23
DCM
FEATURES
• Operates in a wide range of ambient conditions
• Single or dual pole solid state switching
• Nickel plated terminal construction
•
Black anodized aluminum heat sink capable of dissipating the
heat generated for up to a total of 180 Amps continuous
• Includes a ground/earth leakage circuit test loop which allows
the operator to conduct a functionality test on each circuit
• The DCM module has the following control modes:
1. On-Off
2. On-Off with Soft-Start (solid state relays only)
3. Proportional (solid state relays only)
4. Ambient Proportional (solid state relays only)
5. Ambient Proportional - Mechanical
• Activates test functions including:
1. Ground/Earth Leakage Fault Circuit Test
2. Loss of Heater Current Test
• Activates programmed control function based on the
temperature values provided by up to 20 RTD's per circuit
• Monitors ground/earth leakage and heater operating current
in heat tracing circuits
DCM
COMPONENT SPECIFICATIONS
Circuit control capacity ......................
up to six heat trace circuits
Storage ambient temp. range
.......
-40°C (-40°F) to 105
o
C (221
o
F)
Operating ambient temp. range
...
-40°C (-40°F) to 100°C (212°F)
Power terminal connections
1
0.5 to 10 mm
2
(20 to 6 AWG), 630 Vac
Printed circuit board
.........................................
conformal coated
Heat sink
..................................................................
Type 4X, IP66
1. DIN-rail mounted terminal blocks for line voltage to be off PC board.
DCM
(DISTRIBUTED CONTROL MODULE)
The DCM serves as the power switching module, using solid state
relays for a TraceNet
TM
network of heat tracing control modules.
DCM
DIMENSIONAL DATA
DCM
CONNECTION DIAGRAM
Ground/Earth
Leakage Current
Transformer
Operating Heater
Current Transformer
Power and
Communication Buses
Solid State Relays
(Under Terminal Block)
Output AC Voltage
to Heater
Heat Sink
41 mm
(1-5/8")
483 mm
(19")
152 mm
(6")
267 mm
(10-1/2")
TRACENET
TM
GENESIS
CONTROL AND MONITORING SYSTEM
4
THERMON.COM
