Troubleshooting guide

MAGNUM VERSION 8 MANUAL REVISION 3.1
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13. Magnum V8 Setpoints
# (Number) - From 1 to 230 (maximum number of Setpoints supported). Only active Setpoints will be displayed in
MCS-Connect and on the keypad display.
Name - The Setpoint’s name consists of up to 12 characters. The name is displayed following the number on the LCD
display. The Setpoint name can be changed to make it more meaningful to the current application, however the
function of the Setpoint will remain the same.
Value - The value or target of the Setpoint. With proper authorization this value can be changed, within limits that have
been established in MCS-Config.
Min - The minimum value that can be set. This field is not displayed and cannot be changed in MCS-Connect or in the
keypad display.
Max - The maximum value that can be set. This field is not displayed and cannot be changed in MCS-Connect or in
the keypad display.
Adjust Value - The interval that the value field can be changed by. This field is not displayed and cannot be changed
in MCS-Connect or in the keypad display.
‘Time (sec)’ – this field has two purposes: 1) In either a LOCKOUT or ALARM type; this is the length of time the
Setpoint must be true before it will trip. This time is always in seconds and it is displayed on the keypad display and
MCS-Connect if the Setpoint is either a LOCKOUT or ALARM type. This field can be changed in MCS-Connect and
through the keypad. 2) In a non-safety type Setpoint this field can be used as an extra timer. This will be specified in
the Setpoint definition if it is used.
Lockout Delay Hrs. – If a second safety occurs within this time, the unit or compressor will be locked out. This field is
not displayed and cannot be changed through MCS-Connect or in the keypad display.
Safety Down Time (min.) – After the first safety occurs the Magnum will wait this number of minutes before the unit or
associated compressor is allowed to run again.
Active or Non-Active – Only active Setpoints will be displayed in MCS-Connect or on the keypad display, but only if
the needed authorization level has been achieved.
Select Value: # decimals and print char – This indicates the number of decimal places and the unit character that
accompanies the value displayed. The number of decimal places is crucial when the Value, Minimum, and Maximum
data is entered in MCS-Config.
Level of Auth. To Display – This column indicates what authorization level a user must have in order to view the
Setpoint from MCS-Connect or the keypad display.
Comments – This column allows the user to add comments about the function of the Setpoint.
Sec. to ignore safety - If this value is not zero, at compressor startup this safety will be ignored for the time in this field.
Window to extend Safety ‘Time (sec)’ – If this value is not zero, at compressor startup the normal Safety Time will be
increased by the value in Safety Time Extension field for the time specified in this field.
Safety Time Extension (Sec) – This is the value that will be added to the Safety Time during the Window to extend
Safety Time period.
13.1. Setpoint Types
There are three different types of Setpoints. The Magnum software determines if a Setpoint contains a
target value or is a safety. If it is a safety then its type determines what action the Magnum will take when
the safety occurs (either locking out the unit or generating an alarm only).
SETPOINT 13.1.1.
This type of Setpoint contains a target or provides information for some action. The time element in this
type can be used for an additional counter if specified. This time is displayed and can be changed through
MCS-Connect, MCS-Config or from the keypad display.
LOCKOUT 13.1.2.
This type of Setpoint contains a safety value and the time that the safety must be violated before the
safety will trip. Once a safety has tripped the Magnum will take the appropriate action, shutting down the