Noby UK Noby-220iR2 2-Zone - Manual (Page 9)

Noby-220iiiiR2 Installation Manual Page 9 Software Revision1-0
- - -
Input / Output Terminals
External Fault Input (Terminal 1)
The Fault Input terminal permits a fault signal from external equipment to be indicated on the Noby-220iiiiR2
control panel. The LED indication is non-latching i.e. the LED follows the Ext. Fault Input status. The
polarity of the input is programmable. The factory setting is for a +12V signal to be applied to the terminal to
bring up a fault indication. Note that connecting external equipment also requires a ground reference
connection i.e. 0V from the external equipment must be connected to 0V on the Noby-220iiiiR2 (Terminal 4).
From normal standby User Mode enter the following key sequence:
Engineer Access Code-1 Select Toggle Fault Input Polarity Option
LEDs Off= +12V applied*
LEDs On= +12V removed
* Factory default setting
• The green Power LED flashes rapidly upon successfully entering the Engineer Access Code-1.
• The LEDs surrounding button
indicate the current option status.
• Toggle button
to set/unset the desired option.
• Press to accept OR press to quit without updating the option.
Fault Output (Terminal 2)
A 12V/20ma open-collector output signal. Normally high (12V), it falls to 0V upon detection of any fault
originating at the local panel only i.e. does not include the Ext. Fault Input, iiiinterlink bus faults, or any fault
originating at a remote panel. Note that connecting external equipment also requires a ground reference
connection i.e. 0V on the Noby-220iiiiR2 (Terminal 4) must be connected to 0V on the external equipment.
1 1 2 2 2 1 1
1
1
Figure 3:
Input / Output
Terminal Strip