RS.8D.M2.22
AK2-SC 255 Reference Manual
11
PART ONE
Configuration
1 - 1. Initial Configuration
Note: We use the formal type designation “AK2-SC 255” occasionally in this manual, but
most often you will see the short form of the name: “SC 255.
”
Configuration of an AK2-SC 255 is easy using the keypad and display, and even
easier using Danfoss AKA 65 Network Interface software running opn a PC con-
nected to the controller. This chapter describes configuration from the AK2-SC 255
keypad. You can easily adapt these instructions for the PC keyboard and mouse after
reading Chapter 3, “Using AKA 65 Software on Your PC.”
We will address configuration of each area of a supermarket control system in this
section of the manual. Initial configuration for equipment start-up may be limited to
such items as are necessary to check out the mechanical equipment or provide basic
service. The configuration can be changed or added to at any time later.
Battery
The unit’s backup battery power is automatically enabled when the unit is first
externally powered. Note that if you receive the unit partially configured, the battery
will have been enabled. Normal battery life is a minimum of ten months, but the
battery is only used when main power is interrupted. In a unit which rarely experi-
ences power interruptions, the battery can last as long as eight years.
If the battery is disabled (by removing it, or when it ultimately discharges completely)
any information stored in the unit (set points, schedules, etc.) will be lost. Do not
remove the battery.
Authorization codes
When the SC 255 is turned on for the first time, the Main Menu will appear as at left
below:
Before you can enter configuration information, you must select Authorization and