Forming Circuit; Forming Time As A Function Of Converter Idle Time - Siemens 6SE7011-5EP60 Operating Instructions Manual

Forming
Disconnect
U1/L1
V1/L2
W1/L3
Rectifier
PE1
Components for the

forming circuit

(suggestion)
DANGER
Procedure
11-2
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C / L+
Precharging
Fig. 11-1 Forming circuit
♦ 1 fuse-switch triple 400 V / 10 A
♦ 3 incandescent lamps 230 V / 100 W
♦ Various small parts e.g. lamp holders, 1.5 mm
The unit has hazardous voltage levels up to 5 minutes after it has been
powered down due to the DC link capacitors. The unit or the DC link
terminals must not be worked on until at least after this delay time.
♦ Before forming the unit, all the line and DC link connections must be
disconnected.
♦ The unit is not permitted to receive a switch-on command (e.g. via
the keyboard of the PMU or the terminal strip)
♦ The incandescent lamps must burn darker / extinguish during the
course of forming. If the lamps continue to burn, this indicates a fault
in the unit or in the wiring.
♦ Connect the required components in accordance with the circuit
example.
♦ Energize the forming circuit. The duration of forming depends on the
idle time of the converter.
Forming time
6
in hours
5
4
3
2
1
1 2 3
Fig. 11-2

Forming time as a function of converter idle time

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Motor
D / L-
connection
DC link Inverter
Off-circuit idle
time in years
4 5
6SE7087-6JP60
Operating Instructions
Industry Automation
10.2001
3AC 400 V
L1 L2 L3
2
1.5 mm
U2/T1
V2/T2
W2/T3
PE2
2
cable, etc.
Siemens AG
SIMOVERT MASTERDRIVES
+86-755-8660-6182
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