
Logic/SSR Connections (T48 only)
Logic/SSR Drive Output:
Rating:
45 mA @ 4 V min., 7 V nominal (current limited)
Triac Connections (T48 only)
Triac Outputs
:
Type
: Isolated, Zero Crossing Detection
Rating
:
Voltage
: 120/240 VAC
Max. Load Current
: 1 Amp @ 35°C
0.75 Amp @ 50°C
Min Load Current
: 10 mA
Offstate Leakage Current
: 7 mA max. @ 60 Hz
Operating Frequency
: 20 to 500 Hz
Protection
: Internal transient snubber
HEATER CURRENT MONITOR WIRING (T48 ONLY)
Models with the Heater Current Monitor option have two input terminals to
receive the output directly from a 100 mA current transformer.
Caution: Never connect a current transformer with a rating other than 100 mA.
These terminals are labeled #13 and #14 “2nd Input Option”. There is no
polarity observation for these inputs.This input is only for single phase heaters.
REMOTE SETPOINT WIRING
Models with the Remote Setpoint option have two input terminals to
receive a 0 to 20 mA signal. Connect the Remote Setpoint signal to terminals
labeled #13 (+) and #14 (-), “2nd Input Option”. The common of this input is
isolated from input common, but is not isolated from the Linear DC output
commons. For proper operation, keep this common isolated from all other
controller commons.
MAIN LINEAR DC OUTPUT WIRING
Models with the Linear DC output option provide either a linear 10 V or a
linear 20 mA signal. The output range is selected by jumpers on the output
board. (See Linear DC Analog Output Jumper Selection, page 12). The
terminals are #1 (-) and #2 (+). The common of this output is isolated from
input common, but is not isolated from other commons. For proper operation,
keep this common isolated from all other controller commons.
SECOND LINEAR DC OUTPUT WIRING
Models with the Second Linear DC output option provide a conditioned
and scaled retransmitted signal output. The terminals are #13 (+) and #14 (-).
The common of this output is isolated from the input common, but not from
the other commons. For proper operation, keep this common isolated from all
other controller commons.
USER INPUT WIRING
The use of shielded cable is recommended. Follow the EMC installation
guidelines for shield connection.
Terminal #6 is the User Input, which is programmable for a variety of
functions. Any form of mechanical switch may be connected to terminal #6
(USER INPUT) and terminal #8 (COMM.). Sinking open collector logic with
less than 0.7 V saturation and off-state leakage current of less than 1
µ
A may
also be used.
-7-
Figure 8, Logic/SSR Output
Figure 9, Triac Output