West Control Solutions N6600 - Manual (Page 31)

If Heater Break Alarm Strategy = Percentage Mode: 0 - 100% of
Heater Nominal Current (0 = OFF - value display blank, Low Heater
Alarm forced inactive). Default value = 20% below heater nominal
current. Hysteresis is half the Low Heater Break Alarm value.
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.
3.2.32 High Heater Break Alarm Value
The Controller monitors two current values: ON-current (when Output 1 is on) and
OFF-current (when Output 1 is off). This parameter defines a heater ON-current
value above which the High Heater Break Alarm will become active. It may be
adjusted in the following ranges above the heater current nominal value:
If Heater Break Alarm Strategy = Percentage Mode: 0 - 100% of
Heater Nominal Current (0 = OFF - value display blank, High Heater
Alarm forced inactive). Default value is 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 effective 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 Alarm forced
inactive. Default value = 0 (OFF). Hysteresis is 0.5A for 0.1A resolution
and 2A for 1A resolution.
3.2.33 Short Circuit Heater Break Alarm Enable/Disable
This parameter enables/disables the Short Circuit Heater break Alarm (1
=enabled, 0 = disabled). The default setting is 1 (enabled). The Controller
monitors two current values: ON-current (when Output 1 is on) and OFF-current
(when Output 1 is off). The Short Circuit Heater Break Alarm becomes active if the
heater OFF-current exceeds 5% of Heater Current High Scale Limit. NOTE: This
parameter is not available if Heater Break Input Type is configured to be SCRi.
3.2.34 Soft Start Setpoint
The use and operation of Soft Start are described in Subsection 2.4. The value of
this parameter is adjustable (between Input Range Maximum and Input Range
Minimum) in Set Up Mode only and is in force for the duration of the Soft Start.
O075-3 3-15
PM-0075