Fairford Electronics QFE Series, Руководство пользователя

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Programming
page 5-14
QFE
FD8420 issue02_F
5.3.3 The Basic Menu
The Basic menu holds the parameters which control the primary functions of the unit (see
Figure
5.3.3 ). Changing the values of these parameters will vary the starting and stopping
duties, the trip protection set for the unit and the source of the start signal (
Keypad
or
Remote
). The following section briefly details what each menu item in the menu will do.
Disable Starter?
- This parameter disables the starter. Whilst the unit is
disabled it will not comply with a start signal. Disabling the starter also allows the user to
change certain parameters which cannot be changed whilst the unit is enabled (such as
Password, and Station Number).
Enable Starter ?
- This parameter enables the starter. Whilst the unit is
enabled it will comply with a start signal. Some parameters cannot have their values changed
whilst the unit is enabled.
Starting
- This sets the source for the start signal. If set to
Keypad
the unit will start/stop when the
Start/Stop
button on the user interface is pressed. If set
to
Remote
the unit will start when signalled to do so by an external circuit.
Start Pedestal
- This is the percentage of the unit’s rated supply voltage,
that is applied to the load before the ramp starts.
Start Time
-
This is the time the unit takes to ramp up from the
Start
Pedestal
(U
START
) to the maximum applied voltage (U
MAX
)
.
Stop Pedestal
- This is the percentage of the unit’s rated supply voltage
that the applied voltage falls to, at the end of the stop ramp (U
STOP
).
Stop Time
-
This is the time the unit takes to ramp down from the
maximum applied voltage (U
MAX
) to the
Stop Pedestal
(U
STOP
)
.
Notes;
1. This is the Start Pedestal voltage (P 11).
2. This is the Stop Pedestal voltage (P 16).
3. This is the supply voltage minus the voltage that is dropped across the
QFE.
I
LOAD
Time
U
LOAD
Time
U
MAX
3
U
START
1
U
STOP
2
Stop Time,
(P17)
Current
Limit Level
(P30)
Start
Time
(P12)
Figure 5.3.3 ‘Basic’ Menu Explained