Other Connections; Analog Tachometer Connection - Siemens SINAMICS DCM Betriebsanleitung

4.10

Other connections

Depending on the options installed, further connections have to be established, e.g.
connection for external auxiliary equipment, main contactor/circuit breaker, cabinet
illumination with service socket, cabinet anti-condensation heating, contactor safety
combinations (EMERGENCY OFF / EMERGENCY STOP), thermistor motor protection unit,
temperature evaluation unit, insulation monitor, communication modules and encoder
evaluation.
For detailed information about the interconnection of individual options with interfaces, see
the documentation.
Note
All cables/lines laid within the cabinet must be routed in the intended cable ducts.
4.10.1

Analog tachometer connection

The connection is located on the "Power Interface" module of the SINAMICS DC MASTER
DC Converter.
The cable's shield is placed directly after the entry to the cabinet on the provided shield
support bar and the cable is routed and connected directly to input terminals XT1-103 and
XT1-104 on the power interface board without intermediate terminal. The shield is routed up
to the connecting terminals without interruptions. The maximum permissible voltage at the
input terminals is 270 V.
Table 4- 8
Terminal
XT1-103
XT1-104
Module C98043-A7105 / A7107 Power Interface 400 V - 600 V or
C98043-A7106 / A7108 Power Interface 690 V - 950 V
SINAMICS DCM Cabinet
Operating Instructions, 04/2015, A5E36161239/RS-AA/001
Terminal strip XT1 on the SINAMICS DCM
Function
Tachometer connection
8 to 270 V
Ground, analog
Technical data
±270 V
Input resistance 159 kΩ
Resolution ±14 bits
Electrical installation
4.10 Other connections
91