MEN BL51E, User Manual

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Functional Description
20BL51E00 E2

2020-03-27 Page 62
3.15 Photocoupler Outputs
The photocoupler outputs of the BL51E have the following characteristics:

Default state (Shutters):
- Open

Switching voltage:
- 50.4 V DC max.

Current (switching and continuous):
- 120 mA max.
3.15.1 Front Connection
Table 34. Connector types – 6-pin PCB plug
Table 35. Pin assignment – OPT OUT (6-pin PCB plug)
Table 36. Signal mnemonics – photocoupler outputs
The photocoupler outputs are controlled via SMBus:
Connector Type
On BL51E 6-pin, 2-row PCB plug, 3.5 mm, Phoenix Contact DMC 1,5/ 3-G1F-3,5-LR
P20THR, part number 1787027
Mating 6-pin, 2-row receptacle, 3.5 mm, e.g., Phoenix Contact DFMC 1,5/ 3-ST-
3,5-LR, part number 1790496
1 DIG_ 2 DIG_IN_VREF-
3 OPT1_+ 4 OPT1_-
5 OPT2_+ 6 OPT2_-
Signal Direction Function
OPTx_+/- out Photocoupler output pins
See Chapter 5.1.2.3 Odometer, Photocoupler, Relay Signals SMB Register (
0x44
) on
page 87 .
1 2
5 6