Specifications

1-28 Introduction
² Watchdog Function
• Module internal watchdog timer : 150ms
• Power failure threshold : 4.65 V
• Safety value : 4 output channels
• Host programmable watchdog : 100 ms ~ 25.5 sec
² Power
• Power supply : +10V to +30V
• Current consumption : 0.8 W
Using Relay Output
The ND-6060 contains two types of relay : Form C and Form A. The
relay R3 and R4 are form C relays, and R1 and R2 are plain form A
type. The difference between these two types of relay are:
1. Form C Relay : ( R3, R4)
NO
NC
COM
Control Bit = High (1)
NO
NC
COM
Control Bit = Low (0)
Form C relay has three contacts : NC ( Normal Close), NO ( Normal
Open), and COM( Common). The CM post, located at the middle, can
make contact either NO post or NC 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 NC post make contact.
In normal power-up and reset, the relay is in low status.
2. Form A Relay : ( R1, R2)