Thermon TraceNet TCM 18 - Manual (Page 29)

The third parameter line on this display screen indi-
cates the amount of time delay (up to 30 minutes)
that has been programmed in for a High Temperature
Trip event. A value other than “0” for this parameter
indicates the operator has chosen to provide a buffer
to avoid tripping the heat tracing circuit for a short term
higher temperature exposure /operating event.
Note that these CONFIG settings are always global set-
tings for all eighteen circuits on this controller.
CONFIG 3 The parameter line on this display screen indicates the
programmed time period in hours between automatic
heat tracing self test events. The automatic self test
turns each heat trace circuit on and then off to deter-
mine that there is a current reading difference. The
presence of a differential is an indication that the relay
is functional and that the circuit breaker has not been
tripped. Alternatively the parameter line may indicate
that the self test function is “OFF”.
CONFIG 4 The first parameter line on this display screen indicates
the amount of startup delay in minutes for this TCM18
module. This parameter indicates whether the TCM18
has a built in delay to “stagger-start” power within a
group of TCM18 modules.
The second parameter line on this display screen
indicates the length of time allowed for each heat
tracing circuit to ramp up to full power during soft start
control with power clamping or when in proportional
control modes.
Note that these CONFIG settings are always global set-
tings for all eighteen circuits on this controller.
CONFIG 5 The first parameter line on this display screen indicates
the first circuit number to be designated for this TCM18.
The TCM18 allows the first circuit number to be pro-
grammed from 1 to 82. This is useful where multiple
TCM18 controllers are present in a common panel.
25 PN 50316_0514