GE M60 UR Series, Instruction Manual

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GE Multilin M60 Motor Protection System 5-65
5 SETTINGS 5.2 PRODUCT SETUP
5
means a time source that is strictly compliant with PP, and PTP means a time source that is not strictly compliant with PP.
When a time source fails or recovers, the relay automatically transfers synchronization as required by this setting.
SCADA protocols, such as IEC 60870-5-103, IEC 60870-5-104, Modbus, and DNP, are low accuracy time synchronization
methods. If none of the higher accuracy methods (IRIG-B, PTP, SNTP) is active, the M60 updates its clock when one of the
SCADA time synchronizations is done.
The UR clock is updated by all sources active in the device, including IEC 60870-5-103. This means that whenever a time
synchronization message is received through any of the active protocols, the UR clock updates. However, given that IEC
60870-5-103, IEC 60870-5-104, Modbus, and DNP are low accuracy time synchronization methods, their impact is insignif-
icant when better accuracy time protocols, such as IRIG-B, PTP, and SNTP, are active in the system.
See the
COMMANDS

SET DATE AND TIME
menu section of this manual to manually set the RTC.
The
REAL TIME CLOCK EVENTS
setting allows changes to the date and/or time to be captured in the event record. The event
records the RTC time before the adjustment.
To enable IRIG-B synchronization, the input
IRIG-B SIGNAL TYPE
must be set to DC Shift or Amplitude Modulated. IRIG-B
synchronization can be disabled by making this setting None.
To configure and enable PTP and/or SNTP, or to set local time parameters (for example time zone, daylight savings), use
the following sections.
b) PRECISION TIME PROTOCOL (1588)
PATH: SETTINGS

PRODUCT SETUP

REAL TIME CLOCK

PRECISION TIME PROTOCOL (1588)
PATH: SETTINGS

PRODUCT SETUP

REAL TIME CLOCK

PRECISION TIME PROTOCOL (1588)

PTP PORT 1(3)
The UR supports the Precision Time Protocol (PTP) specified in IEEE Std 1588 2008 using the Power Profile (PP) specified
in IEEE Std C37.238 2011. This enables the relay to synchronize to the international time standard over an Ethernet net-
work that implements PP.
The relay can be configured to operate on some PTP networks that are not strictly PP. Time accuracy can be less than
specified for a PP network. Tolerated deviations from strict PP include 1) missing declaration of PP compliance in the mes-
sages, 2) connection to a network device that does not support the PTP peer delay mechanism, 3) jitter substantially
greater than 1 µs in received event messages, and 4) certain non-compliant announce and sync message update rates.
The relay implements PTP according to IEEE Std 1588 2008 and the equivalent IEC 61588:2009(E), sometimes
referred to as version 2 PTP. It does not support the previous version of the standard (version 1).

PRECISION TIME

PROTOCOL (1588)
STRICT POWER PROFILE:
Disabled
Range: Enabled, Disabled
MESSAGE
PTP DOMAIN NUMBER
0
Range: 0 to 255
MESSAGE
PTP VLAN PRIORITY
4
Range: 0 to 7
PTP VLAN ID
0
Range: 0 to 4095
MESSAGE
 PTP PORT 1

MESSAGE
PORT 1 PTP FUNCTION:
Disabled
Range: Enabled, Disabled
MESSAGE
PORT 1 PATH DELAY
ADDER:
00000 ns
Range: 0 to 60 000 ns in steps of 1
MESSAGE
PORT 1 PATH DELAY
ASYMMETRY:
0000 ns
Range: –1 000 to +1 000 ns in steps of 1
NOTE