Danfoss iC7 Series Operating Manual page 24

Air-cooled and liquid-cooled system modules

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Operating Guide | iC7 Series Functional Safety

Table 8: Functional Safety I/O Terminal (X33) Functions in System Modules

Numbering

1) Terminals 41A, 41B, 45A, and 45B have double pins to make connections easier.

Due to the galvanic isolation of the safe inputs, various connections and different polarities are possible in the wiring.

See

Figure 6

and

Figure 7

for connection examples.

Setups with the same voltage level on both channels (+24 V) are supported as well as setups with different voltage levels (+24 V and

GND).

DANGEROUS VOLTAGE LEVEL

To avoid stacking and drifting of voltages to a dangerous level, GND PELV of the drive and the external safety device must be

interconnected.

Safety actuator

Figure 6: STO Connection Example for System Modules with +BEF2 Using Same Polarity

(continued)

Terminal name

S.INB-

S.FB-

NOTICE

Function

- Safe Input Channel B

- STO Feedback

AQ477043679710en-000102 / 172K2965A

Installation

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