Siemens 6SN1123-1AA00-0DA2 Configuration Manual page 290

05.01
AUTOMATIC mode
The interlocking circuits terminals 51–52/53–54/55–56/57–58/511–512 should
be inserted into circuit =4. The interlocking circuit terminals 611–612/613–614 is
closed.
Key–operated switch –S15 is set to automatic, contactor –K15 pulls–in. The
monitoring circuit, drives stop in front of contactor =4–K31 is closed via termi-
nals 53–54/55–56. This means that the drives can be started under the pow-
er–on conditions specified in circuit example =4, using the pushbutton, drives,
Start =4–S32.
Set–up operation
Key–operated switch –S15 is set to setting–up, contactor –K15 drops–out, con-
tactor –K16 closes. The monitoring circuits terminals 53–54/55–56 are open.
This means that the drives cannot be started. When the monitoring circuit, termi-
nals 511–512 is opened, pushbutton =4–S32 – Start drives is ineffective in the
setting–up mode.
Using the interlocking circuit terminals 57–58, the drop–out delay for contactor
=4–K32, used for the shutdown time of the spindle drive is changed–over from
5 s, for example, to the shorter time of the FD drives, for example, 0.5 s. If a
fault condition is present this means that the complete drive group is already
shutdown after this shorter time. Further, with the changeover to setting–up, the
speed setpoint for the drives is reduced via PLC I18. The speeds and feed ve-
locities are therefore to be reduced to permissible values according to the type
C Standard or the hazard analysis.
Notice
Setpoint limiting is not a safety–relevant function.
Agreement function
The safety relay –K11 and contactors –K13/–K14 are switched–in – if the feed-
back circuit is closed – using pushbutton –S11 – agreement (pushbutton with
two positions).
The interlocking circuit is then closed through terminals 53–54/55–56. A start
pulse must be generated via PLC I17 with a time delay >= 80 ms; this pulse is
output at PLC O17. Contactor –K17 briefly pulls–in and issues the start com-
mands for contactors =4–K31, –K32, –K33, –K35 and –K36 through terminals
51–52.
The start inhibit functions are withdrawn and therefore the drives are enabled in
a safety–relevant way – as long as the agreement button is pressed.
Using the non safety–relevant PLC function keys – in conjunction with the hard-
ware agreement function – the selected drives can now be individually tra-
versed with reduced parameters.
Notice
No motion may be started by just pressing the agreement button alone. Note:
When terminal 81 – ramp–function generator fast stop – is withdrawn, after
every agreement command, the spindle induction motor must be
re–magnetized and therefore starts with some delay w 0.5 s.
© Siemens AG 2012 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
8 Important Circuit Information
8.7 Circuit examples =1 to =9 with SIMODRIVE 611
8
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