User Guide for PATTERSON models including: 14 High Velocity Industrial Fan, 14, High Velocity Industrial Fan, Velocity Industrial Fan, Industrial Fan, Fan

EC Motor Wiring Quick Start Guide

EC Motor Wiring Quick Start Guide

14" High-Velocity Industrial Fan - Heavy Duty Fan — Patterson Fan Co.

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EC-Motor Wiring Quick Start Guide

+20V DC DO-1 DI-4 DI-3 DI-2 DI-1 GND AI-1
+10V DC +GND
RS485 A RS485 B

Dipswitch 1: Motor Direction

Dipswitch 2: DC or mA Speed Control

AC L2/N AC L1

GND

Figure 1

Control Signal Wire Entry
Power Supply Entry

+20V DC DO-1 DI-4 DI-3 DI-2 DI-1 GND AI-1
+10V DC +GND
RS485 A RS485 B

Optional Speed Control
Speed Controller 1 2 3

+20V DC DO-1 DI-4 DI-3 DI-2 DI-1 GND AI-1
+10V DC +GND
RS485 A RS485 B

Full Speed
Factory default configuration

+20V DC DO-1 DI-4 DI-3 DI-2 DI-1 GND AI-1
+10V DC +GND
RS485 A RS485 B

Controlled by Another EC-Motor

Leader

Follower

+20V DC DO-1 DI-4 DI-3 DI-2 DI-1 GND AI-1 +10V DC +GND RS485 A RS485 B

+20V DC DO-1 DI-4 DI-3 DI-2 DI-1 GND AI-1
+10V DC +GND
RS485 A RS485 B
pattersonfan.com 800.768.3985

0-10V or 4-20mA
0-10V is default configuration. For 4-20mA, change
Dipswitch 2 in Figure 1.
Ground Signal

+20V DC DO-1 DI-4 DI-3 DI-2 DI-1 GND AI-1
+10V DC +GND
RS485 A RS485 B

Mod Bus
See motor instructions for full details.
Ground Modbus A Modbus B
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References

• Patterson Fan Co.