02.00 Function descriptions
SIEMENS AG 6RX1700-0AD76 9-7
SIMOREG DC Master Operating Instructions
Sequence of operations for cancellation of "Fast stop":
1. Stop applying "Fast stop" command
2. Enter "Standstill" command (e.g. via "Switch-on/shutdown" terminal)
3. Converter exits operating state o8
P258P088
P087
n < n (P370,P371)
n > n
n < n
ON
External fast stop
Sandstill field
Shutdown
Controller disabled
Switch-on/Shutdown
Fast stop
Internal fast stop
Internal controller enable
Internal setpoint enable
Actual speed
Brake control signal (B0255)
(holding break)
Internal standstill
field input
min
No fast stop
No fast stop
Controller enabled
Setpoint enabled
Setpoint reached
min
Release break
No standstill field
Internal fast stop
Setpoint =0
min
Setpoint reached
Close break
P087 Brake release time (positive in this example)
P088 Brake closing time
P258 Delay for automatic field current reduction
− The "Fast stop" command need only be applied as a short pulse (> 10 ms). It is then stored internally. The
memory can be reset only by applying the "Shutdown" command.
− All "Fast stop" commands are ANDed by the SIMOREG converter, i.e. all commands must be set to "No fast
stop" before the function can be deactivated.
− When n < n
min
(P370, P371) is reached for the first time, an internal interlock is activated which prevents the
drive from attempting to brake again if the motor is turned by external forces. The n < n
min
signal then disappears again.
9.3.3 Switch-on / shutdown (ON / OFF) terminal 37 - control word 1, bit 0
The "Switch-on / shutdown" (ON / OFF) function is controlled via the "Switch-on command of ON /
OFF1" (= ANDing between signal from terminal 37 and binector selected in parameter P654, level- or
edge-triggered, see below) and bit 0 of connector selected as the control word in P648.
The following operating modes are possible:
P648 = 9: The control bits in control word 1 are input bit-serially. "ON / OFF" is controlled via the
"Switch-on command of ON / OFF1".
P648 ≠9: The connector selected in P648 is used as control word 1. Bit 0 of the control word is
ANDed with the "Switch-on command of ON / OFF1" to produce the "ON / OFF"
command (ON only if both signals are log. "1").
P445 = 0: The "Switch-on command of ON / OFF1" is generated as an AND operation between the
signal from terminal 37 and the binector selected in P654 (level-triggered, 0 = shutdown,
1 = switch-on).
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