ABB ACS 502 Series User Manual

Chapter 2 – Overview of the ACS 502/504
ACS 502 Installation & Start-up Manual 2-17
Custom Options
Custom options for the ACS 502 fall into five main categories:
• Control Options
• Disconnect Options
• Bypass Options
• Thermal Overload Relays
•Meters
Control Options The Control Options are Hand/Off/Auto and Hand/Off/Auto with Speed
Potentiometer. Both options include 115 VAC control power and control
power transformer. The 115 VAC control can be ordered without Hand/Off/
Auto or Speed Potentiometer.
When no control option is ordered, the top half of the terminal board is not
used. This board (illustrated in Chapter 3 – ACS 502 Installation Instructions
in this manual) is the location of Terminal Block TB1, to which all
connections are made. Terminal Board connections are described in this
manual. 115 VAC Control is required with all Bypass options.
Hand/Off/Auto Hand/Off/Auto is a door mounted switch, wired at the factory. This switch
allows you to select one of three modes. In the Hand mode, the Drive Enable
signal enables the drive and the ACS 502 Keypad (Operating Data Parameter
14) controls the speed. In the Off mode, the drive is disabled even if you use
an external speed reference or if you attempt to start the drive via the keypad.
In the Auto mode, a remote contact closure starts the drive, provided you have
connected a remote contact. A remote signal (voltage or current) controls
speed. The remote signal controlling speed can also be pneumatic, but
requires an option board. The 115 VAC control transformer provides control
voltage.
Hand/Off/Auto with
Speed Potentiometer
Hand/Off/Auto with Speed Potentiometer is the same as Hand/Off/Auto with
the addition of a manual speed potentiometer mounted on the drive enclosure.
In the Hand mode, the speed potentiometer controls the speed.
Input Options The Disconnect Options are the Door Interlocked Disconnect Switch and the
Door Interlocked Circuit Breaker.
Door Interlocked
Disconnect Switch
The Door Interlocked Disconnect Switch is a non-fused disconnect switch.
Fuses are provided as standard, mounted separately.
Door Interlocked Circuit
Breaker
The Door Interlocked Circuit Breaker is a thermal magnetic, molded case
circuit breaker.
Both options are a thru-the-door interlock design and can be padlocked in the
OFF position.
Input Line Reactor 3% or 5% input line reactors to reduce the harmonics to the power line.

ABB ACS 502 Series Specifications

General

Brand	ABB
Model	ACS 502 Series
Category	Controller
Language	English