Description
The TCS Series is a low cost method of go/no go current
detection. It includes a solid-state output to sink or source
current when connected directly to a standard PLC digital input
module. Its normally open or normally closed output can also be
used to control relays, lamps, valves, and small heaters rated up
to 1A steady, 10A inrush. The TCS is self-powered (no external
power required to operate the unit) and available with an
adjustable actuation range of 2 - 20A or factory fixed actuation
points from 2 - 45A.
Operation
Normally Open: When a current equal to or greater than the
actuate current is passed through the toroidal sensor, the output
closes. When the current is reduced to 95% of the actuate
current or less, the output opens.
Normally Closed: When the current through the toroid is equal
to or greater than the actuate current, the output opens. When
the current is reduced below 95% of the actuate current, the
output closes. To increase sensitivity, multiple turns may be
made through the TCS’s toroidal sensor. The trip point range is
divided by the number of turns through the toroidal sensor to
create a new range. When using an external CT, select a 2VA,
0-20A output CT rated for the current to be monitored. Select
TCS adjustment range 0. Pass one secondary wire lead through
the TCS’ toroid and connect the secondary leads together.

FEATURES BENEFITS
Self powered No control voltage is required to operate the unit
Totally solid state
and encapsulated
No moving parts to arc and wear out over time and
encapsulated to protect against shock, vibration,
and humidity
Can connect directly
to PLC
Solid state output to sink or source current can
be connected directly to a standard PLC digital
input module
1A steady, 10A inrush
solid-state output Provides 100 million operations in typical conditions
Complete isolation
between sensed current
and control circuit
Allows you to monitor a load in a separate
lectrical system