Woodward easYgen-2500-5/P1-K33 Rental Version 8440-2029

Woodward  easYgen-2500-5/P1-K33 Rental Version 8440-2029

function of electronic devices. One interference factor is disabling

inductive loads, like coils of electromagnetic switching devices.

When disabling such a device, high switch-off induced voltages

may occur, which might destroy adjacent electronic devices or

result interference voltage pulses, which lead to functional faults,

by capacitive coupling mechanisms.

Since an interference-free switch-off is not possible without addi

tional equipment, the relay coil is connected with an interference

suppressing circuit.

If 24 V (coupling) relays are used in an application, it is required to

connect a protection circuit to avoid interferences.

Advantages and disadvantages of different interference sup

pressing circuits are as follows:

All parameters are assigned a unique parameter identification

number.

The parameter identification number may be used to reference

individual parameters listed in this manual.

The following parameters are used to set the unit language, the

current date and time, and the daylight saving time feature.

If daylight saving time starts at 2:00 am on the 2nd Sunday in

March and ends at 2:00 am on the 1st Sunday in November, the

unit has to be configured like shown in Ä Table 41 “Daylight saving

time – configuration example” on page 92 to enable an automatic

change to daylight saving time and back to standard time.

The contrast and the brightness of the display may be adjusted

using this screen

The controller utilizes a password protected multi-level configura

tion access hierarchy. This permits varying degrees of access to

the parameters being granted by assigning unique passwords to

designated personnel.

A distinction is made between the access levels as follows:

Code level

Code level CL0 (User

Level)

Standard password =

none

Code level CL1 (Service

Level)

Standard password = “0

0 0 1”

Code level CL2 (Tempo

rary Commissioning

Level)

No standard password

available

Code level CL3 (Com

missioning Level)

This code level permits for monitoring of the system

and limited access to the parameters.

Configuration of the control is not permitted.

Only the parameters for setting the language, the

date, the time, and the horn reset time are acces

sible.

The unit powers up in this code level.

This code level entitles the user to change selected

non-critical parameters, such as setting the parame

ters accessible in CL0 plus Bar/PSI, °C/°F.

The user may also change the password for

level CL1.

Access granted by this password expires two hours

after the password has been entered and the user is

returned to the CL0 level.

This code level grants temporary access to most of

the parameters. The password is calculated from the

random number generated when the password is ini

tially accessed.

It is designed to grant a user one-time access to a

parameter without having to give him a reusable

password. The user may also change the password

for level CL1.

Access granted by this password expires two hours

after the password has been entered and the user is

returned to the CL0 level. The password for the tem

porary commissioning level may be obtained from the

vendor.

Standard password = “0

0 0 3”

This code level grants complete and total access to

most of the parameters. In addition, the user may

also change the passwords for levels CL1. CL2 and

CL3.

Access granted by this password expires two hours

after the password has been entered and the user is

returned to the CL0 level