ABB ACQ580 Firmware Manual page 254

250 Parameters
No. Name/Value
Speed ref safe
Fault always
Warning
58.15 Communication
loss mode
Any message
Cw / Ref1 / Ref2
58.16 Communication
loss time
0.0...6000.0 s
58.17 Transmit delay
0...65535 ms
58.18 EFB control word
00000000h...
FFFFFFFFh
58.19 EFB status word
00000000h...
FFFFFFFFh
Description
Drive generates an A7CE EFB comm loss
the speed to the speed defined by parameter
safe (or 28.41 Frequency ref safe
is being used). This occurs if control or reference is expected
from the EFB.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
Drive continuously monitors for communication loss. Drive
trips on 6681 EFB comm
drive is in a control location where the EFB start/stop or
reference is not used.
Drive generates an A7CE EFB comm loss
occurs even though no control is expected from the EFB.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
Defines which message types reset the timeout counter for
detecting an EFB communication loss.
Changes to this parameter take effect after the control unit is
rebooted or the new settings validated by parameter
Communication control (Refresh
See also parameters 58.14 Communication loss action
58.16 Communication loss
Any message addressed to the drive resets the timeout.
A write of the control word or a reference resets the timeout.
Sets a timeout for EFB communication. If a communication
break lasts longer than the timeout, the action specified by
parameter 58.14 Communication loss action
Changes to this parameter take effect after the control unit is
rebooted or the new settings validated by parameter
Communication control (Refresh
See also parameter 58.15 Communication loss
EFB communication timeout.
Defines a minimum response delay in addition to any fixed
delay imposed by the protocol.
Changes to this parameter take effect after the control unit is
rebooted or the new settings validated by parameter
Communication control (Refresh
Minimum response delay.
Displays the raw (unmodified) control word sent by the
Modbus controller to the drive. For debugging purposes.
This parameter is read-only.
Control word sent by Modbus controller to the drive.
Displays the raw (unmodified) status word for debugging
purposes.
This parameter is read-only.
Status word sent by the drive to the Modbus controller.
warning and sets
22.41 Speed ref
when frequency reference
loss. This happens even though the
warning. This
settings).
time.
is taken.
settings).
mode.
settings).
Def/FbEq16
3
4
5
Cw / Ref1 /
Ref2
58.06
and
1
2
30.0 s
58.06
1 = 1
0 ms
58.06
1 = 1
-
1 = 1
-
1 = 1