Can the switch signal circuit of the safety gate output at DC 24V be AC 220V?
Thread Content
Can the switch signal circuit output by the safety gate, powered by a DC 24V supply, be AC 220V? Is it still DC 24V?
I didn’t understand what you meant. Could you explain it more clearly?
Read the safety barrier technical specifications carefully; it’s all clearly stated there. . . . . . . . . . . .
A safety barrier output DO is generally not used; it’s better to opt for a relay instead. . .
There is information available regarding such safety barriers; the power supply comes in two versions: AC 220V and DC 24V. The output signals are specified as AC 220V/3A and DC 30V/2A. Does this mean that an AC power supply corresponds to an AC output signal, while a DC power supply corresponds to a DC output signal? Regardless of whether it’s an AC or DC power supply, does the output still include both AC and DC?
Safety barriers have not been used with 220V AC; the DO outputs are generally isolated using relays. From what you’ve described, AC 220V/3A and DC 30V/2A seem to refer to the contact capacity.
You must be referring to an isolated output safety barrier, which can replace relays and facilitate integrated installation. The safety barrier should still be powered by 24VDC; I have never used a safety barrier powered by AC. “The output signal indicates “AC 220V /3A, DC 30 V/2A”, which should refer to the capacity of the output contacts. The current in an AC220V circuit can reach 3A, while the current in a DC30V circuit can reach 2A.
There is information available on such safety barriers; the power supply options are AC 220V and DC 24V. The output signals are specified as AC 220V/3A and DC 30 V/2A. Yes, it must refer to the contact capacity – so the contacts corresponding to the AC 220V power supply are AC 220V/3A, while those corresponding to the DC 24V power supply are DC 30 V/2A? Do the contacts of these two power supplies also have AC 220V/3A and DC 30V/2?
Contact capacity refers to this: if a contact is connected in an AC220V circuit, for example for starting and stopping a motor, then the capacity of that contact is 3A. If the same contact is connected in a DC30V circuit, its capacity is 2A. This applies to a single contact, with its capacity depending on the environment in which it operates.
In other words, when powered by DC 24V, the contacts are AC 220V 3A or DC 30V 2A. When powered by AC 220V, are the contacts also AC 220V 3A or DC 30V 2A?
It’s possible, but for safety reasons, it’s better to use an intermediate relay to control the circuit