Connecting Loop Devices; Connecting Inputs - Ziton ZP2-AF2-P Installation Manual

Chapter 2: Installation

Connecting loop devices

Each loop can support up to 127 devices (using the address range 1 to 127). For
detailed loop device installation information, see your device installation sheet.

Connecting inputs

Input functionality
Each control panel has two supervised inputs, marked INPUT1 and INPUT2. For
input configuration, see "Field configuration" on page 99.
Connecting inputs
Connect input switches to INPUT1 and INPUT2, as shown in Figure 14 on page
32. For input supervision (open and short circuit), install a 15 kΩ resistor.
If an input is not used, the 15 kΩ end-of-line resistor must be installed across the
unused terminals to avoid an open circuit fault on the input.
Input activation characteristics
Input activation characteristics are shown in the table below.
Table 15: Input activation characteristics
State
Active
Normal
Short circuit
High impedance fault
Open circuit
36
Activation value
60.2 Ω ≤ active value ≤ 8 kΩ
10 kΩ ≤ value ≤ 20.2 kΩ
≤ 60.2 Ω
8 kΩ < value < 10 kΩ
≥ 20.2 kΩ
ZP2-A Series Installation Manual