Siemens 400 V / 210...590 A operating instructions Alarms

Faults and Alarms 01.2004

14.2Alarms

			An alarm message is periodically displayed on the PMU by A=alarm
			and a 3-digit number. An alarm cannot be acknowledged. It is
			automatically deleted once the cause has been removed. Several
			alarms can be active simultaneously, in which case they are displayed
			one after another.
			If the AFE inverter is operated with the OP1S control panel, the warning
			is displayed in the bottom line of the operation display. The red LED
			also flashes (refer to the OP1S Operating Instructions).
			Alarm messages
Alarm		Param-	Description		Remedial measures
No.		No.
		Bit No.
A001		P953	Comp. time	Check r725 Available computation time.
			CU board comp. time utilization too high	Increase P308 Sampling time
	0
A015		P953	Ext. alarm 1	External alarm is active. Check whether the lead to
			Parameterizable, external alarm input 1	the appropriate digital input is interrupted.
	14
			has been activated	Check parameter P588 Src No Ext Warn1
				See section "Digital inputs" in Operator's Guide
A016		P953	Ext. alarm 2	External alarm is active. Check whether the lead to
			Parameterizable, external alarm input 2	the appropriate digital input is interrupted.
	15
			has been activated	Check parameter P589 Src No Ext Warn2.
				See section "Digital inputs" in Operator's Guide
A020		P954	Overcurrent	Check the driven load for an overload condition.
			An overcurrent has been detected.	•	Are the dynamic requirements too high?
	3
A021		P954	Overvoltage	Check the line voltage.
			A DC-link overvoltage condition has been detected.	•	Are the dynamic requirements too high?
	4
A022		P954	Inv.temp.	Check r011 AFE temperature.
			The alarm activation threshold has been exceeded.	Measure inlet or ambient air temperature. Apply
	5
				reduction curves when theta >40 ºC.
				See section "Technical Data" in Operator's Guide
				Check
				•	whether fan -E1 is connected and/or rotating in
					the correct direction.
				•	the air inlet and outlet openings for dirt/blockage.
				•	the temperature sensor connected to -X30
A025		P954	I2t- inv.	Check whether the rated output current or peak
			The inverter will be thermally overloaded if it	current (operating class II) is (was) too high.
	8
			continues to operate under the current load	Check r010 AFE Utilization
			conditions.

14-6	6SE7087-6CX86-2BA1 Siemens AG
	Operating Instructions SIMOVERT MASTERDRIVES AFE