Yaskawa P7 Metasys N2 - Manual (Page 23)

Network Connection 3-5
Stop
Communication Fault Enable (BO 11) must be set to ‘On’. In this mode, Cable Loss Timeout (AO 21) is set to the desired interval
and parameter H5-04 is set to a value of 0,1 or 2. If the time between messages exceeds the timeout interval, the drive’s speed
command (AO 1) is set to 0. The stopping method is determined by the setting of H5-04. An EF0 drive fault will be set.
H5-04 = 0 selects Ramp to Stop. The deceleration time or the slope of the ramp is determined by the setting of drive
parameter C1-02.
H5-04 = 1 selects Coast to Stop. The drive does not attempt to control the rate of deceleration.
H5-04 = 2 selects Emergency or Fast Stop. The deceleration time is determined by the setting of drive parameter C1-09.
CAUTION
The behavior of the drive at cable loss is controlled by parameter H5-04. This drive parameter works
with the points as described in the table above to determine how the drive will respond to a cable
loss. If the cable loss fault is disabled, the drive will continue in its last state, if running the drive
will continue to run at the last commanded frequency.
Fault (EF0)
In this mode, Cable Loss Timeout (AO 21) is set to the desired interval and Communication Fault Enable (BO 11) is set to ‘On’. If
the time between messages exceeds the timeout interval, an ‘EF0’ fault is declared and the drive stops. The stopping method is
controlled by the setting of H5-04 and is described above. Cable Loss Speed (AO 22) is ignored.