JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS17x, 23x, 34x, 43x
163
Zero point offset Example.
Setup done before start:
- Zero search velocity = -128 rpm
- Zero search position = - 10000 counts
6.5.9
Setting up zero search without MacTalk
If MacTalk is not used for setting up parameters/registers related to the zero search fea-
ture it must be done as follows.
The motor contains a number of registers which can be accessed from various protocols
depending at which options the motor has.
Protocols available are for example Ethernet (EthernetIP, PROFINET etc.) and CAN-
open, Modbus or the MacTalk protocol.
Each field in MacTalk described earlier in this chapter is accessing a register in the motor.
The registers that are relevant for zero search operation are:
Zero search basic settings:
R38
P_HOME
MacTalk name: “Zero search position”
The found zero point is offset with this value.
See also
R40
V_HOME
MacTalk name: “Zero search velocity”
The velocity to use during zero search.
Set a negative velocity to search in the negative direction.
See also
R41
T_HOME
MacTalk name: "Zero search torque (0-100%)"
The measured torque where the zero search must end.
R42
HOMEMODE
MacTalk name: “Zero search mode”
Selects the zero search type that should start on power up.
See also
TT2192-02GB
The motor moves in negative
direction with 128 RPM defined by
«
» setting
Zero search velocity
Step 1
Step 2
START
The motor moves in positive direction with 2 RPM which is
1/64 of the defined «Zero Search Velicity» and the actual
position counter is set to the «Zero Search position» which
is -10000 count..
Zero search sensor
Position before zero search
(“Sensor Type 2”)
Motor decelerate and stops behind the sensor
Step 3
The motor is set back in the selected «Start up mode» which
in this example is «Position mode». Since the target position
is default 0 it moves to position 0 and stops. The zero search
is finished !
Summary of Contents for MIS17 Series
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