ABB ACS850 series, Manual

Page: 242 / 370

242 Parameters
None EFB communication loss monitoring is disabled. 0
Any message EFB communication loss monitoring is enabled. Any Modbus
request resets the timeout counter. 1
Ctrl write EFB communication loss monitoring is enabled. Writing to
control or reference word resets the timeout counter. 2
58.09 Comm loss action Defines the drive operation after the EFB communication loss
monitoring awakes. See parameters
58.07 Comm loss t out
and 58.08 Comm loss mode .
None No action. 0
Fault Drive trips on a fault (EFB COMM LOSS). 1
Safe speed Drive generates an alarm (EFB COMM LOSS) and takes the
safe speed into use (see parameter
30.02 Speed ref safe ).
2
Last speed Drive generates an alarm (EFB COMM LOSS) and takes the
last speed into use (average over the previous 10 seconds). 3
58.10 Refresh settings Refreshes the settings of parameters 58.01 … 58.09 .
Done Initial value. The value is restored after the refresh is done. 0
Refresh Refresh. 1
58.11 Reference scale Defines the factor which the DCU 16-bit communication
profile uses when scaling fieldbus references to drive
references and drive actual values to fieldbus actual signals.
The references are multiplied by this scaling factor. See
section
DCU 16-bit profile on page 331 .
1…65535 Scaling factor. 1 = 1
58.15 Comm diagnostics 16-bit packed boolean data word for the communication
diagnostics flag bits. Read only.
0x0000…0xFFFF Data word (hex). 1 = 1
No. Name/Value Description FbEq
Bit Information
0 Reserved.
1
NotThisNodeData (Last received packet was not for this node.)
2 Reserved.
3 One ok packet (At least one packet has been successfully received after the power up.)
4 Reserved.
5 Comm timeout (Communication time-out has occured.)
6 Not used.
7 Not used.
8 Last write was not successful because of a parameter value limit violation.
9 Last read was not successful because only one register was used to read a 32-bit value.
10 Last write was not successful because the parameter was read only.
11 Last parameter access was not successful because the parameter or group did not exist.
12 Not used.
13 Not used.
14 Not used.
15 Last write was not successful because only one register was used to read a 32-bit value.
16…31 Not used.