Technical Data of the Entire \ Module

Rated supply voltage of the module		24 V DC (UP/ZP)
Current consumption of the module (UP)		15 mA
Process voltage UP
	Rated value	24 V DC (for inputs and outputs)
	Max. current loadability for the supply terminals	10 A
	Protection against reversed voltage	Yes
	Rated protection fuse at UP	10 A fast
	Electrical isolation	CS31 bus interface from the rest of the module
	Inrush current from UP (at power-up)	0.040 A²s
	Current consumption from UP at normal operation / with outputs	0.1 A + max. 0.008 A per input + max. 0.5 A per output
	Connections	Terminals 1.8 - 4.8 for +24 V (UP) and 1.9 - 4.9 for 0 V (ZP)
Max. power dissipation within the module		6 W (outputs unloaded)
Number of digital inputs		8
Number of configurable digital inputs/outputs		16
Reference potential for all digital inputs and outputs		Minus pole of the supply voltage, signal name ZP
Address setting		With 2 rotary switches on the front panel
Diagnosis		Diagnosis and Displays CS31 Bus Module DC551-CS31 with Digital Inputs and Output
Operating and error displays		32 LEDs altogether
Weight (without Terminal Unit)		Ca. 125 g
Mounting position		Horizontal Or vertical with derating (output load reduced to 50 % at 40°C per group)
Cooling		The natural convection cooling must not be hindered by cable ducts or other parts in the switch-gear cabinet.

Note

All I/O channels are protected against reverse polarity, reverse supply, short circuit and continuous overvoltages up to 30 V DC.