Appendices
Specifications
A
A-29
Totalizer Input Specifications
The following table provides a summary of the Totalizer Input specifications. The
Totalizer Input is located on the Output Module connector, terminals
Σ
and GND.
The totalizer is enabled or disabled by an input on a separate digital input, terminal
Σ
en. The voltage, isolation, threshold, and hysteresis specifications are the same
for the totalizer and enable inputs.
Table A-38. Totalizer Specification
Specification Characteristic
Maximum Input Voltage
30 V
Minimum Input Voltage
-4 V
Minimum Peak Voltage
2 V
Isolation
None (ac coupled)
Threshold 1.4
V
Hysteresis 500
mV
Input Debouncing
None or 1.75 ms (selectable)
Maximum Transition Rate
5 kHz (Debounce disabled)
500 Hz (Debounce enabled)
Maximum Count for Totalizer
4,294,967,295
Digital Relay Specifications
The next table provides a summary of the relay specifications for the 8 relay
contact pairs on the output card. Relay contacts are located on the Output Module
connector, two pairs of contacts per relay, on terminals KnA and KnB (where n is
the relay number).
Table A-39. DIGITAL I/O Relay Specification
Specification Characteristic
Maximum Contact Voltage
250 V ac
Minimum Peak Current
2 A at 30 V dc, 0.4 A at 125 V ac (resistive)
Isolation
1.5 kV between contacts and coil
Debounce time (typical)
5 ms
Contact Operate/release Rate
4 ms max
Fuse
2 A, 250 V, 5mm x 20mm, Fast Blow Fuse
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