Yaskawa Metasys N2 - Manual (Page 11)

No. Name Setting Range Default
Z3–05 Serial Communications Fault Select 0 to 4 1
Setting 0: Ignore
Setting 1: Alarm
Setting 2: Fault with EF0.
Fault FB14 will display in the operator and an EF0 fault will be sent to the drive.
Setting 3: Fault with EF0 and Open Bypass Contactor K3.
Fault FB14 will display in the operator, an EF0 fault will be sent to the drive, and bypass contactor K3 will be opened.
Setting 4: Alarm and run at preset speed set in Z3-10.
Alarm AL14 will display in the 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 Detection Time 0.0 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
Command message Response message Command message
Controller→Bypass →Bypass →
Time
24-bit length Z3-07 setting
Bypass Controller Controller
Figure 4 Serial Communications Receive to Transmit Wait Time Setting
n Z3-10: Cable Loss Pre-set Speed
When a serial communicaions fault is detected and Z3-05=4, the value here will become the frequency reference.
No. Name Setting Range Default
Z3-10 Cable Loss Pre-set Speed 0.0 to 60.0 Hz 0.0 Hz
n Z3-11: Serial Communication Fault Detection Selection
Enables or disables the serial communications fault detection.
No. Name Setting Range Default
Z3-11 Serial Communication Fault Detection Selection 0 or 1 1
Setting 0: Disabled
No communication error detection. Ignore setting in Z3-05.
Setting 1: Enabled
If the bypass does not receive data from the master for longer than the time set to Z3-06, then a FB14 Serial Communicaions
fault will be triggered and the bypass will operate as determined by parameter Z3-05.
4 N2 Setup Parameters
YASKAWA TOEP YAICOM 12A Z1000 Bypass Network Protocol Metasys ® N2 Technical Manual 11