Technical Data of the Relay Outputs

Number of channels per module	4 relay outputs
Distribution of channels into groups	4 groups of 1 channel each
Connection of the four relays	See figure Electrical Connection Digital Input/Output Module DX531
Electrical isolation	Between the channels and from the rest of the module
Indication of the output signals	1 yellow LED per channel, the LED is ON when the relay coil is energized
Output delay (0->1 or 1->0)	On request
Relay power supply	By UP process voltage
Relay outputs
output short-circuit protection	Must be provided externally with a fuse or circuit breaker
rated protection fuse	6 A gL/gG per channel
Output switching capacity
resistive load, max.	3 A; 3 A (230 V AC), 2 A (24 V DC)
inductive load, max.	1.5 A; 1.5 A (230 V AC), 1.5 A (24 V DC)
lamp load	60 W (230 V AC), 10 W (24 V DC)
Life time (cycles)	Mechanical: 300 000; Under load: 300 000 (24 V DC at 2 A), 200 000 (120 V AC at 2 A), 100 000 (230 V AC at 3 A)
Spark suppression with inductive AC load	Must be performed externally according to driven load specifications
Demagnetization with inductive DC load	A free-wheeling diode must be circuited in parallel to the inductive load
Switching frequency
with resistive load	Max. 10 Hz
with inductive load	Max. 2 Hz
with lamp load	On request
Max. cable length
shielded	1000 m
unshielded	600 m