Manual 37143A
MFR 15 - Protection Relay & Control
Page 6/119
© Woodward
Illustrations and Tables
Illustrations
Figure 3-1: Wiring diagram up to version 1.9xx / 2.0xx.......................................................................................................... 11
Figure 3-2: Wiring diagram from version 3.0xx / 3.1xx .......................................................................................................... 12
Figure 3-3: Power supply......................................................................................................................................................... 13
Figure 3-4: Wide range power supply...................................................................................................................................... 13
Figure 3-5: Measuring inputs - voltage.................................................................................................................................... 14
Figure 3-6: Measuring inputs - synchronizing voltage ............................................................................................................ 14
Figure 3-7: Measuring inputs - current .................................................................................................................................... 15
Figure 3-8: Discrete inputs....................................................................................................................................................... 16
Figure 3-9: Relay outputs ........................................................................................................................................................ 17
Figure 3-10: Pulse output......................................................................................................................................................... 17
Figure 3-11: Analog outputs .................................................................................................................................................... 18
Figure 3-12: Interfaces............................................................................................................................................................. 20
Figure 3-13: Interface - CAN bus shielding............................................................................................................................. 20
Figure 3-14: Interfaces - CAN bus topology............................................................................................................................ 21
Figure 4-1: 'Direction of power................................................................................................................................................ 28
Figure 5-1: Front panel ............................................................................................................................................................ 32
Figure 6-1: Diagram for independent time-overcurrent monitoring ........................................................................................ 70
Figure 7-1: Dimensions............................................................................................................................................................ 93
Figure 7-2: Interface, cosphi scaling...................................................................................................................................... 101
Figure 7–3: Interface - Modbus connection ........................................................................................................................... 103
Figure 7-4: Interface, Profibus DP slave................................................................................................................................ 105
Tables
Table 3-1: Conversion chart - wire size ................................................................................................................................... 13
Table 3-2: Maximum CAN bus length..................................................................................................................................... 21
Table 4-1: Operating modes - functional table ........................................................................................................................ 26
Table 4-2: Operating mode conditions..................................................................................................................................... 26
Table 4-3: Alarms .................................................................................................................................................................... 31
Table 5-1: Alarms .................................................................................................................................................................... 36
Table 6-1: Release delay of the relays ..................................................................................................................................... 82
Table 6-2: Protective device output to relay ............................................................................................................................ 84
Table 6-3: Analog outputs, table of values .............................................................................................................................. 86
Table 7-1: Analog outputs, table of values ............................................................................................................................ 113