Elettronica Santerno SINUS K, User Manual

Page: 165 / 191

SINUS K
INSTALLATION
INSTRUCTIONS
165/ 191
13.6.7. T
UNING
T
RIMMER
Trimmer “RV1” installed on ES836/2 allows adjusting the encoder supply voltage. This can be useful for
encoders with intermediate voltage values if compared with factory-set voltage and can compensate voltage
drops in case of long distance between the encoder and the encoder board.
Adjustment procedure:
•
put a tester on the encoder supply connector (encoder side of the connecting cable); make sure that the
encoder is on.
• rotate the trimmer clockwise to increase supply voltage. Trimmer is factory-reset to obtain 5V and 12V
voltage (depending on dip-switch setting) in supply terminals. 5V configuration: power supply can range
from 4.4V to 7.3V; 12V configuration: power supply can range from 10.3V to17.3V.
NOTE
Output voltage cannot be adjusted by trimmer RV1 (jumper J1 in pos. 1-2) for
24V power supply.
CAUTION
Power supply values exceeding the encoder ratings may damage the encoder.
Always use a tester to check voltage delivered from board ES836 before wiring.
CAUTION
Do not use the encoder supply output to power other devices. Failure to do so
would increase the hazard of control interference and short-circuits with possible
uncontrolled motor operation due to the lack of feedback.
CAUTION
The encoder supply output is isolated from the common terminal of the analog
signals incoming to the terminals of the control board (CMA). Do not link the two
common terminals together.
13.6.8. E
NCODER
W
IRING AND
C
ONFIGURATION
E
XAMPLES
The figures below illustrate the electrical schematics and the dip-switch setup for the most popular encoder
models.
CAUTION
A wrong encoder-board connection may damage both the encoder and
the board.
NOTE
In all the figures below, dip-switches SW1.4, SW2.3, SW2.6 are set to ON, i.e. 77
kHz band limit is on. If a connected encoder requires a higher output frequency,
set dip-switches to OFF.
NOTE
The max. length of the encoder wire depends on the encoder outputs, not on
encoder board ES836. See the encoder ratings.
NOTE
Dip-Switch SW1.1 is not shown in the figures below because its setting depends
on the supply voltage required by the encoder. Refer to the dip-switch setting table
to set SW1.1.
NOTE
Zero notch connection is optional and is required only for particular software
applications. However, for those applications that do not require any zero notch,
its connection does not affect the inverter operation. See SINUS K’s Programming
Instructions Manual for details.