must ensure that the parameters are set cor-
rectly to avoid damages to persons or property.
If you are unsure of your skills or not fully aware of the
potential consequences of incorrect parameter settings, we
advise you not to proceed with the configuration.
If in doubt, or if you would like some clarification, please
visit www.gefran.com or contact the Gefran Customer Care
service.
14
With 32-bit parameter (16-bit LSW at parameter ad-
dress + 16-bit MSW at parameter address + 1) it can
be:
•
Unsigned Int,
•
Float32 (the position of the decimal point is shown
in brackets).
11. Unit of measurement of the value managed by the pa-
rameter. The unit of measurement can be unique or
depend on other configuration choices, such as the
temperature unit, which can be set either to Centigrade
or Fahrenheit.
Not all parameters have units of measurement.
12. Factory parameter value.
13. Value that the parameter can take. The value can be of
two types: discrete or belonging to a range of values,
typically numerical. With a discrete value, all possible
values are listed. With value ranges, the minimum
and maximum values that the parameter can take are
shown.
14. Full description of the parameter.
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9
10
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