EFKA FP220A5911
36
10 Setting the Basic Functions
10.1 Direction of Motor Rotation
Function
with
or
without
control panel
Parameter
Direction of motor rotation
(drE)
161
Parameter 161 = 0
Clockwise motor rotation (look at the motor shaft)
Parameter 161 = 1
Counterclockwise motor rotation
10.2 Transmission Ratio
Note
The transmission ratio must always be input, because only motors with integrated incremental transmitter will be used.
The transmission ratio should be determined and set as precisely as possible!
The transmission ratio between motor shaft and shaft of the sewing machine head must be input, so that the set speeds of
parameters 110...117 correspond to the sewing speeds.
Function
with
or
without
control panel
Parameter
Transmission ratio between motor shaft and machine shaft
(trr)
272
The transmission ratio can be selected within a range of 020...255 using parameter 272.
Example:
With a motor pulley diameter of 40mm and a sewing machine head pulley diameter of 80mm the value 50
can be calculated using the formula below. If the value 200 has been selected in parameter 272, it follows
that the motor pulley is double the size of the sewing machine head pulley.
Motor pulley diameter
Value of parameter 272 = ------------------------------------ x 100
Machine pulley diameter
10.3 Selection of Functional Sequences (Thread Trimming Operations)
Lockstitch, chainstitch and overlock machines with different functional sequences can be operated using this control.
The functional sequences can be selected by means of parameter 290.
ATTENTION
If the motor is mounted differently, e. g. at a different angle or with gear, make sure
that the value set by means of parameter 161 corresponds to the direction of rotation.
ATTENTION
Before switching functional sequences, detach cables from the inputs and outputs! Please
ensure that the machine installed provides the functional sequence to be set!
Settings with parameter 290 only after power On!
