31
★
= ROM default setting. Text in ( ) = display text. Figures in [ ] are used when communicating with the bus.
VLT
®
Series 2000
Programming
Group 5 -- Serial Data Interface
500 Address (ADDRESS)
Value:
01 to 99
(echo)
101 to 199
★
01
Function:
Using this parameter you set the bus address for each VLT
via the control panel. Howeve,r the first telegram after the
voltage connection can change the bus address. This
means that address change from the bus is no longer
possible. The echo function enables connection of several
VLT 2000 adjustable frequency drives to the same PC.
Description:
Specify an address of each unit connected. If the PC/PLC
addresses 00, all drives connscted will be written to at the
same time. The units in this case not give a reply to the
master.
address change via bus enables address change on units
without display.
The echo function is active on address 101-199, shown as
01-99 ECHO. The ring is built up by connecting Tx on the
first VLT to Rx on the next VLT.
The last unit's Tx is connected to Rx on the PC. Terminal 20
(frame) must be connected throughout, but with the PC
connected at only one end.
501 Bits/Sec. Baud Rate (BAUD RATE)
Value:
300, 600, 1200
★
1200
Function:
Using this parameter you can set the speed at which a
character is transmitted via the RS 232 port. It is defined as
the number of bits transmitted per second.
Description:
The transmission rate of the VLT must be set in accordance
with the transmission rate of the PLC/PC applied. The
transmission rate can only be altered via the control panel.
502 Data Readout (DATA READO)
Value:
★
[0] Reference (REFERENCE %)
%
[1] Frequency (FREQUENCY Hz)
Hz
[2] Display/Feedback (FDBK UNIT)
“unit”
[3] Current (CURRENT A)
A
[4] Torque (TORQUE %)
%
[5] Power (POWER kW)
kW
[8] Motor voltage (OUTPUT VOLT.V)
V
[9] DC voltage (DC BUS V)
V
[10] Motor thermal load (ETR (MOT) %)
%
[11] Thermal inverter load (ETR (VLT) %)
%
[12] Digital input (DIG IN CODE)
binary code
[13] Analog input 1 (ANALOG IN 53)
in terminal 53
[14] Analog input 2 (ANALOG IN 60)
in terminal 60
[15] Warning parameter (WARN CODE)
binary code
[16] Control word (CONTROL WORD)
[17] Status word (STATUS WORD)
[18] Alarm parameter (ALARM CODE)
binary code
[19] Software version no.
4 digits
Description:
NOTE: Menu 502 can only be selected from the bus.
These values are read-only values.
The PC/PLC may prompt for a value from an index
between 0 and 19.
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