Safety Shutdown (E-Stop) - Siemens SIMOREG DC Master 6RA7028-6DS22 Operating Instructions Manual

Function descriptions
When the control word method is used, the following operating modes are possible (see also Section
8, Sheet G181):
P649 = 9:
P649 ≠ 9:
The "Fixed setpoint" function is input when one or several of the named sources (binectors, bits in
control word) switch to the log. "1" state. In this case, a setpoint selected in parameter P431 is
assigned to each source. If "Fixed setpoint" is input via several sources simultaneously, the associated
setpoints are added (limited to ±200%).
Parameter P432 can be set to define for each possible fixed setpoint source (binector, bit in control
word - logic operation, see block diagram in Section 8) whether or not the ramp-function generator
must be bypassed. When the ramp generator is bypassed, it operates with ramp-up/down times of 0.
Sequence for entering Fixed Setpoint function:
The fixed setpoint is injected instead of the main setpoint.
Sequence for cancellation of Fixed Setpoint function:
When all the possible sources for injecting the fixed setpoint (binectors, bits in control word) have
changed back to log. "0", the setpoint selected in parameter P433 (main setpoint) is switched through
again.
9.8

Safety shutdown (E-Stop)

• Switch operation
(switch between terminals XS-105 and XS-106; XS-107 open; XS-108 open)
Opening this switch activates the safety shutdown operation.
• Pushbutton operation
(Stop pushbutton with NC contact between terminals XS-107 and XS-106; Reset pushbutton with
NO contact between terminals XS-108 and XS-106; XS-105 open)
Stop pushbutton pressed: Safety shutdown is executed and stored
Reset pushbutton pressed: Storage of safety shutdown is cancelled
Sequence of operations for entering E-STOP command:
1. Enter "E-STOP" command
2. Disable ramp-function generator, n and I controllers
3. I = 0 is applied
set
4. The pulses are disabled when I = 0
5. Output signal "Close operating brake" (binector B0250 = 0, when P080 = 2)
6. Converter reaches operating state o10.0 or higher
7. An "older" actual field current value (K0265) is input as the field current setpoint upper limit
(function is "released" in operating states of ≤o5)
8. The "Line contactor closed" relay drops out
9. Drive coasts to a standstill (or is braked by the operating brake)
10. Parameterizable delay time (P258) runs down
11. The field is reduced to a parameterizable value (P257)
12. When n < n
(binector B0250 = 0, when P080 = 1)
Note:
"E-Stop" has the same effect as "Voltage disconnection" ("OFF2"). In addition, however, the line
contactor drops out (via relay K1) in response to a hardware function 15 ms after input of the
command.
9-16
The control bits in control word 2 are input bit-serially. The binectors selected via P680
and P681 determine bits 4 and 5 of control word 2 (= bits 20 and 21 of complete control
word), and thus input of the "Fixed setpoint" function.
The connector selected via P649 is used as control word 2. Bits 4 and 5 of this word
control the input of "Fixed setpoint".
(P370, P371) has been reached, the "Close holding brake" signal is output
min
SIEMENS AG
SIMOREG DC Master Operating Instructions
02.00
6RX1700-0AD76