Fairford Electronics QFE Series, Руководство пользователя

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Programming
page 5-16
QFE
FD8420 issue02_F
Optimising
Level
Figure 5.3.4 The Advanced Menu
Notes;
1. This is the supply voltage minus the voltage that is dropped across the
QFE.
2. This is the Kick Pedestal voltage (P13).
3. This is the Start Pedestal voltage (P 11), which the unit drops to after the
kick pedestal has passed.
4. This is the Stop Pedestal voltage (P 16), which can be set to values
lower than 40% of U
MAX
if Low Volts Stop is on.
5. This relay brings in the contactor that supplies the three phase AC
mains to the unit in the standard wiring configuration (see Electrical
Installation section 2.3.1)
6. Represented by the thick dotted line.
7. Represented by the thick unbroken line.
NB. Please note that the above diagram is intended for use as a GUIDE
ONLY.
U
MAX
1
U
KICK
2
(P13)
U
START
3
U
LOAD
Kick
Time
(P14)
Dwell
Time
(P15)
Optimising, with
Optimising Rate
(P19) = 4
6
Optimising, with
Optimising Rate
(P19) = 30
7
Stop Time (P17)
U
STOP
4
Time
U
LOAD
Time
Unit starts firing
at this point.
Unit receives
START
command
here
Contactor
Delay (P71)
Main Contactor
Relay closes
here
5
.
Trip Sensitivity
- This parameter sets a tolerance level for the unit’s
sensitivity towards trips. The higher the value this parameter is set to, the less sensitive the
unit is to trip conditions. This is set to one (1) by default.
Station Number
- This parameter holds the local network ID for this
unit. This is set to one (1) by default.
Firing Mode
-
This parameter holds a value which corresponds to one
of six different firing modes which are intended for use with the following load types;
Firing Mode 0
, for normal squirrel cage motors connected in star or delta (with
the soft start unit outside the star or delta configuration);
Firing Mode 1
, for applications where the soft start unit is connected inside the
delta configuration of a squirrel cage motor;
Firing Mode 2
, for static loads with the soft start unit using a closed loop control
method (QFE+ only);
Firing Mode 3
, for static loads with the soft start unit using an open loop control
method;