NORD Drivesystems BU0020 - Manual (Page 80)

PROFIBUS DP – Supplementary manual options for NORD - Frequency Inverters
80 BU 0020 GB-2612
7.3.7 Actual value 1 (IW1)
The actual value 1, i.e. the actual output frequency of the inverter, is transferred as a 16 Bit value as
standard in the actual value 1. The actual value 1 is transferred to the master in the inverter response
telegram as the second word in the process data area.
PZD1 PZD2 PZD3 PZD4
ZSW IW1 IW2/3 IW2/3
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
The actual value 1 is transferred as a whole number in the range -32768 to 32767. In addition to the
actual frequency, other actual inverter values can be transferred. The setting is made in P543 'Actual
value 1 function'.
The settings „Actual frequency‟, „Actual speed‟, „Current‟ and „Torque current‟ are transferred as
percentages of the respective nominal sizes. The value 16384 (4000 HEX) corresponds to 100%. The
value C000 HEX corresponds to -100%. Actual values in the range
–200% to +200% can be
transferred.
With the setting „Digital I/O status‟, the states of the control terminals and the relay (MFR) /digital
outputs can be transferred:
SK 300E/700E/750E
Bit Status
Bits 0-5 Digital input 1-6
Bit 6-11 for POSICON special extension unit Digital input 7-12
Bit 6 for encoder special extension unit Digital input 7
Bits 12-15 Multifunctional relay 1-4
SK 5xxE
Bit Status
Bits 0-4 Digital input 1-5
Bit 5-6 (above SK 520E) Digital input 6-7
Bits 12-15 Relay and digital outputs 1 - 4
With the settings „Actual position‟ and „Setpoint position‟, the actual absolute position is transferred.
The resolution is 1 = 0.001 revolutions.
If with SK 700/750E the value 'Setpoint position 32Bit' is set in parameter P546 'Setpoint 1 function',
the actual value of the setpoint position or actual position is also transferred as a 32Bit value in PZD2
and PZD3:
PZD1 PZD2 PZD3 PZD4
ZSW IW1 IW2
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