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NORD Drivesystems BU0090 User Manual

Page 48

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NORDAC AS-Interface Manual

48

BU

0090

GB

Deviations in the status word (ZSW) for SK 300E and SK 700/750E series devices
With the above device types, the meanings of the two bits 10 and 13 in the status word deviate from the status
word of the SK 500 E.

Meaning of the two individual bits:

Bit

Value

Meaning

Comments

10 0

MFR 1 reference value
undershot

Programmed function of the MFR 1 met or actual value < programmed
reference value

1 MFR 1 reference value

reached

Programmed function of the MFR 1 is fulfilled, or
Actual value > programmed reference value

13 0

MFR 4 reference value
undershot

Only for SK 700E/750E with posicon upgrade: Status MFR 4 = 0

1 MFR 4 reference value

reached

Only for SK 700E/750E with posicon upgrade: Status MFR 4 = 1

5.4.2

The 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 PZD3

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 values. 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) can be transferred:

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


With the setting 'Actual position' and 'Setpoint position' the actual absolute position is transferred. The
resolution is 1 = 0.001 revolutions. If the value 'Setpoint position 32 Bit' is set in parameter P546 (Function
setpoint 1

), then the actual value (Setpoint or actual position) is also transferred to IW2 and IW3 as a 32 Bit

value.

PZD1 PZD2 PZD3 PZD3

ZSW

IW1

IW2