Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 387)

n Z3-05: Serial Communications Fault Select
Selects the action to take when a serial communications fault is detected. A serial communications fault is detected when after
last communicating, no communications occurs within the time set to Z3-06.
No. Name Setting Range Default
Z3-05 Serial Communications Fault Select 0 to 4 1
Setting 0: Ignore
Setting 1: Alarm Only
Setting 2: Fault with EF0
An EF0 fault will be sent to the drive.
Setting 3: Fault with EF0 and Open Contactors
An EF0 fault will be sent to the drive and the bypass contactor (K3) will be opened.
Setting 4: Alarm and run at preset speed set in Z3-10
Display AL14 alarm on operator.
n Z3-06: Serial Communications Fault Time Select
Sets the time allowed to elapse since receiving serial communications before triggering a communications fault.
A value of 0.0 means to never time out.
No. Name Setting Range Default
Z3-06 Serial Communications Fault Time Select 0.0 s to 99.9 s 2.0 s
n Z3-07: Serial Communications Receive to Transmit Wait Time
Sets the time to delay a serial communications response to a serial communications command.
No. Name Setting Range Default
Z3-07 Serial Communications Receive to Transmit Wait Time 0 to 99 ms 5 ms
D.4 MEMOBUS/Modbus Setup Parameters
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual 387
D
MEMOBUS/Modbus Communications