Interfaces Of The Power Stack Adapter; Gating Of The Power Semiconductors; Selecting Safe Torque Off - Siemens SINAMICS SM150 Operating And Installation Instructions

Technical data and drawings
B.2 Terminal assignments
B.2.4

Interfaces of the Power Stack Adapter

B.2.4.1

Gating of the power semiconductors

Number
①
③
⑤
②
④
B.2.4.2

Selecting Safe Torque Off

Interface
X241
X242
Note
The internal safety relay must be energized in order to operate the inverter (see Chapter
"Gating the power semiconductors"). If the option "Safe Torque Off (STO)" is not available,
this circuit function is achieved permanently by inserting jumpers between terminals 1 and 2
of the two connectors X241 and X242.
If the option "Safe Torque Off (STO)" is used, the safety relay is controlled by the two terminals
2 of connectors X241 and X242. The feedback information from the NC contact terminal 3 at
X241 and X242 is evaluated in a higher-level safety control to check the switching state.
204
Duplex fiber-optic Meaning:
cable
Gating power semiconductors
X11 to X14 Inverter phase u
X31 to X34 Inverter phase v
X51 to X54 Inverter phase w
X15 / X16 Crowbar
X35 / X36 Braking chopper
Terminal Designation
1 +24 V (internal)
2 Relay coil 1 (+)
3 NC contact
1 M
2 Relay coil 2 (-)
3 NC contact
Technical data
Fiber-optic cable type: 2 mm
plastic optical fiber (POF)
Max. length of fiber-optic cable:
20 m
Technical data
Relay, coil data:
● Rated voltage: 24 V DC
● Operating range: 21.6 to 26.4 V DC
Relay, contact data:
● Single contact, positively driven
● Rated current: 8 A
● Rated voltage / max. switching voltage: 240/400
V AC
● Max. switching power 12 W (24 V, 500 mA)
SINAMICS SM150 6SL3845-7NN46-7AA0
Operating Instructions 04/2017