Siemens 400 V / 210...590 A Forming, How the serial, Example A-J60147512345, Number is made up

01.2004 Forming

16 Forming

For units in the 400 V and 690 V voltage classes (cf. 9th digit of the MLFB, letter E or H), the DC link capacitors must be formed again after an idle period of more than 2 years.

For units in the 500 V voltage class (cf. 9th digit of the MLFB, letter F), the DC link capacitors must be formed again after an idle period of more than 1 year.

If this is not carried out, the unit can be damaged when the line voltage is powered up.

If the unit was started-up within one year after having been manufactured, the DC link capacitors do not have to be re-formed. The date of manufacture of the unit can be read from the serial number.

How the serial	(Example: A-J60147512345)
number is made up
		Digit	Example	Meaning
		1 and 2	A-	Place of manufacture
	3		M	2000
			N	2001
			P	2002
			R	2003
			S	2004
			T	2005
	4		1 to 9	January to September
			O	October
			N	November
			D	December
		5 to 14		Not relevant for forming

6 Forming time in hours

5

4

3

2

1

			V
		0					V
0
5						0
					9
				6
			/
			V
	0
0
4							Off-circuit idle

time in years

1 2 3 4 5

Fig. 16-1 Forming time depending on the idle time of the AFE inverter

Siemens AG 6SE7087-6CX86-2BA1	16-1
SIMOVERT MASTERDRIVES AFE Operating Instructions