Siemens SINAMICS SM120 - Table 3-6 Power Stack Adapter 4: Electronic Power Supply; Table 3-7 Power Stack Adapter 4: Inverter Unit; Table 3-8 Power Stack Adapter 4: Braking Module; Table 3-9 Power Stack Adapter 4: PSA Link

Electronic power supply
Table 3-6 Power Stack Adapter 4: Electronic power supply
Terminal Designation Technical data
1 Electronics ground M Voltage: 24 VDC (-25% to +30%), 18 V to 31.2 V
Power consumption (without DRIVE-CLiQ or digital
outputs): 1 A max.
2 N.C.
3 Electronic power supply P24
Max. connectable cross-section: 2.5 mm²
Type: Screw terminal
Actual value channels
Table 3-7 Power Stack Adapter 4: Inverter unit
Single fiber-optic cable Meaning, actual value acquisition Technical data
X70, X71 Branch currents, phase L1 Fiber-optic cable type:
1 mm plastic optical fiber (POF)
Max. length of fiber-optic cable:
20 m
X72, X73 Branch currents, phase L2
X74, X75 Branch currents, phase L3
X76, X77 Output voltages
X78 to X81 N.C.
Table 3-8 Power Stack Adapter 4: Braking Module
Single fiber-optic cable Meaning, actual value acquisition Technical data
X78 DC-link voltage M-KM Fiber-optic cable type:
1 mm plastic optical fiber (POF)
Max. length of fiber-optic cable:
20 m
X79 DC-link voltage AM-M
X80 DC-link voltage AM-KM
X70 to X77, X81 N.C.
PSA link
Table 3-9 Power Stack Adapter 4: PSA link
Single fiber-optic cable Meaning
X90
(only available when operated with a
Braking Module)
PSA link for direct data exchange between Power Stack
Adapters
X91 to X93 N.C.
Description
3.4 Components
SINAMICS SM120 6SL38855?B
40 Operating Instructions 12/2015