West Control Solutions N6600 - Manual (Page 65)

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, Low Heater Alarm forced
inactive. Default value = 0 (OFF). Hysteresis is 0.5A for 0.1A resolution
and 2A for 1A resolution.
5.3.6.6 HIGH HEATER BREAK ALARM VALUE {P} = f
This parameter, which may be modified/interrogated using a Type 2 message or a
Type 3/4 message sequence, 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.
5.3.7 Tuning Parameters
5.3.7.1 RATE (DERIVATIVE TIME CONSTANT) {P} = D
This parameter may be modified/interrogated using a Type 2 message or a Type
3/4 message sequence. It defines the derivative time constant for the control
algorithm. 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 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.
5.3.7.2 RESET (INTEGRAL TIME CONSTANT) {P} = I
This parameter may be modified/interrogated using a Type 2 message or a Type
3/4 message sequence. 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.
O075-5 5-13
PM-0075