ADLINK ND-6058 - Manual (Page 48)

40 • Introduction
• Module internal watchdog timer : 150ms
• Power failure threshold : 4.65 V
• Safety value : 8 output channels
• Host programmable watchdog : 100 ms ~ 25.5 sec
♦ Power
• Power supply : +10V to +30V
• Current consumption : 1.2 W
1.9.4 Using Relay Output
Form A Relay :
NO
COM
Control Bit = High (1)
NO
COM
Control Bit = Low (0)
Form A relay only has two contacts : NO (Normal Open) and
COM( Common). The COM post can make contact either NO post or not
contact NO post. When the control bit is high (1), the COM post and NO post
are contacted. If the control bit is low (0), the COM post and NO post does
not make contact.
In normal power-up and reset, the relay is in low status.