Analog proportional control - PENN Controls - LIT-12011458 - C450Cxx - C450Rxx - C450Sxx - C450Yxx - System 450 Multi-Purpose Modular Control System - C450CBN Standard Control Module One Relay Output - C450CCN Standard Control Module Two Relay Outputs - C450CEN Communications Control Module for Ethernet - C450CPN Standard Control Module One Analog Output - C450CPW-400 Hybrid Control Module for EC Motor - C450CQN Standard Control Module Two Analog Outputs - C450CRN Communications Control Module for Modbus - C450RBN Reset Control Module One Relay Output - C450RCN Reset Control Module Two Relay Outputs - C450SBG Expansion Module One Low-Voltage Relay Output - C450SBN Expansion Module One Relay Output - C450SCG Expansion Module Two Low-Voltage Relay Outputs - C450SCN Expansion Module Two Relay Outputs - C450SPN Expansion Module One Analog Output - C450SQN Expansion Module Two Analog Outputs - C450YNN‐1 Power Module

System 450 Series Modular Controls Product Bulletin
Brand
PENN Controls
Product name
C450CBN Standard Control Module One Relay Output
C450CCN Standard Control Module Two Relay Outputs
C450CEN Communications Control Module for Ethernet
C450CPN Standard Control Module One Analog Output
C450CPW-400 Hybrid Control Module for EC Motor
C450CQN Standard Control Module Two Analog Outputs
C450CRN Communications Control Module for Modbus
C450RBN Reset Control Module One Relay Output
C450RCN Reset Control Module Two Relay Outputs
C450SBG Expansion Module One Low-Voltage Relay Output
C450SBN Expansion Module One Relay Output
C450SCG Expansion Module Two Low-Voltage Relay Outputs
C450SCN Expansion Module Two Relay Outputs
C450SPN Expansion Module One Analog Output
C450SQN Expansion Module Two Analog Outputs
C450YNN‐1 Power Module
Document type
Product Bulletin
Document number
LIT-12011458
Revision date
2021-07-21
Language
English

Analog outputs provide proportional analog signals for devices and equipment in your controlled systems.

Each analog output can generate either a 4 mA to 20 mA or 0 VDC to 10 VDC signal. The output signal type is self-selecting; after you connect the analog output to the controlled equipment, the output detects the analog input on the controlled equipment and generates the appropriate analog signal for the connected input.

You can set up an analog output to generate a direct acting or reverse acting proportional output signal. You can also set up the output signal strength to increase or decrease in either the direct acting or reverse acting mode. See the example in Figure 1.

An analog output’s control action is automatically determined by the setup values you select for the setpoint, end point, % output at setpoint, and % output at endpoint values when you set up the output in the UI.

A control ramp indicator appears on the output status screen for each analog output to represent the analog output’s control action.

Figure 1. Proportional analog output operation for reverse acting room heating application

See Table 1 for information on the System 450 control modules with this feature.