Siemens Sinamics GM150 6SL3835-2LN44-2AA0, Operating And Installation Instructions

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8.5.3.5 Speed monitoring with incremental encoder
Permanent speed monitoring enables motor control without an encoder. You can upgrade with
additional incremental encoders under the following conditions:
● When high-performance applications, such as bearing control, require a permanent speed
control.
● For long-continuing applications with low speeds.
8.5.3.6 Controlled stop, EMERGENCY STOP category 1
The EMERGENCY OFF function for controlled shutdown stops the drive by means of a quick
stop process along a deceleration ramp that must be parameterized.
Note
The drive is stopped during controlled deceleration without braking modules with only a very
low % braking torque. Depending on the load machine, the ramp-down procedure may take a
long time.
Connections of the EMERGENCY STOP button
Most of the contacts of the EMERGENCY STOP button are integrated in the control circuit of
the circuit-breaker. The two remaining normally-closed contacts of the EMERGENCY STOP
button are situated on the terminal block.
EMERGENCY
STOP button
Where connected
=.LA-S31:11-12
=.LA-S31:21-22
=.LA-S31:31-32
Circuit breaker con‐
trol circuit
=.LA-X11:9-10
=.LA-X11:5-6
=.LA-X11:7-8 If jumpered STOP; if not jumpered
EMERGENCY OFF (produces an
instantaneous stop command on
the circuit-breaker)
=.LA-S31:51-52 EMERGENCY STOP
customer
=.LA-X51:1, 2
=.LA-S31:61-62 Excitation equipment =.LA-X51:3, 4
Max. connectable cross-section: 4 mm² (AWG 10)
You will find further information in the section "Circuit book" in your operating instructions.
8.5.3.7 Automatic restart
After the power fails and returns, the drive is automatically switched on again, irrespective of
the length of the power failure. Alarms are acknowledged automatically and the drive is
restarted.
Operation
8.5 Functions
SINAMICS GM150 6SL3835-2LN44-2AA0
164
Operating Instructions Rev.201910281250 MUSTER