Toshiba PWU001Z-1 - Manual (Page 12)

E6580724
4.4. Memory protection function “ “ “ “prot prot prot prot” ”” ”
The memory protection function protects the selected memory so as to prevent it from erroneous
replacement of its data with different data copied from another memory.
When this function is actuated for a selected memory, it inhibits transcribing copied data to the memory
but permits to read data from the memory.
At the time of shipment or when all the memories are initialized by memory initialization function ( clr ),
LED indications are as follows:
in a b c = off sup = on
Operating procedure
Key LED indication Key operation and description
chc init
c0py
When the parameter writer is turned on as it is connected with the inverter.
“chc” appears on the display first and then “init” appears to indicate that
the power supply is being initialized. Lastly, the display shows “copy”.
c0py comp
pr0t
Selecting a desired function
Select “prot " (memory protecting function) with the SFT key.
Each time the SFT key is pressed. indication on the display changes from
“copy” (copying function) to “comp” (comparing function),”prot" (memory
protecting function). “clr” (memory initializing function) and to..”copy” again
in this order.
pr0t in Entering the selected function
After selecting “prot " with the SFT key, press the ENT key and “in”
(selecting inverter memory) appears on the display.
in a b
c sup
in
Selecting a memory to protect its data
Each time the SFT key is pressed, indication on the display changes from “in”
(selecting inverter memory) to “a” (selecting memory A), “b” (selecting memory
B), “c” (selecting memory C), “sup” (special parameter selection* 1 ) and to
“in” again in this order. Select the memory to protect its data.
in off
(When the memory is
protected, the display
changes to on from
in )
Entering the memory to protect its data
After selecting “in” (selecting inverter memory, by way of example) with the SFT
key, press the ENT key and the display shows the present memory protection
status. (When “on” appears on the display, the selected memory is protected.
When “off” appears on the display, the Selected memory is not protected.)
off on
off
Protecting the selected memory
Each time the SFT key is pressed, indication on the display changes between "
on
" (protecting the selected memory) and “off” (cancelling protection of the
selected memory) alternately.
on pr0t Executing protection of the selected memory
After selecting ''on" (protecting the selected memory, by way of example) with
the SFT key, press the ENT key. The parameter writer starts protecting the
selected memory (canceling protection in case of “off”) and indication of the
display returns to “port”.
If the ESC key is pressed, the parameter writer returns to the status one before.
(* 1 ) Protecting operation of “sup” is different from that provided for other memories and is shown below.
With the same inverter types (capacities): With different inverter types (capacities):
sup
Standard
parameter Special
parameter
sup
Standard
parameter Special
parameter Protection disabled
(write permitted)
on on
Write protected
(write prohibited)
off
off
(Note)
Note: When inverter types (capacities) are different, copying operation of parameters
(including special parameters) is prohibited.
SFT
SFT
SFT
ENT
ENT
ENT