Mitsubishi FR - S500 instruction manual PU disconnection detection/PU setting lock

2.15.5 PU disconnection detection/PU setting lock

	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 1 second 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 operation			: Operation performed to perform running,
						frequency setting or parameter setting from the
						parameter unit (FR-PU04).
	Parameter			Name		Factory	Setting	Remarks
						Setting	Range
	n17 (993)		PU disconnection			0	0, 1, 10	Setting is enabled when
			detection/PU setting lock					Pr. 30 = "1"
<Setting>
	n17 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				PU operation invalid*
				disconnected (without PU disconnection detection)

* The monitor display and RESETSTOP key are valid.

REMARKS

When RS-485 communication operation is performed through the RS-485

connector, the reset selection/PU stop selection function is valid but the PU 2 disconnection detection function 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.

135