Connection
28
sign, because it may cause damage to humans.
Do not remove any part or plug in or out any connector when the device is powered on.
5.8 Alarm Terminal Block
The device provides an alarm terminal block on the rear panel for alarm output. When the
switch works properly, the normally-open contacts of the alarm relay are closed and the
normally-closed contacts are open; when an alarm occurs, the normally-open contacts are
open and the normally-closed contacts are closed. The alarm is outputted through a 3-pin
5.08mm-spacing plug-in terminal block.
Figure 27 Alarm Terminal Block (socket)
Electrical parameters of the relay:
Max Switch Voltage: 250VAC/220VDC;
Max Switch Current: 2A
Max Switching Power: 60W
Dielectric Strength: 2KV
Note
：
Pin 1 and pin 2 are normally-open contacts; pin 2 and pin 3 are normally-closed contacts. When
the switch works properly, pin 1 and pin 2 are closed, pin 2 and pin 3 are open; when an alarm
occurs, pin 1 and pin 2 are open; pin 2 and pin 3 are closed.
Wiring and Mounting
Step 1: Remove the alarm terminal block from the switch.
Step 2: Secure the three wires for alarm into the alarm terminal block in the required
sequence.
