YASKAWA iQpump1000 - Page 456

The drive faults on CE and coasts to stop when H5-15 > 0 and the CE condition persists for the time set in H5-15.
Note the following conditions when using this setting and a CE occurs:
• During Pre-charge, the drive will continue to run at the Pre-charge frequency
• During Sleep, the drive will wake up and run at the speed set in H5-14
• During Feedback Drop, the drive will wake up an run at the speed set in H5-14
• Lag pumps are deactivated when in Contactor Multiplex.
n
H5-05: Communication Fault Detection Selection
Enables or disables the CE detection for communications.
No. Name Setting Range Default
H5-05 Communication Fault Detection Selection 0 or 1 1
Setting 0: Disabled
No communication error detection. The drive continues operation.
Setting 1: Enabled
If the drive does not receive data from the master for longer than the time set to H5-09, then a CE fault will be triggered and
the drive will operate as determined by parameter H5-04.
n
H5-06: Drive Transmit Wait Time
Sets the time the drive waits after receiving data from a master until responding data.
Note: Cycle power for the setting to take effect.
No. Name Setting Range Default
H5-06 Drive Transmit Wait Time 5 to 65 ms 5 ms
Command message Response message Command message
PLC→Drive PLC→DriveDrive→PLC
Time
24 bit length
H5-06 setting
Figure C.5 Drive Transmit Wait Time Setting
n
H5-07: RTS Control Selection
Enables or disables RTS control.
Note: Cycle power for the setting to take effect.
No. Name Setting Range Default
H5-07 RTS Control Selection 0 or 1 1
Setting 0: Disabled. RTS is always on.
Use this setting with point-to-point RS-422 communications.
Setting 1: Enabled. RTS switches while sending.
Use this setting with RS-485 communications or when using multi-drop RS-422 communications.
n
H5-09: Communications Fault Detection Time
Sets the time the communications must be lost before the drive triggers a CE fault.
No. Name Setting Range Default
H5-09 Communications Fault Detection Time 0.0 to 10.0 s 2.0 s
C.4 MEMOBUS/Modbus Setup Parameters
456
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual