Instruction manual

Instruction Manual
- 16 -
Connection of a sensor as apposition transmitter (normally closed contact function), e. g. light barrier or proximity
switch to socket B18/7
The following settings must be made using parameter 270:
270 = 0
- The positions are generated using the transmitter incorporated in the motor and can be set
using parameter 171.
270 = 1
- Setting the sensor to position 2.
- Position 1 is set according to the angular degree setting by means of parameter 171.
- Start measuring from trailing edge position 2.
- 0V at input B18/7 (inside of the window)
- +5V at input B18/7 (outside of the window)
270 = 2
- Setting the sensor to position 2.
- Position 1 is set according to the angular degree setting by means of parameter 171.
- Start measuring from leading edge position 2.
- Input and output level as with setting "1"
270 = 3
- Setting the sensor to position 1.
- Position 2 is set according to the angular degree setting by means of parameter 171.
- Start measuring from trailing edge position 1.
- Input and output level as with setting "1"
270 = 4
- Setting the sensor to position 1.
- Position 2 is set according to the angular degree setting by means of parameter 171.
- Start measuring from leading edge position 1.
- Input and output level as with setting "1"
270 = 5
- No position sensor available. The drive stops unpositioned. The thread trimmer function is
suppressed with this setting.
270 = 6
- The positions are determined by preset values. The reference position must be correctly set
for this purpose. In machines with position sensors incorporated in the handwheel the
reference position is determined by mechanical adjustment. In all other cases the reference
position must be set (see chapter “Setting the Reference Position”) in order for the angles
preset by machine select for positions 1 and 2 to be correct. If necessary, the preset values
can be adapted as described in chapters “Setting the Positions”.
P2A
P1A
= 0V
OUT
OUT
OUT
OUT
ST2
IN
POS1
POS2
ST2/21
POS1
ST2/20
POS2
ST2/21
ST2/20
POS2
ST2/21
POS1
ST2/20
ST2/20
POS1
P1E
P1E
P2E
POS
B18/7
POS2
ST2/21
SEN
P2E
= high
0267/SEN-2-DA
P1A
P2A
Pa 171
P1E
P2E
Pa 171
Pa 171
P1A
Pa 171
P2E
P1E
360°
P2A
270 = 1
P2A
P1A
270 = 3270 = 4 270 = 2
+5V
0V
OUT (position window) = npn transistor (emitter to 0V) is conductive. The width of position window cannot be adjusted.
5.8.1 Setting the Reference Position (Parameter 270 = 0 or 6)
The angular positions necessary on the machine e.g. “needle down position“ or “thread lever up position“ are
stored in the control. A reference position is needed in order to establish a relationship between position
transmitter information and actual mechanical position. The reference position can difference according to the
setting of the parameter, generally "Insertion point of the needle into the needle plate (EP)" (see parameter
290).
The reference position must be set:
 for initial operation
 after replacing the motor
 after replacing the microprocessor