AXBB-E input attached to relay coil

[Tobe91]

Hello,

I have a question regarding the wiring of my CNC control curcuit.
In the attachements is a picture which shows my question.

The safety relais - port is connected to O1 for charge pump mechanism and the + port is connected to the emergency switch.
So when the charge pump signal is received the output O1 is switched on and if the emergency switch isn't pressed, the safety relais (1 NO contact) enables the VFD.

My question is regarding the connection to the I2+ input port of the AXBB-E:
I would like to sense the emergency switch as E-Stop input for AXBB-E, is this possible or can there be problems with the connection to the relay coil?

I know a relay with two contacts would be maybe better, but that's the hardware which I currently got.

Thanks, Tobias