Rockwell Automation T8448 Trusted TMR Zone Interface Module - 40 Channel - Manual (Page 38)

Trusted
TM
Module T8448
Issue 14 Apr 10 PD-T8448 38
6. Specifications
Common Features
System Supply Voltage Range 20 to 32Vdc
Circuit Type Fault tolerant, fully triplicated with optional line
monitoring
Number of Channels 40 Channels
Independent Power Groups 5 each of 8 channels
Power Consumption
System Supply (24V)
24W
Field Common Isolation
Sustained Working
Maximum Withstanding
±250V dc
±2.5kV dc
Output Mode
Operational Output/Field Voltage Range 18 to 32V dc
Output Voltage
Maximum Withstanding -1 to 40V dc
Output Current Rating (Continuous) 2A per channel
limited to 8A per power group
Minimum On State Load Current 50mA
Output Off State Resistance (effective leakage) 33kU
Maximum capacitance Pre release 3.5: 30-55uF
Release 3.5: at least 2800uF at 2A
Flashing/pulsing current loads Release 3.5 is recommended
Output On State resistance 0.6U
Output Short Circuit Protection Electronic (latching)
Channel to Channel Crosstalk >-40dB
Output Short Circuit Protection Automatic
Measurement Range 0 to 32V dc
Output Turn-on/off Delay 0.5ms
Input Mode
Input Impedance 33kU
Input Analogue Resolution 12 Bit
Input Analogue accuracy 0 to VFIELD-4V = 0.5% Full Scale (0.12V @ 24V
Full Scale).
VFIELD – 4V to VFIELD = 2% Full Scale (0.48V @
24V Full Scale).
(Build D38 may have up to +0.6V offset)
Sequence of events
Sample Update Time 0.5ms
Event Resolution 1ms
Self-Test Interval 2 minutes
Environmental
Operating Temperature -5 °C to 60°C (23°F to 140°F)
Non-operating Temperature -25 °C to 70°C (-13°F to 158°F)
Temperature change 0.5ºC/min
Operating Humidity 5 – 95% RH non-condensing
Environmental Specifications Refer to Document 552517
Mechanical
Dimensions
Height
Width
Depth
266mm (10.5ins)
31mm (1.2ins)
303mm (12ins)
Weight 1.3kg (2.7lbs)