Baldor MN1928 installation manual 5-18Input / Output, 5.3.5.1BPL010-502- Active high inputs

5.3.5.1BPL010-502 - Active high inputs

The user power supply connection USR GND is common to all inputs. To activate an input, a voltage must be applied that is sufficient to cause at least 5mA in the input circuit. To ensure that an input becomes inactive, the current must be less than 1mA.

‘X6’

User

supply DIN16 24V

‘X6’

User

supply USR GND GND

Backplane & opto-isolator card

1

2k2

8

TLP521-4

96

pin

connector

NextMove ES

+5V

10k

74AHCT14	MintMT
	INX.16
	GND

Figure 20 - Digital input circuit (DIN16) with ‘active high’ inputs

5.3.5.2BPL010-503 - Active low inputs

The user power supply connection USR V+ is common to all inputs. To activate an input it must be grounded to the 0V side of the user power supply (USR GND). The internal pull-up resistor on the NextMove ES allows the input to be left floating when inactive or not being used.

‘X6’

User

supply USR V+ 24V

‘X6’

User

supply DIN16

GND

Backplane & opto-isolator card

6

2k2

1

TLP521-4

96

pin

connector

NextMove ES

+5V

10k

74AHCT14	MintMT
	INX.16
	GND

Figure 21 - Digital input circuit (DIN16) with ‘active low’ inputs

5-18 Input / Output MN1928