10
Connecting alarm to potential-free contact
Once the alarm settings have been congured, the 
alarm must be assigned to a set of potential-free 
contacts. The terminals for these contacts are labelled 
K201 (relay 1) and K202 (relay 2) and are located to the 
right of the AC LOCAL OUT connection. 
The potential-free contact can be activated in two ways:
1. Normal: The contact closes when the alarm is 
activated and opens when the alarm is deactivated.
2.  Pulse: The contact opens and closes at the selected 
frequency for the congured length of time when the 
alarm is activated and does so again when the alarm 
is deactivated.
Figure 10: Relay 1 of 2