INSTALLATION
3-7
MA-5151-ENG
PATTERN CONTROLLER STARBI
Additional configuration
Enable / disable temperature ok
The option to ENABLE / DISABLE the temperature OK input has been added.
This permits operation without connecting the melter used to send the signal
when the correct temperature has been reached and operation with a cold
glue unit.
Warning:
If this input is ignored and hot melt adhesive is used, the unit might
be tripped on a cold solenoid valve and this could damage the solenoid valve or
module permanently.
Voltage activation time (PWM)
A programmable time has been added as part of the 24 V voltage activation
time. It works as follows:
A programmable time has been added as part of the 24 V voltage activation
time. It works as follows:
The activation signal is divided into two parts: the first part, in which a fixed
voltage of 24 V is programmed, and a second part, in which the signal is
divided between 0 and 24 V at a frequency of 5 Khz. The resulting voltage in
this second part will be halved (approximately 12 V) when the signal is divided,
(see example below).
This method has various advantages when compared to the use of the
solenoid valve. A very small current passes through the coil, switching to
OFF very quickly, reducing the impact on the solenoid valve and extending its
service life as a result. In addition, a lower current means that the solenoid
valves will not overheat due to prolonged use.
Warning:
this time can be modified, but we do not recommend increasing this
time value since the advantages mentioned above would be lost.
24 V
20 ms
12 V
10 ms
10 ms
Example: