Wiring up the Alarm output on Leadshine AM882

[m_c]

The alarm terminals don't output any power. It's an open collector output capable of switching 100mA at 30V.

So you still need a relay as per John's suggestion to connect into to the Estop circuit, but you need to provide the power to the relay, then connect the relay to ground via the alarm terminals. You could also have the relay in circuit after the alarm terminals, but it's usually better practice to switch the ground side in electronics.