Honeywell NXL Control Keypad 6596, Fault codes, Fault Possible cause Correcting measures Code

7

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        Control Keypad 65(96)

7.4.5Fault codes

The fault codes, their causes and correcting actions are presented in the table below. The shadowed faults are A faults only. The items written in white on black background present faults for which you can program different responses in the application. See parameter group Protections.

Note! When you contact the factory or the distributor due to a fault, it is advisable to write down all fault texts and codes that appear on the keypad

Fault	Fault		Possible cause	Correcting measures
code
1	Overcurrent	Frequency converter has detected too high a		Check loading.
		current (>4*In) in the motor cable:		Check motor size.
		− sudden heavy load increase		Check cables.
		− short circuit in motor cables
		−	unsuitable motor
2	Overvoltage	The DC-link voltage has exceeded the limits		Make the deceleration time longer.
		defined in Table 4-3.
		− too short a deceleration time
		− high overvoltage spikes in supply
3	Earth fault	Current measurement has detected that the		Check motor cables and motor.
		sum of motor phase current is not zero.
		− insulation failure in cables or motor
8	System fault		component failure	Reset the fault and restart.
				Should the fault re-occur, contact
			faulty operation
		-		the distributor near to you.
9	Undervoltage	DC-link voltage is under the voltage limits		In case of temporary supply voltage
		defined in Table 4-3.		break reset the fault and restart the
		− most probable cause: too low a supply		frequency converter. Check the
			voltage	supply voltage. If it is adequate, an
		−	frequency converter internal fault	internal failure has occurred.
				Contact the distributor near to you.
11	Output phase	Current measurement has detected that there		Check motor cable and motor.
	supervision	is no current in one motor phase.
13	Frequency	Heatsink temperature is under –10°C
	converter under
	temperature
14	Frequency	Heatsink temperature is over 90°C.		Check the correct amount and flow
	converter			of cooling air.
	overtemperature	Overtemperature warning is issued when the		Check the heatsink for dust.
			°	Check the ambient temperature
		heatsink temperature exceeds 85 C.		(p2.6.8).
				Make sure that the switching
				frequency is not too high in relation
				to ambient temperature and motor
				load.
15	Motor stalled	Motor stall protection has tripped.		Check motor.
				Check that Pump or Fan is not
				jammed
16	Motor	Motor overheating has been detected by		Decrease the motor load.
	overtemperature	frequency converter motor temperature		If no motor overload exists, check
		model. Motor is overloaded.		the temperature model parameters.