250 Parameters
Speed ref safe Drive generates an A7CE EFB comm loss warning and sets
the speed to the speed defined by parameter 22.41 Speed ref
safe (or 28.41 Frequency ref safe when frequency reference
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.
3
Fault always Drive continuously monitors for communication loss. Drive
trips on 6681 EFB comm loss. This happens even though the
drive is in a control location where the EFB start/stop or
reference is not used.
4
Warning Drive generates an A7CE EFB comm loss warning. This
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.
5
58.15 Communication
loss mode
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 58.06
Communication control (Refresh settings).
See also parameters 58.14 Communication loss action and
58.16 Communication loss time.
Cw / Ref1 /
Ref2
Any message Any message addressed to the drive resets the timeout. 1
Cw / Ref1 / Ref2 A write of the control word or a reference resets the timeout. 2
58.16 Communication
loss time
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 is taken.
Changes to this parameter take effect after the control unit is
rebooted or the new settings validated by parameter 58.06
Communication control (Refresh settings).
See also parameter 58.15 Communication loss mode.
30.0 s
0.0…6000.0 s EFB communication timeout. 1 = 1
58.17 Transmit delay 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 58.06
Communication control (Refresh settings).
0 ms
0…65535 ms Minimum response delay. 1 = 1
58.18 EFB control word Displays the raw (unmodified) control word sent by the
Modbus controller to the drive. For debugging purposes.
This parameter is read-only.
-
00000000h…
FFFFFFFFh
Control word sent by Modbus controller to the drive. 1 = 1
58.19 EFB status word Displays the raw (unmodified) status word for debugging
purposes.
This parameter is read-only.
-
00000000h…
FFFFFFFFh
Status word sent by the drive to the Modbus controller. 1 = 1
No. Name/Value Description Def/FbEq16
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