DOC-0017-04-EN: AC20 Series - Hardware Installation Manual         
2 (154)  DOC-0017-04-EN-A 22.03.2023  
1  Safety Requirements 
IMPORTANT: Please read this information BEFORE installing the equipment. 
The contents of this manual have been verified against the associated hardware and software. Although 
every effort has been taken to ensure the accuracy of this document, it may be necessary without notice, to 
make amendments or correct omissions.  
Parker Hannifin Manufacturing cannot accept responsibility for damage, injury, or expenses resulting there 
from. 
 
1.1  Intended Users 
This manual is to be made available to all persons who are required to install, configure or service 
equipment described herein, or any other associated operation. 
The information given is intended to highlight safety issues, and to enable the user to obtain maximum 
benefit from the equipment. 
1.2  Application Area 
The equipment described is intended for industrial motor speed control utilising AC induction motors or PMAC 
motors. 
1.3  Personnel 
Installation, operation and maintenance of the equipment should be carried out by competent personnel. A 
competent person is someone who is technically qualified and familiar with all safety information and 
established safety practices; with the installation process, operation and maintenance of this equipment; 
and with all the hazards involved. 
1.4  Product Warnings, Cautions and Information notices 
Special attention must be paid to the information presented in warning, caution and information notices when 
they appear in this manual. Definitions of caution, warning and information notices are shown below: 
 
DANGER 
Risk of electric shock 
 
WARNING 
Hot surfaces 
 
Warns of danger to personnel. Refer to documentation. 
CAUTION 
Warns of danger to equipment. Refer to documentation. 
 
EARTH / GROUND 
Protective Earth Conductor Terminal 
 
INFORMATION 
Read further information before proceeding.