Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 30)

Publication 900-UM007D-EN-E - January 2011
1-6 Bulletin 900 Input & Output Overview
Table 1.A — Surge Absorber Selection
• Always connect an AC load to the triac relay output. The output will not
turn OFF if a DC load is connected.
• Alarms — Alarms are supported on the Bulletin 900 temperature
controllers. You can configure the alarm type and alarm value, or Upper
and Lower-Limit alarms.
If necessary, a more comprehensive alarm function can be achieved by
configuring the Standby Sequence, Alarm Hysteresis, Close in
Alarm/Open in Alarm and Alarm Latch ON/OFF parameters.
When the input error output is configured to ON, Alarm Output 1
turns ON when an input error occurs.
• Control Adjustment — Optimum PID constants can be configured
easily by using the AT (Auto-Tuning) and ST (Self-Tuning) parameters.
• Event Input — When the optional event input unit is mounted, the
following functions can be achieved by event input:
Multiple set point selection (multi-SP max. 4 points), RUN/STOP
mode change switching between automatic and manual operation, and
starting/stopping the simple program. Refer to Table 1.C and 1.E.
• HBA and HS Alarms — The Heater Burnout Alarm (HBA) and
Heater Short Alarm (HSA) and heater overcurrent function is
supported by selecting the appropriate controller (900-TC8) or option
module (900-TC16). Refer to Table 1.B for the TC8 and Table 1.E for
the TC16.
• Communications Function — Personal computer (PC)
communicationsare supported when the option communications unit is
mounted on the temperature controller. Refer to Table 1.C and 1.E.
Note: The PC must have 900BuilderLite software installed.
Note: 900-TC protocol is an integrated general-purpose serial
communications protocol.
Note: Modbus is a communications control method conforming to the RTU.
Mode of Modicon Inc.'s Modbus Protocol.
Note: The 900-TC16 and 900-TC32 do not support the RS-232C interface.
Voltage Used Varistor Voltage Surge Resistance
100…120V AC 240…270V
1000 A minimum
200…240V AC 440…470V