Technical data

Technical Manual Cold Storage Controllers TKP / TKC x130 - x140Page 4
User levels
To avoid that unauthorized persons change parameters, the para-
meters are access protected until a correct code is entered.
3 different user levels exist:
1. Customer Level
In this level only setpoints can be changed or defrost can be
started manually, but it is impossible to change the configura-
tion of the unit.
2. Service Level (call-up with code 2)
Here the service contractor finds parameters and information
for start-up and service.
3. Configuration Level (call-up with code 3)
Here you can change all parameters, even the fundamental
functions to assign inputs and outputs.
In the single levels only the accessable parameters will be displayed
(marked by 'Level 1,2,3' on the parameter pages).
Using the Access Protection
The parameter „
operator layer “ on Mode Page is factory set to „no“.
Thus you will see all parameters, the same as if the 'Configuration-
Level' would be active.
After start-up, you protect the controller unit effectively by changing
parameter „ operator layer “ (mode page) to „yes“. If you don’t touch
any key for at least 3 minutes or if you switch off power for a moment,
protection will be activated. Thus only the parameters of the Customer
Level can be displayed.
All other parameters are hidden now and can be accessed only by
knowing the code.
To change from Customer Level to Service- or Configuration Level
do as follows:
• Select 'basic Display',
• Press key "Prog",
• Enter code for desired level.
Change parameters
To change a parameter in the single user levels, the unit frequently
expects an additional 'Identification Code'. (see right column).
As long as parameter "
operator layer " is not set to "no", the unit
changes to the Customer Level if no key is pressed for about 3
minutes.
TKP/TKC
16.06.99 14:39
operator
Enter :> 0 <
Codes
Code 2: ........ Fixed Code: - 88 - (calls up Service Level)
Code 3: ........ Month + Hour + 20 (calls up Configuration Level)
Example:
(Note: Real-time clock must be set to the right time and
date before.)
You want to change a parameter at a day in june at 9:35
in the morning. Identification Code = 6 + 9 +20 = 35.
Access Protection / Unauthorized changing of parameters
Identification
Almost all parameters, except the temperature setpoints, are pro-
tected by a simple password.
If you have to change a parameter and you have pressed the
"PROG"-key, this display appears:
The controller expects now the input of a code-no.
This code-no. (Code 1) is related from the actual time of the day as
the sum of the
hour (0 to 23) plus 10
Example:
At 9:35 a.m. the code is 9 + 10 = 19.
At 21:35 (9:35 p.m.) the code would be 21 + 10 = 31.
If you have pressed no key for about 3 minutes, the parameters
are locked again automatically.
Identification
Enter :> 0 <