Hitachi X200-002SFE/NFU Instruction Manuals page 190

Network Detection Signal (FieldBus Option)
The Network Detection Signal output indicates the general status of network
communications when using a FieldBus option. The inverter has a programmable
watchdog timer to monitor network activity. Parameter P044 sets the time-out period. If
communications stop or pause longer than the specified time-out period, the ODc output
turns ON.
Option
Code
10
Valid for inputs:
Required settings
Notes:
• To disable the communications watchdog timer,
set P044=00.00 sec.
More user manuals on
Terminal
Function Name
Symbol
ODc Network
Disconnection
Signal
(Option module)
11, AL0 – AL2
P044, P045
ManualsBase.com
State Description
ON when the communication watchdog timer (period
specified by P044) has timed out.
OFF when the communication watchdog timer is
satisfied by regular communications activity
Example for terminal [11] (default output
configuration shown – see
Inverter output
terminal circuit
CM2
Example for terminal [AL0], [AL1], [AL2] (requires
output configuration – see
Inverter logic
circuit board
AL0
Power
supply
See I/O specs on page 4-6
4−51
page 3-54):
ODc
11
RY
page 4-35 and 3-54):
ODc
AL1 AL2
Load