Woodward 505HT, Инструкция по установке и эксплуатации

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Manual 35116 505HT for Pelton Turbines
Woodward 39
CAN wiring checks
•
Verify the CAN wiring uses a high quality, 3-wire, shielded communication cable. For example,
Woodward 2008-1512 (Belden YR58684) or equivalent low capacitance, shielded communications
wire.
•
Verify CAN network length is < max length spec for the baud rate being used
•
Verify network is terminated properly at both ends with 120 _, ±10%
•
Verify the CAN wiring uses the signal common (CAN_GND)
•
Verify CAN drop cables to each device are as short as possible and meets spec.
•
Verify CANH is not connected to PS(+), PS(–), EARTH
•
Verify CANL is not connected to PS(+), PS(–), EARTH
•
Verify CAN_COM is not connected to PS(+), PS(–), EARTH
•
Verify CAN_SHLD shield wire is not shorted to PS(+), PS(–)
•
Verify the CAN overall cable shield is terminated to EARTH at only (1) location for each network.
•
For redundant CAN devices, verify CAN1 and CAN2 networks are not miswired and connected
together.
AI (non-loop), Analog Input wiring checks
•
Verify that external XDCR's are NOT used with these self-powered channels.
•
Verify each AI(+,–) is not shorted to another input channel.
•
Verify each AI(+) terminal is not shorted to PS(+), PS(–), EARTH.
•
Verify each AI(–) terminal is not shorted to PS(+), PS(–), EARTH.
•
Verify each AI shield wire is not shorted to PS(+), PS(–).
•
Verify each AI shield wire is terminated at the node properly.
•
Functionally verify the wiring for each AI channel using a simulator source.
AI (Loop power), Analog Input wiring checks
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Verify that external XDCR's are connected to these channels.
•
Verify the LPWR voltage level (+24 V dc) is correct for the XDCR.
•
Verify each LPWR(+) terminal is wired to the XDCR POWER(+).
•
Verify each LPWR(+) terminal is not shorted to PS(+), PS(–), EARTH.
•
Verify each AI(–) terminal is not shorted to PS(+), PS(–), EARTH.
•
Verify each AI shield wire is not shorted to PS(+), PS(–).
•
Verify each AI shield wire is terminated at the node properly.
•
Verify that all XDCR's channels use less than 250 mA of LPWR.
•
Functionally verify the wiring for each AI channel using a simulator source.
AO, Analog Output wiring checks
•
Verify each AO(+,–) is not shorted to another output channel.
•
Verify each AO(+,–) is not shorted to another Analog Input channel.
•
Verify each AO(+) terminal is not shorted to PS(+), PS(–), EARTH.
•
Verify each AO(–) terminal is not shorted to PS(+), PS(–), EARTH.
•
Verify each AO shield wire is not shorted to PS(+), PS(–).
•
Verify each AO shield wire is terminated at the node properly.
•
Functionally verify the wiring for each AOUT by driving 4 mA and 20 mA to the load from the GAP
application. Verify correct output current with a meter. Verify the correct SRC_RDBK & RET_RDBK
values in GAP.
DI, Discrete Input wiring checks
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Verify each DI(+) is not shorted to another input.
•
Verify each DI(+) is not shorted to CPWR(+), CPWR(–), PS(+), PS(–), EARTH.
•
Verify each DI(+) wiring is functional by setting each input HIGH (>16 VDC) and then LOW (<8 V DC).
Verify GAP software detects the state change.
•
When possible, consider using a shielded DIN cable.
Released