West Control Solutions N6600 - Manual (Page 51)

4.4.6.6 HIGH HEATER BREAK ALARM VALUE - Word Parameter 32
This word parameter defines a heater current value above which the High Heater
Break Alarm will become active. It may be adjusted in the following ranges above
the Heater Nominal Current:
If Heater Break Alarm Strategy = Percentage Mode:
0 - 100% of
Heater Nominal Current (0 = OFF - value display blank, High Heater
Break Alarm forced inactive). Default value = 0 (OFF). Hysteresis is
half the High Heater Break Alarm value.
NOTE: Unless the High Heater Break Alarm is set OFF, if the heater current
exceeds the Heater Current High Scale Limit, the High Heater Break Alarm
will be forced active, even if the High Heater Break Alarm level is set higher
than the Heater Current High Scale Limit.
If Heater Break Alarm Strategy = Absolute Mode:
0.1A/1A
(dependent upon display resolution) - Heater Current High Scale
Limit and 0 (OFF) - value display blank, High Heater Break Alarm
forced inactive. Default value = 0 (OFF). Hysteresis is 0.5A for 0.1A
resolution and 2A for 1A resolution.
4.4.7 Tuning Parameters
4.4.7.1 RATE (DERIVATIVE TIME CONSTANT) - Word Parameter 9
This word parameter may be modified/interrogated. It defines the derivative time
constant for the control algorithm. The decimal point is used as the separator
between the minutes and seconds digits (i.e. set to 2 decimal places); the
decimal point position must be as described, otherwise modification will not
occur.
4.4.7.2 RESET (INTEGRAL TIME CONSTANT) - Word Parameter 8
This word parameter may be modified/interrogated. The {DATA} element is in a
format in which the first two digits represent minutes and the second two digits
represent seconds. The decimal point position complies with this format and the
decimal point is used as a separator between the minutes digits and the seconds
digits. The decimal point must be in the correct position for modification to occur.
4.4.7.3 MANUAL RESET (BIAS) - Word Parameter 15
This word parameter may be modified/interrogated. The decimal point position is
as for the input range.
O075-4 4-15
PM-0075