User manual

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Chapter 6 – Initializing the LT
LT Series User Manual
6.6 INITIALIZE INTERNAL MEMORY
To initialize the LT unit’s internal memory, enter the default password, “1101,” or
the password entered in the SYSTEM SET UP screen.
Chapter 5.3 – “INITIALIZATION”
The time required for Initialization is between 10 and 20 seconds.
This setup screen initializes all LT screen data (internal memory) and Back Up
SRAM. Initialization does not erase the SYSTEM SET UP, SIO protocol, internal
clock settings, logic programs, or the retentive variables.
You cannot cancel the Initialization procedure after pressing [START].
Set the LT unit’s internal clock in the Set Up Time screen. Adjust the Date and
Time display settings in the PRESENT TIME setting item.
6.7 SET UP TIME
The screen displays
the Hour and Minute
settings, but not the
Seconds.
The LT unit’s internal clock has a slight error. At normal oper-
ating temperatures and conditions, with the LT operating from
its lithium battery, the degree of error is ±65 seconds per
month. Variations in operating conditions and battery life can
cause this error to vary from -380 to +90 seconds per month.
For systems where this degree of error will be a problem, the
user should monitor this error and make adjustments as nec-
essary.