Specifications, Trusted, Module t8444 – Rockwell Automation T8444 Trusted TMR Pulse Generator and Monitoring Module User Manual
Page 44

Trusted
TM
Module T8444
Issue 09 Apr 10
PD-T8444
44
7. Specifications
System Supply Voltage
20-32Vdc
Circuit Type
Fault tolerant, fully triplicated with optional
line monitoring
Number of Channels
40 Channels
Independent Power Groups
5 each of 8 outputs
Operational Output/Field Voltage Range
18 to 60V dc
Output Voltage
Measurement Range
0 to 60V dc
Maximum Withstanding
-1 to 60V dc
Output Current Rating (Continuous)
0.75A per channel
limited to 6A per power group
Minimum On State Load Current
25mA
Output Off State Resistance (effective
leakage)
33kL
Maximum capacitance
Pre release 3.5: 30-55uF
Release 3.5: at least 2800uF
Output On State resistance
0.6L
Output Short Circuit Protection
Electronic (latching)
Channel to Channel Crosstalk
>-40dB
Output Short Circuit Protection
Automatic
Input Measurement Range
-20 to +28V Limited by A/D range.
Input Impedance
50K ohms
Power Consumption
Field Supply (1A per channel)
System Supply (24V)
24W Dissipated in field device
22W Dissipated in the module
Field Common Isolation
Sustained Working
Maximum Withstanding
±250V dc
±2.5kV dc
Output Turn-on/off Delay
1.0ms
Sample Update Time
1.0ms
Sequence of Events
Event Resolution
1ms
Self-Test Interval
2 minutes
Intrinsic Safety
External barrier
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
Dimensions
Height
Width
Depth
266mm (10.5ins)
31mm (1.2ins)
303mm (12ins)
Weight
1.285kg (2.8lbs)