12
VRT300 SERIES
VRT300 and VRT300 U
STEP
PRESS
EFFECT
PRESS
NOTES
1
Programming start
Keep pressing for 5 seconds until the ON
PRG LED switches ON.
2
Programming
“%In”
Set the maximum current variation allowed as a
percentage (5-10-20-30%) of the In. rated
value.
Default 5%
3
Going to the
"start
d."
programming step
Start delay: fan start time during which no
alarm is generated
4
Selection of the time in seconds
"
start d."
Select the desired time
(5-10-20-30 sec.)
Default 5
5
Going to the
"trip d."
programming step
Trip delay: time during which the
alarm persists, necessary
for signalling
6
Selection of the time in seconds
“trip d.”
Select the desired time (5-10-
20-30 sec.)
Default 5
7
Motor start
for automatic calibration
CAL LED ON
To perform the "automatic calibration" all motors
must be connected as per final configuration.
At the START the motors are
switched ON for 60 seconds, the
CAL LED flashes and LEDs 0-5-10-
20-30 light up in sequence.
When the calibration is completed, the
control unit resets and goes
into REMOTE mode
N.B.: any connection or programming errors might cause fan malfunctions.
ATTENTION:
We recommend you check the control unit before starting the device.
The default parameters set by TECSYSTEM might not suit your requirements.
Programming the device is the end user’s responsibility: the set alarm thresholds and the enabled functions
described in this manual must be checked (by a specialized technician) referring them to the application and
system characteristics on which the control unit is installed.
PROGRAMMING
