NORD Drivesystems BU0070 User Manual
Page 25
6 Data transmission
BU 0070 GB
Subject to technical alterations
25
6.1.3 The setpoint 1 (SW1)
The function of the 1
st
setpoint is set in parameter P546. The following options are available:
Setpoint frequency (16 Bit)
The setpoint frequency in setpoint 1 is transferred as a 16 Bit value as standard. Setpoint 1 is transferred to the
inverter as the second word in the process data area in the order telegram.
PZD1 PZD2 PZD3 PZD3
STW
SW1
SW3
SW2
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
The setpoint is transferred as a whole number with a value range of -32768 to 32767 (8000 hex to 7FFF hex). The
value 16384 (4000 hex) is equal to 100%. The value C000 HEX is equal to -100%. A setpoint of 100% corresponds
to the parameter maximum frequency (parameter P105) set in the same parameter set.
Setpoint position (16 or 32 Bit)
Using the posicon special upgrade for the SK 700E, the absolute setpoint position can be transferred in setpoint 1.
It can be transferred as a 16 or 32 Bit value with a resolution of 1=0.001 revolutions. In addition, the control
terminals (PosiCon control bits setting) can be transferred in binary.
16-Bit setpoint position setting:
A value range of +32767 (= 32.767 revolutions) to -32768 (= -32.768 revolutions) is possible as a 16 Bit value. The
16 Bit setpoint position is transferred as a second word in the area of the process data (like the setpoint frequency,
see above)
32-Bit setpoint position setting:
The full position range of +/- 50000,000 revolutions is available as a 32 Bit value. The 32 Bit setpoint position is
transferred as the second and third word in the process data area:
PZD1 PZD2 PZD3 PZD3
STW
SW1
SW2
Posicon control bits setting:
A 16 Bit value is transferred in which the control terminals of the posicon special extension unit are mapped. The
setpoint position is based on the position array / position increment as per the P610 setpoint mode.
The transferred bits have the following significance (see operating instructions BU 0710):
Bit 0 -5 Bit0-Bit5 positional array / positional increm.
Bit 6
Reference point run
Bit 7
Reference Point
Bit 8
Teach-in
Bit 9
Quit teach-in
Bit 10
Reset position