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Bulletin 900-TC
Single-Loop Temperature/Process Controller
14
Specifications, Continued
Bulletins 900-TC8, 900-TC16, and 900-TC32, Continued
Current Transformer (Sold Separately) Ratings (Use with Bulletins 900-TC8 and 900-TC16 Only)
Dielectric Strength 1000V AC (1 min.)
Vibration Resistance 50 Hz 98 m/s
2
(10 G)
Weight (includes carton)
900-CT1 Approx. 19 g (0.67 ounces)
900-CT2 Approx. 65 g (2.3 ounces)
Heater Burnout and Heater Short-Circuit Failure Alarm (Use with Bulletins 900-TC8 and 900-TC16 Only—Current Transformer Required)
Max. Heater Current Single-Phase AC 50 A
Input Current Readout Accuracy ±5%FS ±1 digit max.
Alarm Setting Range 0.1…49.9 A (0.1 A units) ‡
Min. Detection ON Time 100 ms §
Approved Standards
Standards
NEMA/EEMAC ICS 2 (Industrial Controls and Systems)
UL 61010-1, CSA C22.2 No. 1010.1
§ When the heater ON/OFF time is less than 100 ms, heater current cannot be measured and the heater burnout alarm (ON) or SSR failure alarm (OFF) will not activate.
Applicable OS Windows 2000, XP or Vista
Applicable Configuration Software 900BuilderLite
Applicable Models 900-TC8 and 900-TC16
USB Interface Standard Conforms to USB Specification 1.1
Power Supply Voltage 5V DC
Current Consumption 70 mA
Ambient Operating Temperature 0...55°C (with no condensation or icing)
Ambient Operating Humidity 10%...80%
Storage Temperature -20...-60°C (with no condensation or icing)
Storage Humidity 10%...80%
Transmission Path Connection RS485 Multiple points
Communications Method
9
900-TC8 RS-232C or RS-485 (2-wire, half duplex)
900-TC16 RS-485 (2-wire, half duplex)
900-TC32 RS-485 (2-wire, half duplex)
Synchronization Method Start-stop synchronization
Protocol 900TC or Modbus RTU Slave
Baud Rate 7
1200/2400/4800/9600/19 200, 38400 bps, 57600 (900-TC8 and -TC16)
Data Bit Length 7
7 or 8 bits
Stop Bit Length 7
1 or 2 bits
Error Detection Vertical Parity (None, even, odd) BCC or with ModBus CRC-16
Flow Control Not available
Interface
900-TC8
9
RS-485/RS-232C
900-TC16
9
RS-485
900-TC32
9
RS-485
Retry Function Not available
Communications Response Wait Time 0...90 ms (Default: 20 ms)
Communications Buffer 900-TC8 and TC-16, 217 bytes
9 RS-232C communications is only supported for Bulletin 900-TC8 (Cat. No. 900-TC8232 option board installed). All controllers support RS-485 communications
(32 linked/networked devices) by appropriate option unit or correct controller catalog number.
7 The baud rate, data bit length, stop bit length, or vertical parity can be individually set using the communications configuration function group.
Communications
Power Supply Bus Power (Supplied from USB host controller)
DTE Speed 38400 bps
Connector Specifications
Computer: USB (type A plug)
Temperature Controller : 3-pin Serial
Altitude 2000 m max.
Weight Approx. 100 g
USB-Serial Cable (900-CPOEM1)
Note: A USB driver (available for free from Allen-Bradley) must be installed in the personal computer before the cable can be used.
♣ B, R, and S series: 0.2°C/Ohm max. (100 Ohm max.)
‡ When the configured value of the alarm is 00 A, the alarm will always be OFF for heater burnout and ON for SSR failure. When the configured value is 50.0 A,
the heater burnout alarm will always be ON and the SSR failure will be OFF.
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