Table of Contents
Advertisement
PRESYS
Instruments
Level 1 - General
Level 1 presents the options: PASS, TRIP, ALAR and ST.UP (see figure 13).
PASS - allows the user to enable or disable the password system for accessing
the configuration mode. The password system may be chosen as a key sequence, a
value (number chosen by the user and number 2030) or both. The correct key sequence
is obtained by pressing the UP, DOWN and ENTER keys in this order. When there are
trip alarm relays, the value-type password system is enabled, while the password key
sequence is now reserved to reactivate the alarm relays.
TRIP - enables alarms 3 (ALAR.3) and 4 (ALAR.4) as trip alarms (for 4-20 mA current,
1-5 V voltage or temperature inputs) , preventing the alarm to be activated in case of
sensor breaks or at the moment the sensor is reconnected. The alarms can be
configured as high-trip (HI) or low (LO). To disable the trip function, set TRIP as NO, so
that the relay 3 or 4 works in the same way relays 1 and 2 do.
ALAR - allows you to select one of three display modes for the alarm setpoints in
the operation mode: Hide, Lock and All. The Hide option hides the alarm setpoints. The
Lock option allows the user to view the setpoint, but not to modify it. Finally, the All option
allows the setpoints to be both viewed and changed.
ST.UP - configures the start-up operation by selecting the relays to be used (RELAY),
their state (ST.RL), execution time (Time) and indication (INDIC).
In RELAY the user can select the relays to remain fixed during the start-up according
to their type: relays with normal configuration or without trip (NORM), relays with trip (TRIP),
all relays (ALL) or none (NONE).
In ST.RL these relays can be configured to maintain their contacts in the last state
found when the start-up begins (LAST option) or to be released to return to the non-alarm
state (RLS option).
The start-up execution time (TIME) is set between 0 and 250 s.
To launch the start-up press the DOWN key during the indication of the process
variable and select the ST.UP mnemonic. In order to turn the start-up operation off before
the execution time is completed or in case it was set to zero, the operator can select the
AB.S.U. mnemonic, available after the DOWN key is pressed.
In INDIC configure the execution of the start-up to be indicated by the ST.UP
mnemonic alternating with the process variable (DISP option) or by a blinking LED on the
front panel (LED1 and LED2 options).
The table below refers to the ranges of the parameters shown in Figure 13.
Mnemonic
VALUE
TIME
Parameter
user password
start-up
execution time
DMY-2030-Light-5S-Energy
Range
-9999 to 30000
0 to 250
Factory
Units
Value
____________
0
0
seconds
Operation
Page 19
Advertisement
Table of Contents
