Page 5 of 12
6. INDEX & DOWN ARROW:
Pressing these keys simultaneously will allow backing up
one menu item, or if at the first menu item they will cause the display to return to the
PRIMARY MENU. If an alarm condition has occurred, these keys may be used to reset
the alarm.
7. INDEX & ENTER:
Pressing these keys simultaneously and holding them for 5
seconds allows recovery from the various error messages. The following menu items
will be reset:
ALiH: Alarm inhibit
OPEn InP: Thermocouple error message
bAd InP: RTD error message
CHEC CAL: Check calibration error message
Correct the problems associated with the above conditions first before using these reset
keys. More than one error could be present. Caution is advised since several items are
reset at one time.
While in the PRIMARY or SECONDARY MENU, if no key is pressed for a period of 30
seconds, the display will return to the HOME position displaying the temperature value. The
time is increased to 1 minute when in the SECURE MENU.
NOTE:
To move to the PRIMARY MENU quickly from any other menu, press the UP
ARROW & ENTER keys followed by pressing the INDEX & DOWN ARROW keys.
SECURITY LEVEL SELECTION
NOTE: Lock menus to prevent unauthorized changes to controller settings.
Four levels of security are provided. The security level can be changed under SECr in the
SECURE MENU. The display shows the current security level. Refer to the password table
below for the correct value to enter for the security level desired. To change security levels,
set the password value using the UP & DOWN ARROW keys and press the ENTER key.
The SECr menu item's security level may be viewed or changed at any time regardless of
the present security level. The password values shown in the table cannot be altered, so
retain a copy of this page for future reference. This will be the only reference made to
password values in this instruction book.
PASSWORD TABLE
DISPLAYED VALUE
WHEN VIEWED
1
2
3
4
SECURITY LEVEL
MENU
SECURITY
Primary
Locked
Secondary
Locked
Secure
Locked
Primary
Unlocked
Secondary
Locked
Secure
Locked
Primary
Unlocked
Secondary
Unlocked
Secure
Locked
Primary
Unlocked
Secondary
Unlocked
Secure
Unlocked
PASSWORD
VALUE TO ENTER
1110
1101
1011
111
Page 8 of 12
InPt
Input Fault Timer: Select OFF, 0.1 to 540.0 minutes. Whenever an Input is out of
range (UFL or OFL displayed), shorted, or open the timer will start. When the time
has elapsed, the controller will revert to a safe condition (Output Off, Flashing
Display). If OFF is selected, the Input Fault Timer will not be recognized (time =
infinite).
SPL
Set Point Low: Select from the lowest input range value to SPH value. This will set
the minimum SP value that can be entered. The value for SP will stop moving when
this value is reached.
SPH
Set Point High: Select from the highest input range value to SPL value. This will set
the maximum SP value that can be entered. The value for SP will stop moving when
this value is reached.
SPSt Set Point State: Select dir or rE.
dir
Direct Action. As the input increases the output will increase. Most com-
monly used in cooling processes.
rE
Reverse Action. As the input increases the output will decrease. Most
commonly used in heating processes.
SPOL Set Point Output Low Limit: Select 0 to 100% but not greater than SPOH. This item
limits the lowest output value. This is useful for adding a bias to the process when
needed.
SPOH Set Point Output High Limit: Select 0 to 100% but not less than SPOL. This item
allows setting the maximum output limit. This is useful with processes that are over-
powered.
SPLP Set Point Lamp: Select O on or OoFF.
O on
Lamp ON when Output is ON.
OoFF Lamp OFF when Output is ON.
ALARM TYPE AND ACTION (if present)
Caution: In any critical application where failure could cause expensive
product loss or endanger personal safety, a redundant limit controller is
required.
When setting an alarm value for an absolute alarm (ALt = AbS), simply set the value at
which the alarm is to occur.
When setting the alarm value for a deviation alarm (ALt = dE), set the difference in value
from the Set Point (SP) desired. For example, if a low alarm is required to be 5 degrees
below the SP, then set ALLo to -5. If a high alarm is required 20 degrees above the SP, then
set ALHi to +20. If SP is changed, the alarm will continue to hold the same relationship as
originally set.
The diagram at the top of the next page shows the action and reset functions for both
absolute and deviation alarms.
When Alarm Power Interrupt, ALPi, is programmed ON and Alarm Reset, ALrE, is
programmed for Hold, the alarm will automatically reset upon a power failure and
subsequent restoration if no alarm condition is present.
If Alarm Inhibit, ALiH, is selected ON, an alarm condition is suspended upon power up until
the process value passes through the alarm set point once. Alarm inhibit can be restored
as if a power up took place by pressing both the INDEX and ENTER keys for 5 seconds.
Warning: Resetting a high alarm inhibit will not cause an alarm to occur
if the Process Value does not first drop below the high alarm setting. Do
not use the Alarm Inhibit feature if a hazard is created by this action. Be
sure to test all combinations of high and low alarm inhibit actions before
placing control into operation.
