Parker Hannifin
Important Safety Information
NOTE: The ACR90x0 designates the ACR9000, ACR9030, and ACR9040.
Warning — Risk of damage and/or personal injury
The ACR90x0 controllers described in this guide contain no user-
serviceable parts. Attempting to open the case of any unit, or to
replace any internal component, may result in damage to the unit
and/or personal injury. This may also void the warranty.
The following symbols appear in this guide:
Symbols Description
Protective Earth Ground
Functional Earth (Ground) Terminal
Shield, Frame, or Chassis Terminal
Digital Ground
Isolated Ground
Caution Risk of Electrical Shock
Caution, Refer to Accompanying Documentation
10 ACR9000 Series Hardware Installation Guide
www.comoso.com
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