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Parameter Unit (FR-PU04) Setting
3
INVERTER FUNCTIONS
3.8.5 PU disconnection detection/PU setting lock (Pr. 993)
<Setting>
*The monitor display, frequency setting, parameter setting and key are valid.
You can choose the connector disconnection detection function of the parameter
unit (FR-PU04) and the operation write of the parameter unit (FR-PU04).
! PU disconnection detection
: This function detects that the parameter unit (FR-PU04) has
been disconnected from the inverter for longer than 1s and
causes the inverter to provide an alarm output (PUE) and
come to an alarm stop. When the PU has been disconnected
since before power-on, it is not judged as an alarm.
! PU setting lock: This function disables (enables) operation, frequency setting
or parameter setting from the parameter unit (FR-PU04).
Parameter Name Factory Setting
Setting
Range
993
PU disconnection
detection/PU setting lock
0 0, 1, 10
Pr. 993
Setting
PU Disconnection Detection PU Setting Lock
0
Operation is continued as-is if the PU is disconnected
(without PU disconnection detection)
PU operation
valid
1
Inverter output is shut off when the PU is disconnected
(with PU disconnection detection)
10
Operation is continued as-is if the PU is disconnected
(without PU disconnection detection)
PU operation
invalid*
REMARKS
When RS-485 communication operation is performed through the PU connector or when GX
Developer is used, the reset selection/PU stop selection function (Pr. 75) is valid but the PU
disconnection detection function (Pr. 993) is invalid.
CAUTION
Do not reset the inverter while the start signal is being input.
Doing so will cause the inverter to start immediately after a reset, leading to
hazardous conditions.
STOP
RESET