Danfoss VLT 3006 Product Manual page 114

Parameter description
500
Address
(Address)
501
Baud rate
(Baud rate)
502
Data read-out
(Data readout)
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Value:
01- 99
Value:
300, 600, 1200, 2400, 4800,
0 Reference (reference %) - - - - -%
1 Frequency (frequency Hz)
2 Display / Feedback
(feedback unit)
3 Current (current A)
4 Torque (torque %)
5 Power (power kW)
6 Power (power HP)
7 Energy (energy kWh)
8 Output voltage
(output volt. V)
9 DC voltage (DC bus V)
10 Motor term (ETR (MOT) %) - - - - -%
11 VLT term. % (ETR (VLT) %) - - - -%
®
12 Digital input
(DIG. INP.CODE) binary code
13 Analogue input 1
(analog in 53) in terminal 53
14 Analogue input 2
(analog in 60) in terminal 60
15 Warning parameter
(warning code)
16 Control word (control word)
17 Status word (status word)
18 Alarm parameter
(alarm code)
= Factory setting. Text in ( ) = Display text.
The figures in [ ] are used in bus communication.
®
MG.30.A7.02 - VLT is a registered Danfoss trademark
Specify an address of each unit. If the
master (PLC or PC) addresses 00, the
01
message is written to all connected VLT
frequency converters simultaneously
(broadcast). The unit will in this case not
give a reply to the master. If the number of
units is over 31, a repeater must be used.
Parameter 500 can not be changed via the
serial bus, RS 485.
This parameter sets the speed at which data
is transferred.
9600
It is defined as the number of bits trans-
ferred per second. The VLT
converter's transmission speed must be set
equivalent to the PC/PLC's transmission
speed. Parameter 501 cannot be selected
via the serial bus, RS485.
The data transmission time itself, deter-
mined by the baud rate setting, is only part
of the total communication time. The total
time to send a telegram to the VLT
quency converter and receive an answer is
between 320 ms and 480 ms.
Function:
This parameter can only be read and is
- - - - -Hz
used to read off displays, status reports,
warnings and alarms via the serial bus,
- - - - -"unit"
RS485. The individual data values are read
- - - - -A
using index reading (byte 4 = 1), and the
- - - - -%
index number of the required data value is
- - - - -kW
stated in bytes 14-19 as shown below. The
- - - - -HP
possible range is 000.00-018.00. Example
- - - - -kWh
of reading of index number 12: 012.00.
- - - - -V
- - - - -V
Index
Byte
Also see description of parameter group 5.
The data values cannot be read in the
display for para. 502.
Description of choices:
binary code
Index 0-11:
12 process data, which can also be read
off in "display mode" (see p. 59). The
stated unit is not read, but only the value.
binary code
Index 0 (reference) is only external refer-
ences, i.e. pulse input (terminal 17),
analogue inputs (terminals 53 and 60) and
bus reference (parameter 516).
5.. Serial communication
® frequency
®
fre-
0 1 2 0 0
14 15 16 17 18
®
2
19
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