Siemens SIMOVERT MASTERDRIVES 6SE7087-6CX86-2BA1 Manual page 61

06.2005
Checking actual
value acquisition
and precharging
Siemens AG 6SE7087-6CX86-2BA1
SIMOVERT MASTERDRIVES AFE
Issue the ON command via PMU (by default, ON command P554
already set on PMU)
♦ Reaction: Precharging begins with picking up of the contactor -K4,
and the DC link voltage (see display parameter r006)
rises within approximately 1 second to the final value,
approximately 1.35 times the mains voltage. The main
contactor -K1 is connected once the final value has been
reached.
♦ Contacts: cf. section entitled "Control connections"
Main contactor ON command from CUSA X100 terminal
6 (M24)-7 signal from normally-open CUSA binary output
2
This command is forwarded to the mains angle
acquisition circuit
VSB: connector X3: terminal 5 signal
Output to potential-free contact VSB:
X2
X2
♦ Reaction: Once the main contactor -K1 has picked up, the
precharging contactor -K4 opens after approx. 500 ms.
♦ Status:
0011 "Ready to Run"
The AFE inverter is now in the "Ready to Run " state and
the following actual values must be correctly displayed:
r032:
r030:
If the fault F004 occurs, check the mains direction of rotation, check
the main contactor's contacts and check the mains voltage.
If alarm A039 or F007 occurs, please check the 24 V power supply of
the VSB board (connector -X3 pin 2 and 3).
Operating Instructions
X3: terminal 1 M24
terminal 1: 230 V AC
terminal 3: to coil of main contactor -K1
Mains frequency tolerance ± 2 %
Mains voltage, currently applied
RMS value tolerance ± 2 %
Basic Function Check
8-3