Thermon TraceNet TCM 18 User Manual

Page 38

The ON/OFF mode may be used with either mechan-
ical relay or solid state relay heater current switching
relays. The SOFT START and PROPORTIONAL con-
trol methods are only used with the zero crossing solid
state current switching relay configurations as these
control modes pulse power during start-up, power
clamping, and also when employing a full proportional
control algorithm.

Press the PROG key at any point to exit from this se-
quence. If left in the program mode, the TCM18 will af-
ter a short wait automatically return to the scan mode.

PROG plus
HEATER
CURRENT

This display screen allows the programming of the
default power clamp percentage in the event of an RTD
fault for each of the eighteen circuits individually or
for all circuits (in the case the value is identical). The
setting range limits for this parameter is 20 to 100%.
Noting the location of the flashing cursor, press the UP
or DOWN keys to change the present settings. Press
the ENTER key to accept the new values.

Press the PROG key at any point to exit from this se-
quence. If left in the program mode, the TCM18 will af-
ter a short wait automatically return to the SCAN mode.

PROG plus
GROUND
CURRENT

This display screen allows the programming of the
ground/earth leakage current value at which to trigger
an alarm or trip event for each of the eighteen circuits
individually or for all circuits (in the case the value is
identical). The setting range limits for this parameter is
15 to 225 mA.

Press the PROG key at any point to exit for this se-
quence. If left in the program mode, the TCM18 will af-
ter a short wait automatically return to the SCAN mode.

PN 50316_0514