Eaton Power Xpert PXM 4000, User And Installation Manual

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Page 250
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E Option Cards
IO1 - 8 Discrete Inputs to external dry contacts
• IO11-IO18 ~ 10mA sink input
• IO19 – 24V internal source for all inputs
IO2 – 2 Solid State relays – external source and load limited to 30VDC and 100mA.
• IO21-I/O22 Solid State Output 1 (logic also tied to S1 LED )
• IO23-I/O24 Solid State Output 2
IO3 – 3 Electro mechanical Relays rated for 240VAC/30VDC @ 5Amps
• IO31 R1A - Form A contact Relay1
• IO32 R1C - Common Relay 1
• IO33 R1B - Form B contact Relay 1
• IO34 R2A - Form A contact Relay2
• IO35 R2C - Common Relay 2
• IO36 R2B - Form B contact Relay 2
• IO37 R3A - Form A contact Relay 3
• IO38 R3C - Common Relay 3
• IO39 R3B - Form B contact Relay 3
E.3. 1ms Time Stamping of Digital and Sub-Cycle Disturbance Events
The Power Xpert Meter is capable of time stamping digital and sub-cycle disturbance
events to /- 1ms of the time of occurrence. The ability to time stamp digital input
events and sub-cycle events with +/- 1ms accuracy can be invaluable when reconstructing
the sequence of events in a forensic event analysis. In order to a/- 1ms accuracy,
the Power Xpert meter must be configured for one of two optional time sources.
E.4. NTP Time Server
Eaton offers the following time servers:
• Power Xpert 100 Network Time Server (PX100NTSA) and the
• Power Xpert 200 Network Time Server (PX200NTSA NTP)
depending on the application requirements. The Power Xpert Meter must be equipped
with a Communications Expansion card in order to interface to the NTP Time Server.
Eaton recommends that the NTP time server be installed on the same network drop as
the Power Xpert Meters in order to optimize the accuracy of the meter time stamps for
+/-1ms accuracy. The Power Xpert Meter should be configured for NTP as the clock
source and the NTP server IP address must be configured in the communications setup
page. Eaton recommends the use of an NTP server to synch the Power Xpert Meter for 1
ms time stamping applications to minimize wiring and installation costs.