Indice de révision : G 9 6102
To have access to the calibrating menu, press keys 4 and 5 at the same time until the following
screen appears:
The calibration menu permits access for adjustment
of the
GNM
parameters. Access to the menu is done
by means of a 4-number code. The "FATORY" code
is «1111». Enter code by pressing 2 and 3 and
validating key 4.
3.2.2.1. Code entry
Scroll the first figure upwards or downwards with keys 2 and 3 .
Select with key 4 , then go to the next figure etc. In case of an error, press key 5 ). Validate code
with key 4 .
After having correctly entered and validated the code, one will read for example:
3.2.2.2.
Di/Dt
Soft Parameters
MP3
,
P3
,
SP3
,
RP3
The
Di/Dt
detects sharp changes in current and the sensitivity can be adjusted. The
GNM 100
is built
with two
Di/Dt
control systems. The first
Di/Dt
control is detected by the analog portion of the circuit
board and can not be disabled or adjusted. Its reference is called “Hard
Di/Dt
” and is set at a value of
50mA/s. The second
Di/Dt
control is referred to as the Di/Dt soft and can be adjusted to the user’s spe-
cific application.
MP3
:
Di/Dt
Soft Function
This is a switch that activates the
Di/Dt
soft programming circuitry.
P3
:
Di/Dt
Soft Threshold Value
This value is the maximum change in current per time value the
Di/Dt
soft programming will allow before
giving an error. This value is expressed in milli amperes per second (mA/s) and can be adjusted in the
following range.
SP3
:
Di/Dt
Soft Minimum Return Voltage Threshold
This value is minimum voltage return value that must be obtained before the
Di/Dt
soft programmed cir-
cuitry is enabled. This value is expressed in kilovolts (
kV
) and can be adjusted in the following range.
7 means that the module is in the calibration
menu
8 T = trigger typeint = internal - ext. = external
9 V = voltage set pointint = local - ext. = dis-
tance
MP3
= 1
Di/Dt
soft programming is enabled
MP3
= 0
Di/Dt
soft programming is disabled
P3
Minimum adjustment 2 mA/s
P3
Maximum adjustment 24 mA/s
SP3
Minimum adjustment 0 kV
SP3
Maximum adjustment 10 kV
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