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NTT 240/460
Operation mode
Installation and user guide
Rev: 4.0
‘Feedback’ sub-menu item allows to choose correct feedback and to enable motor cogging compensation:
1.
“Incr. Encoder without HALL”
2.
“Incr. Encoder with HALL”
3.
“HALL only”
4.
“Encoder SSI”
(absolute encoder)
5.
“Sensorless”
6.
“Resolver”
(with FEEDBACK R option only)
!
Ensure to select correct feedback type before connecting to motor.
All H.D.T. drives, in standard condition, that is no feedback reversing and default factors values (please see
), consider that increasing feedback counter is related to a clockwise rotation of the motor,
viewed by front shaft side.
6.03.2.e
Incremental encoder with/without HALL sensors
It’s necessary to set correctly:
•
Pulse/Revolution
: encoder pulse number per round.
•
Offset
: offset encoder (only for HALL management)
•
Encoder input
: set input type between Line Driver and
Open Collector/Push-Pull topology.
Other parameters are:
•
Reverse Feedback
: encoder counter is reversed related to
motor rotation.
•
Cogging compensation
: motor cogging mapping.
If incremental encoder without HALL sensors is used, after SWITCH-ON command, drive will perform a rotation
angle, more or less evidence, related to real shaft position. I’s possible to perform this procedure at first start, at
every start or at every reset command, as set into drop-down menu.
If incremental encoder with HALL sensors is used, it’s mandatory to correctly set offset-encoder parameter, set
to 0° for all H.D.T. motors; otherwise perform the autophasing procedure if third part motor is used (
Motor cogging map is available only if encoder provides zero index.
Connection is located into J5 connector (please see
“5.08 J5 connector: Feedback 1” pag. 36
1. V power to the feedback of used motor: +V (pin 10) and 0L (pin 11) and sensing pin if available (pin
9-18), otherwise leave them not connected for feedback at +5V or short-circuit them for feedback up to +9V.
2. connect the incremental signals: A+ (pin 1), A- (pin 2), B+ (pin 3), B- (pin 4).
3. if available, connect three HALL signals: HA (pin 13), HB (pin 14) e HC (pin 15).
4. if available, connect encoder zero index: Z+ (pin 5) and Z- (pin 6).
5. if available, connect motor temperature sensor PTC (pin 7-8).
6.03.2.f
HALL sensors only
For a trapezoidal control (DC brushless motors), only HALL sensors feedback is used. It’s necessary to enter offset
parameter. Autophasing procedure is not available.
Motor cogging map is not available.
Connection is located into J5 connector (please see
“5.08 J5 connector: Feedback 1” pag. 36
1. V power to the feedback of used motor: +V (pin 10) and 0L (pin 11) and sensing pin if available (pin
9-18), otherwise leave them not connected for feedback at +5V or short-circuit them for feedback up to +9V.
2. if available, connect three HALL signals: HA (pin 13), HB (pin 14) e HC (pin 15).
3. if available, connect motor temperature sensor PTC (pin 7-8).
Содержание NTT 240
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