Honeywell DR4300 manual Output Wiring, Discrete Outputs

Installation

2.6 Output Wiring

ATTENTION

The recorder is available with several options and multiple output algorithms. Output terminal use depends on which output algorithm and options are used. The wiring diagrams in this section show how to wire the terminals. To see which terminals are used for what output function, refer to Table 2-12.This table applies to all control types. Each pen channel is configured separately, and each can use a different output algorithm. (The output algorithm is set with the control set up group “OUTALG” parameter.)

Table 2-12 Output Terminal Use for Output Algorithm and Option Combinations

		Terminal Function
OUTALG value	Current Out	Relay 1	Relay 2
	(TB5)	(TB4)	(TB3)
NONE	auxilary output*	alarm 1	alarm 2 or timer*
RLY	auxilary output*	control	alarm 2 or timer*
RLYD	auxilary output*	control 1 (heat)	control 2 (cool)
CUR	control	alarm 1	alarm 2 or timer*
CurT	control (cool)	control (heat)	alarm 2 or timer*
Tcur	control (heat)	control (cool)	alarm 2 or timer*

*Option

2.6.1 Discrete Outputs

Introduction

Each pen channel in the recorder models having display and keypad can be equipped with two optional discrete outputs. These outputs can be used for control or alarming, depending on the configuration as described in Section 4 – Configuration, Startup, and Operation of Recorder with Display.

Three types of discrete outputs are available:

•electromechanical relay

•solid state relay

•open collector output

ATTENTION

The electromechanical relays on the printed circuit assembly (PCA) for each pen channel can be wired for Normally Open (NO) and Normally Closed (NC) operation.

ATTENTION

The DR4300 is available as a limit controller. In a limit controller each pen channel’s printed circuit assembly Relay 1 (TB4 terminals 3 and 2 for NO contacts, and 2 and 1 for NC contacts) is used for limit control. When the recorder detects that the input has exceeded the limit (or fallen below the limit, depending on configuration), the controller goes to the limit state: Relay 1 is de-energized.

12/03 DR4300 Circular Chart Recorder Product Manual 37