Protective Function Detail of Error Code

[When in Trouble]

Warning Function

•In MINAS-A4P Series, a warning is given before a protection function works and you can check the ma- chine status such as overload in advance.

When a warning has been given, a warning code below blinks slowly on the 7-segment LED at the front panel.

Warning	Warning name	Description
code number	Warning name	Description
code number
16	Overload warning	The load has been 85% or more of the overload protection level.
18	Over-regeneration	The load has been 85% or more of the over-regenerative load protection level.
	load warning
40	Battery warning	Voltage of a battery for absolute encoder has been approximately 3.2 V or less.
88	Fan lock warning	A fan has stopped for 1s or more.
89	External scale alarm	An external scale temperature has been 65ﬂC or more or signal intensity is insufficient
89	External scale alarm	(mounting must be adjusted). This is enabled only for the full-closed control.

•When an overload warning or over-regeneration load warning has been given, referring to the counter- measures taken by relevant protection function.

•When a battery warning has been given, replace the battery for absolute encoder with a new one. When the battery has been replaced, perform Alarm Clear to the servo driver once to clear the battery alarm.

Protective Function (Detail of Error Code)

Protective	Error	Causes		Measures
function	code No.	Causes		Measures
function	code No.
Control	11	Voltage between P and N of the converter portion of the		Measure the voltage between lines of connector (L1C
power		control power supply has fallen below the specified value.	and L2C) and terminal block (r and t).
supply		1)Power supply voltage is low. Instantaneous power		1)Increase the power capacity. Change the power
under-		failure has occurred		supply.
under-		2)Lack of power capacity...Power supply voltage has		2)Increase the power capacity.
voltage		2)Lack of power capacity...Power supply voltage has		2)Increase the power capacity.
voltage		fallen down due to inrush current at the main power-on.
protection		fallen down due to inrush current at the main power-on.
protection		3)Failure of servo driver (failure of the circuit)		3)Replace the driver with a new one.
		3)Failure of servo driver (failure of the circuit)		3)Replace the driver with a new one.

Over-	12	Voltage between P and N of the converter portion of the		Measure the voltage between lines of connector (L1,
voltage		control power supply has exceeded the specified value		L2 and L3).
protection		1)Power supply voltage has exceeded the permissible		1)Enter correct voltage. Remove a phase-advancing	When
		input voltage. Voltage surge due to the phase-		capacitor.
		advancing capacitor or UPS (Uninterruptible Power
		Supply) have occurred.			in
		2)Disconnection of the regeneration discharge resistor	2)Measure the resistance of the external resistor		Trouble
				connected between terminal P and B of the driver.	Trouble
				connected between terminal P and B of the driver.
				Replace the external resistor if the value is ∞.
		3)External regeneration discharge resistor is not appro-		3)Change to the one with specified resistance and
		priate and could not absorb the regeneration energy.		wattage.
		4)Failure of servo driver (failure of the circuit)		4)Replace the driver with a new one.

Main power	13	Instantaneous power failure has occurred between L1 and		Measure the voltage between lines of connector (L1,
supply		L3 for longer period than the preset time with SV.Pr6D		L2 and L3).
under-		(Main power-off detection time) while SV.Pr65
voltage		(Undervoltage error response at main power-off) is set to
voltage		1. Or the voltage between P and N of the converter
protection		1. Or the voltage between P and N of the converter
protection		portion of the main power supply has fallen below the
		portion of the main power supply has fallen below the
		specified value during Servo-ON.
		1)Power supply voltage is low. Instantaneous power		1)Increase the power capacity. Change the power supply.
		failure has occurred		Remove the causes of the shutdown of the magnetic
				contactor or the main power supply, then re-enter the power.
		2)Instantaneous power failure has occurred.		2)Set up the longer time to SV.Pr6D (Main power off
				detecting time). Set up each phase of the power correctly.
		3)Lack of power capacity...Power supply voltage has		3)Increase the power capacity. For the capacity, refer
		fallen down due to inrush current at the main power-		to P.32, "Driver and List of Applicable Peripheral
		on.		Equipments" of Preparation.
		4)Phase lack...3-phase input driver has been operated		4)Connect each phase of the power supply (L1, L2 and
		with single phase input.		L3) correctly. For single phase, 100V and 200V
				driver, use L1 and L3.
		5)Failure of servo driver (failure of the circuit)		5)Replace the driver with a new one.

165

Panasonic A4P Series instruction manual Protective Function Detail of Error Code

Models: A4P Series

[When in Trouble]

Description

Protective Function (Detail of Error Code)

function

Control

under-

voltage

Over-

voltage

When

Main power

voltage