User manual - ATR227 -
13
7.8 Memory Card (optional)
Parameters and setpoint values can be easily copied from one controller to others
using the MEMORY CARD.
Enter the Memory Card
with the controller not connected to power supply.
At starting display 1 visualizes
memo
while display 2 visualizes
SkiP
(
only if into the
Memory are stored correct values
). Pressing
c
display 2 visualizes
Load
. Press
SET
to
confirm. The controller loads the new values and restarts.
NB
: parameters may be copied only on controllers of the same model!
Updating Memory Card.
To update the memory card values, follow the procedure previously described, setting
SkiP
on display 2 so as not to load the parameters on controller.
1
Enter configuration (password 1234): Exiting configuration mode, the settings will be
automatically saved on Memory card.
7.9 Regulation control (only on ATR227-12ABC)
ATR227 integrates different types of control for the regulation of the SSR command
output, selecting parameter 43
o.cL.t.
as follows:
7.9.a
tiME
Time control
For this type of control it is suggested to use a “zero-crossing” SSR.
Activation and deactivation of the output is related to the time selected on parameter
52
c.t.
. Ex. selecting a time of 10s and supposing a 30% percentage, the output will
remain active for 3s and inactive for 7s.
7.9.b
bSt.F.
Burst fire control
For this type of control it is necessary to use a “Non zero-crossing” SSR.
The “Burst-fire” control (1 cycle) is a duty cycle mode which consists of supplying a
series of complete mains voltage cycles to the load.
t
Load voltage
TF
0
TM
TNF
t
TF
0
TM
TNF
t
TF
0
TM
TNF
50% power TF = TNF
25% power TNF = 3 TF
0
75% power TF = 3 TNF
At 50% power, the modulation time is
40ms:
• 1 firing cycle (20ms at 50Hz)
• 1 firing cycle (20ms at 50Hz)
For a setpoint less than 50%:
• The firing time remains constant (1 cycle)
• The non-firing and modulation time
increases
For a setpoint greater than 50%:
• The non-firing time remains constant (1 cycle)
• The firing and modulation time increases.
1
In the event that, when turned on, the controller do not see memos, it means that there are no data on the
Memory Card, but you can also update their values.
