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NR Electric PCS-9785 Instruction Manual

Satellite-synchronized clock
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PCS-9785
Satellite-Synchronized Clock
Instruction Manual
NR Electric Co., Ltd.

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  • Page 1 PCS-9785 Satellite-Synchronized Clock Instruction Manual NR Electric Co., Ltd.
  • Page 3 Are trained in the care and use of safety apparatus in accordance with safety engineering  practices; Are trained in emergency procedures (first aid).  Instructions and Warnings The following indicators and standard definitions are used: PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 4 DC circuit just after switching off the DC power supply. CAUTION!  Earthing Securely earth the device earthing terminal.  Operating environment ONLY use the device within the range of ambient environment and in an environment free of abnormal vibration. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 5 Operation Theory Comprehensive and detailed functional description. Supervision Automatic self-supervision function of device. Hardware Description of plug-in modules and definition of pins. Settings Setting lists including system settings, communication settings and etc. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 6 The information in this manual is carefully checked periodically, and necessary corrections will be included in future editions. If nevertheless any errors are detected, suggestions for correction or improvement are greatly appreciated. We reserve the rights to make technical improvements without notice. NR ELECTRIC CO., LTD. Tel: +86-25-87178888 Headquarters: 69, Suyuan Avenue, Jiangning, Nanjing 211102, China...
  • Page 7 1 Introduction 1 Introduction Table of Contents 1 Introduction ..................1-a 1.1 Overview ......................1-1 1.2 Features ......................1-1 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 8 1 Introduction PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 9 IEDs. Two kinds of PCS-9785 can be adopted to build a higher reliable and accuracy clock synchronization system in substation. The source clock can receive timing signals from its own GPS/BDS antenna (Master Mode), while the extension clock receives IRIG-B signals from another clock source (Slave Mode).
  • Page 10 Double devices redundancy strategy  With a interconnection in using of IRIG-B signal, a set of two PCS-9785 can form the "dual device dual network" redundancy strategy to provide a higher reliable and accuracy clock synchronization system.

  • Page 11: Table Of Contents

    2.5.2.4 AC Modulation ............................2-3 2.5.2.5 Optical Port ..............................2-3 2.6 Type Test ......................2-4 2.6.1 Environmental Test ....................... 2-4 2.6.2 Mechanical Test ........................2-4 2.6.3 Insulation Test........................2-4 2.6.4 Electromagnetic Compatibility ....................2-4 2.7 Clock Synchronization Specifications ............2-5 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 12 2.7.4 Serial Port Timing Message ....................2-5 2.7.5 Network ..........................2-6 2.7.6 GPS Receiver ........................2-6 2.7.7 BDS Receiver ........................2-6 2.7.8 Time Frequency Measurement .................... 2-6 2.7.9 Internal Clock ........................2-6 2.8 Certifications ....................2-6 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 13: Technical Data

    Rear panel of the device Device structure Plug-in modular type @ rear side, integrated front plate Protection class Standard IEC 60255-1:2009 HMI side IP51 Terminal side IP30 Other sides IP50 2.3 Ambient Temperature and Humidity Range Standard IEC 60255-1:2009 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 14: Communication Port

    1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps, Baud rate 115200bps Protocol IEC 60870-5-103:1997 Maximal capacity Transmission distance Max. 500m Safety level Isolation to ELV level Twisted pair Screened twisted pair cable 2.5.1.2 Optical Port Characteristic Glass optical fiber PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 15: Output

    Impedance 600Ω Transmission distance Max. 2000m Safety level Isolation to ELV level 2.5.2.5 Optical Port Characteristic Glass optical fiber Connector type Fibre type Multi-mode (62.5/125μm) Wave length 850nm Receiving power Min. -25.0dBm Margin Min +3.0dB PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 16: Type Test

    Power supply, AC input, I/O port: 1.2/50μs Surge immunity test Common mode: ±4kV Differential mode: ±2kV IEC 61000-4-8:2009, Class V Power frequency magnetic field immunity 100A/m for 1min, 1000A/m for 3s Pulse magnetic field immunity IEC 61000-4-9:2001, Class V PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 17: Clock Synchronization Specifications

    0~10V (phase-phase), continuously adjustable Modulation ratio Accuracy Max. 15μs Time code format B120 (According to IEEE 1344:1995, add "Year" between P50~P58). 2.7.4 Serial Port Timing Message 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps, Baudrate 115200bps PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 18 Acquisition time (max.) TTFF-cold Reacquisition Accuracy Max. 50ns 2.7.8 Time Frequency Measurement Rated voltage 220Vac (grid voltage) Operating range 45.000Hz~55.000Hz Accuracy 0.001Hz Sampling period 2.7.9 Internal Clock Inaccuracy Max. 3×10 (1μs/h) 2.8 Certifications ISO9001:2008  ISO14001:2004  PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 19 2 Technical Data OHSAS18001:2007  ISO10012:2003  CMMI L5  EMC: 2014/30/EU, EN60255-26:2013  LVD: 2014/35/EU, EN60255-27:2014  PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 20 2 Technical Data PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 21 3.1.2 Time Service Function ......................3-1 3.1.3 Output Function ........................3-2 3.2 Double Devices Redundancy Strategy ............3-2 3.3 PRP/HSR ......................3-2 3.3.1 Parallel Redundancy Protocol (PRP) ................3-2 3.3.2 High-availability Seamless Redundancy (HSR) .............. 3-4 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 22 3 Operation Theory PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 23: Operation Theory

    CLK module and COM module are integrated. For software, reception function, time service function and output function are integrated. The PCS-9785 receives standardized time signals, such as BDS, GPS, IRIG-B, via its built-in receiver. After a decode, it converts the source time into IRIG-B, PPS, PPM, PPH signals or timing message, and sends them via various output interfaces.

  • Page 24: Output Function

    PRP nodes send two copies of the same packet via PRP network, two copies of the same packet are transmitted via dual switch networks, and receiving nodes make a redundant handling at the data link layer to realize redundant message receiving. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 25 When receiving frames from the network, the LRE forwards the first received frame of a pair to its node’s upper layers and discards the duplicate frame (if it arrives). It removes the RCT if required. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 26: High-Availability Seamless Redundancy (Hsr)

    If the message is from other node, receiving node will transmit it from another port after receiving the message, i.e., receiving message from Port A and transmitting message from Port B. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 27 4 Supervision 4 Supervision Table of Contents 4.1 Supervision Alarms ..................4-1 List of Tables Table 4.1-1 Alarm description ....................4-1 Table 4.1-2 Troubleshooting ......................4-2 PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...
  • Page 28 4 Supervision PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...

  • Page 29: Supervision

    All the alarm signals and the corresponding handling suggestions are listed below. NOTICE! ONLY the master mode PCS-9785 clock source is equipped with a large scale LCD and the MON module for SAS communication. Thus the following alarms can be viewed locally from device LCD or remotely from SCADA.

  • Page 30: Table 4.1-2 Troubleshooting

    Check the IDs of all the clocks who are on the same PTP network. PTP1.Alm_Conflict_ID_Clk PTP1: the network connected to the second optical port from the bottom of the MON module PTP2.Alm_Conflict_ID_Clk PTP2: the network connected to the last optical port of the MON module PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...

  • Page 31: Table Of Contents

    Table 5.6-2 Output polarity mode of NR1205A ................5-10 Table 5.6-3 Output signal mode of NR1205A ................5-10 Table 5.6-4 Pin definition of NR1216A ..................5-11 Table 5.6-5 Output signal mode of NR1216A ................5-12 PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...
  • Page 32 Figure 5.6-5 COM Module (NR1218A) ..................5-14 Figure 5.6-6 Serial port wiring of NR1218A ................5-14 Figure 5.6-7 COM Module (NR1219A) ..................5-16 Figure 5.6-8 COM Module (NR1220A) ..................5-18 Figure 5.7-1 PWR module ......................5-19 PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 33: Hardware

    BO _CO M2 BO _FAIL BO _FAIL BO _ALM BO _ALM O PTO+ O PTO+ O PTO- O PTO- PWR + PWR + PWR - PWR - G ND G ND Figure 5.2-1 Terminal view example PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 34: Hmi Module (Human-Machine Interface)

    The contained ARM processor works for display controlling of LCD, keypad processing, and exchanging data with the MON module. The LCD screen is a high-performance grand liquid crystal panel with back lighting, which has a user-friendly interface and an extensive display range. PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 35: Mon Module (Monitoring & Communication)

    5.4 MON Module (Monitoring & Communication) NOTICE! ONLY the master mode PCS-9785 clock source is equipped with the MON module. The MON module consists of high-performance built-in processor, FLASH, SRAM, SDRAM, Ethernet controller and other peripherals. Its functions include management of the complete device, human machine interface, communication, etc.

  • Page 36: Clk Module (Satellite Signal Receiver)

    COM modules via the internal bus. 5.5.1 NR1145 for Clock Source Table 5.5-1 Sub models of NR1145 Sub models NR1145A NR1145B NR1145C NR1145D NR1145I NR1145J NR1145K Timing signal input channel IRIG-B RS-485 Time Freq. Measurement PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 37: Figure 5.5-1 Clk Module

    IRIG-B IRIG-B SYN1+ SYN1- SGND1 SYN2+ SYN2- SGND2 NR1145I NR1145K IRIG-B IRIG-B IRIG-B IRIG-B FGND Figure 5.5-1 CLK module CAUTION! Do NOT look into the end of an optical fiber connected to an optical port. PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 38: Nr1141 For Clock Extension

    The CLK module NR1145 receives and processes satellite signal and external IRIG-B code. It converts them into PPS/PPM/PPH, IRIG-B code and timing message and transmits them to the MON module and COM modules via the internal bus. PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 39: Figure 5.5-3 Clk Module

    "FGND" for all the communication ports, it is suggested to connect the foiled layer of the cable when connecting multiple devices in series. The foiled layer connection of the cable shall be grounded at only one end. PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 40: Com Module

    The correct serial port wiring is shown in the following figure. Generally, a foiled cable with at least two pairs of twisted pairs shall be applied. One pair of the twisted pairs are respectively used to connect the transmission and reception terminals. The other pair of twisted pairs is used to PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 41: Figure 5.6-2 Serial Port Wiring Of Nr1205A

    RS-485: A Serial port 7 RS-485: B 7 SGND Signal reference 7 FGND Foiled layer The output polarity mode and the output signal mode can be selected by setting the corresponding jumpers on the module. PCS-9785 Satellite-Synchronized Clock Date: 2014-10-15...

  • Page 42: Optical-Coupled Contact (Nr1216A)

    Set "ON" to connect a 120Ω match resistance in parallel. 5.6.2 Optical-Coupled Contact (NR1216A) The COM module NR1216A provides 8 optical-coupled contacts. The No.1~4 contacts form the group 1 and the No.5~8 form the group 2. PCS-9785 Satellite-Synchronized Clock 5-10 Date: 2014-10-15...

  • Page 43: Figure 5.6-3 Com Module (Nr1216A)

    The positive pole of the No.7 output contact OUT7- The negative pole of the No.7 output contact The ground for shielding OUT8+ The positive pole of the No.8 output contact OUT8- The negative pole of the No.8 output contact PCS-9785 Satellite-Synchronized Clock 5-11 Date: 2014-10-15...

  • Page 44: St Connector (Nr1217A)

    5.6.3 ST Connector (NR1217A) The COM module NR1217A provides 8 optical ports (ST connector). The No.1~4 ports form the group 1 and the No.5~8 form the group 2. NR1217 Figure 5.6-4 COM Module (NR1217A) PCS-9785 Satellite-Synchronized Clock 5-12 Date: 2014-10-15...

  • Page 45: Nr1218A)

    JP22 JP11 JP23 JP12 Timing message JP24 JP13 5.6.4 RS-232 (NR1218A) The COM module NR1218A provides 7 RS-232 serial ports. The No.1~4 ports form the group 1 and the No.5~7 form the group 2. PCS-9785 Satellite-Synchronized Clock 5-13 Date: 2014-10-15...

  • Page 46: Figure 5.6-5 Com Module (Nr1218A)

    Table 5.6-8 Pin definition of NR1218A Pin No. Symbol Description Port No. 1 RXD RS-232: RXD Serial port 1 1 TXD RS-232: TXD 1/2 SGND Signal reference 1/2 FGND Foiled layer 2 RXD RS-232: RXD Serial port 2 PCS-9785 Satellite-Synchronized Clock 5-14 Date: 2014-10-15...

  • Page 47: Ttl (Nr1219A)

    "OFF" to set the port in timing message output mode. 5.6.5 TTL (NR1219A) The COM module NR1219A provides 8 TTL output ports. The No.1~4 ports form the group 1 and the No.5~8 form the group 2. PCS-9785 Satellite-Synchronized Clock 5-15 Date: 2014-10-15...

  • Page 48: Figure 5.6-7 Com Module (Nr1219A)

    The positive pole of the No.7 TTL output OUT7- The negative pole of the No.7 TTL output The ground for shielding OUT8+ The positive pole of the No.8 TTL output OUT8- The negative pole of the No.8 TTL output PCS-9785 Satellite-Synchronized Clock 5-16 Date: 2014-10-15...

  • Page 49: Ac Modulation (Nr1220A)

    Table 5.6-11 Output signal mode of NR1219A Signal mode Group 1 (Jumper "ON") Group 2 (Jumper "ON") IRIG-B 5.6.6 AC Modulation (NR1220A) The COM module NR1220A provides 7 BNC ports to output AC modulated (1kHz sinusoid) IRIG-B code. PCS-9785 Satellite-Synchronized Clock 5-17 Date: 2014-10-15...

  • Page 50: Pwr Module (Power Supply)

    A 12-pin connector is fixed on the PWR module. The pin definition of the connector is described as below. PCS-9785 Satellite-Synchronized Clock 5-18 Date: 2014-10-15...

  • Page 51: Figure 5.7-1 Pwr Module

    PCS-9785 Satellite-Synchronized Clock 5-19 Date: 2014-10-15...
  • Page 52 This device, like all electronic equipments, contains electrolytic capacitors. These capacitors are well known to be subject to deterioration over time if voltage is not applied periodically. Deterioration can be avoided by powering the device up once a year. PCS-9785 Satellite-Synchronized Clock 5-20 Date: 2014-10-15...
  • Page 53 6 Settings Table of Contents 6 Settings .................... 6-a 6.1 Overview ......................6-1 6.2 For PCS-9785 Clock Source ................6-1 6.2.1 Device Settings ........................6-1 6.2.2 TimeZone Settings ....................... 6-2 6.2.3 ClkSrc Settings ........................6-3 6.2.4 NTP Settings ........................6-3 6.2.5 PTP Settings .........................

  • Page 54: Settings

    6 Settings PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...

  • Page 55: Overview

    NOTICE! According to different applications for different engineering requirements, settings may be different. This chapter describes as many settings as possible to make a reference for user. 6.2 For PCS-9785 Clock Source 6.2.1 Device Settings Default Value Item Range(Unit)

  • Page 56: Timezone Settings

    East 10th East 11th Setting Time zone East/West 12th West 1st West 2nd West 3rd West 4th West 5th Setting 12/-12 Time zone West 6th West 7th West 8th West 9th West 10th West 11th Setting PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...

  • Page 57: Clksrc Settings

    Opt_Priority_SatlCh SatlCh1 or SatlCh2 SatlCh1 satellite channels Reset to this year if there is a DefaultYear_SatlCh 2000~3000(1) 2018 synchronization error 6.2.4 NTP Settings Default Value Description Item Range(Unit) Enable/Disable SNTP/NTP En_Unicast_NTP Disable or Enable Enable PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...

  • Page 58: Ptp Settings

    Device domain number in PTP PTP3.DomainNo. 0~255 network 3 Device domain number in PTP PTP4.DomainNo. 0~255 network 4 PTP1.DomainNo., PTP2.DomainNo.  Domain number for this PTP device communicating with others as defined by the protocol PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...

  • Page 59: Serialport Settings

    0, 3, 5, 6, 9, 10, 12 Cfg_RingNet2 0, 3, 5, 6, 9, 10, 12 Cfg_NetPorts_Bond 000.000.000.000 Gateway 000.000.000.000~255.255.255.255 000.000.000.000 Destination_1 000.000.000.000~255.255.255.255 255.255.255.000 Genmask_1 000.000.000.000~255.255.255.255 000.000.000.000 Gateway_1 000.000.000.000~255.255.255.255 000.000.000.000 Destination_2 000.000.000.000~255.255.255.255 255.255.255.000 Genmask_2 000.000.000.000~255.255.255.255 000.000.000.000 Gateway_2 000.000.000.000~255.255.255.255 PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...
  • Page 60 The value of these settings represents a 4-bits binary number. Each bit represents a corresponding Ethernet port's ring-network status. Use the following map to decide the specific setting value. Additionally, the default value "0" means the ring network mode is deactivated. This device works in STP mode. PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...
  • Page 61 The value of this setting represents a 4-bits binary number. Each bit represents a corresponding Ethernet port's bonding status. Use the following map to decide the specific setting value. Additionally, the default value "0" means the channel bonding function is deactivated. PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...
  • Page 62 Subnet mask of local router 1, 2, 3, 4 Gateway_1, Gateway_2, Gateway_3, Gateway_4  IP address of local gateway (router) 1, 2, 3, 4 IP_FE1, IP_FE2, IP_FE3, IP_FE4  IP address of front-end 1, 2, 3, 4 in Substation Automation System (SAS) PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...

  • Page 63: For Pcs-9785 Clock Extension

    ASCII code. End mark End mark 6.3 For PCS-9785 Clock Extension 6.3.1 Overview User can use the RS-232 debugging port on the CLK module to download program and configure settings. The modified settings will be saved immediately and valid instantly.

  • Page 64: Current Year

    Reception mode of the first optical input, 1: idle-light-on; 0: idle-light-off Second D Reception mode of the second optical input, 1: idle-light-on; 0: idle-light-off Example: "F10" means the first is idle-light-on, the second is idle-light-off. 6-10 PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...

  • Page 65: Electrical Inputs Reception Mode

    Length of input cable (default value = 0), Unit: meter; Range: 1~9999; Step: 1 Example: A0030 means the first input cable length is 30m Command format: A? or B?  To query the current value of input cable length. PCS-9785 Satellite Synchronized-Clock 6-11 Date: 2019-07-05...

  • Page 66: Internal Clock Operation Mode

    1: alarm while one input channel is disconnected or the time source is asynchronous (default) 2: alarm while both input channels are disconnected Command format: W?  To query the current input channel alarm mode. 6-12 PCS-9785 Satellite Synchronized-Clock Date: 2019-07-05...
  • Page 67 7.2.1 Main Menu ..........................7-4 7.2.2 Status ............................ 7-5 7.2.3 Records ..........................7-6 7.2.4 Settings ..........................7-7 7.2.5 Local Command ........................7-7 7.2.6 Information..........................7-7 7.2.7 Test ............................7-8 7.2.8 Clock ............................. 7-8 7.2.9 Language ..........................7-8 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 68: Human Machine Interface

    7 Human Machine Interface PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 69: Overview

    7 Human Machine Interface 7.1 Overview NOTICE! ONLY the master mode PCS-9785 clock source is equipped with the following HMI for local operation. Operator can access this device from the HMI panel. Local communication with the device is possible in using a computer via the multiplex RJ-45 debugging port. Furthermore, remote communication is also possible in using the SAS via communication ports in the MON module.

  • Page 70: Led Indicator

    Modify the value  Modify and display the message number  Page up/down  7.1.3 LED Indicator HEAL THY ALARM MAS TE R S YNC P PS P PM A brief explanation has been made as bellow. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 71: Debugging Port

    Ethernet port. As shown in the following figure, a customized cable is applied for debugging via this multiplex RJ45 port. P1: To connect the multiplex RJ45 port. An 8-core cable is applied here. P2: To connect the twisted-pair Ethernet port of the computer. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 72: Ethernet Port Setup

    Press "▲" in the normal display and enter the main menu. Select different submenu by "▲" and "▼". Enter the selected submenu by pressing "ENT" or "►". Press "◄" and return to the previous menu. Press "ESC" back to main menu directly. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 73: Status

    Synchronization state of the satellite channel 2 (Invalid, Valid, Not Available) State_Ant_SatlCh2 Antenna state of the satellite channel 2 (OK, OverCurrent, UnderCurrent) State_Receiver_SatlCh2 Receiver state of the satellite channel 2 (Invalid, Valid, Not Available) N_Satellite_SatlCh2 Connected satellite number of the satellite channel 2 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 74: Records

    All records are stored in non-volatile memory. The device can still stock them even if it loses its power. Item Description Superv Events Self-supervision alarm IO Events Binary signal change record Device Logs Device operation log PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 75: Settings

    Send out the request of a program download 7.2.6 Information This menu is mainly used to display the version of the firmware, the version of the configuration, the time of downloading the configuration and the equipped modules status. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 76: Test

    This menu is mainly used to view and modify the current time of the internal clock in this device. 7.2.9 Language This menu is used to set the LCD display language with "+" or "-". PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 77 Figure 8.7-1 Cubicle grounding system ..................8-5 Figure 8.7-2 Device ground terminal ..................8-6 Figure 8.7-3 Ground strip and termination ................8-6 Figure 8.7-4 Antenna head installation ..................8-7 Figure 8.7-4 Arrestor installation ....................8-8 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 78: Installation

    8 Installation PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 79: Overview

    The basic precautions to guard against electrostatic discharge are as follows: Should boards have to be removed from this device installed in a grounded cubicle in an HV  switchgear installation, please discharge yourself by touching station ground (the cubicle) beforehand. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 80: Shipment Checking

    The location should not be exposed to excessive air pollution (dust, aggressive substances).  Surge voltages of high amplitude and short rise time, extreme changes of temperature, high  levels of humidity, severe vibration and strong induced magnetic fields should be avoided as far as possible. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 81: Mechanical Installation

    482.6 (290) Front Side 465±0.2 +0.4 4-Ø6.8 Cut-out Figure 8.6-1 Dimensions (unit: mm, 4U 19" rack) The following figure shows the installation way of a module being plugged into a corresponding slot. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 82: Electrical Installation And Wiring

    Movable parts of the cubicle such as doors (front and back) or hinged equipment frames must be PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 83: Device Ground Connection

    There are some ground terminals on some connectors of this device, and the sign is “GND”. All the ground terminals are connected in the cabinet of this device. Therefore, the ground terminal on the rear panel (see Figure 8.7-2) is the only ground terminal of this device. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 84: Grounding Strips

    Grounding: braided copper cable, 2.5mm ~ 6.0mm  Power supply, binary inputs & outputs: stranded conductor, 1.0mm ~ 2.5mm  Serial communication: 4-core shielded cable  Ethernet communication: 4-pair twisted shielded cable (category 5E)  PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 85: Antenna Installation

    NOTICE! Because of outdoors installation, a surge arrestor is obligatory. The arrestor should be installed between the antenna and the device. It also should be directly and independently grounded. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 86 8 Installation Figure 8.7-5 Arrestor installation PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 87 9.2 Safety Instructions ..................9-1 9.3 Commission Tools ................... 9-1 9.4 Setting Familiarization ..................9-2 9.5 Product Checks ....................9-2 9.5.1 With the Device De-energized ..................... 9-2 9.5.2 With the Device Energized ....................9-4 9.6 Final Checks ....................9-5 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 88: Commissioning

    9 Commissioning PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 89: Overview

    Modern test set may contain many of the above features in one unit. Minimum required equipment  Multimeter with suitable current range and voltage ranges.  Continuity tester (if not included in the multimeter).  PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 90: Setting Familiarization

    These tests are performed for the following hardware to ensure that there is no hardware defect. Defects of hardware circuits other than the following can be detected by self-monitoring when the DC power is supplied. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 91 Isolate all wiring from the earth and test the isolation with an electronic or brushless insulation tester at a DC voltage not exceeding 500V, The circuits need to be tested should include: PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 92: With The Device Energized

    The current and voltage transformer connections must remain isolated from the device for these checks. The trip circuit should also remain isolated to prevent accidental operation of the associated circuit breaker. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 93: Final Checks

    If the device is in a new installation or the circuit breaker has just been maintained, the circuit breaker maintenance and current counters should be zero. If a test block is installed, remove the test plug and replace the cover so that the device is put into service. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 94 9 Commissioning Ensure that all event records, fault records and alarms have been cleared and LED’s has been reset before leaving the device. PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 95 10 Maintenance Table of Contents 10 Maintenance ................10-1 10.1 Appearance Check ..................10-1 10.2 Failure Tracing and Repair ................10-1 10.3 Failed Module Replacement ............... 10-2 10.4 Cleaning ....................... 10-3 10.5 Storage ......................10-3 PCS-9785 Satellite-Synchronized Clock 10-1 Date: 2019-07-05...

  • Page 96: Maintenance

    10 Maintenance 10-2 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 97: Appearance Check

    Test circuit connections are correct  Modules are securely inserted in position  Correct DC power voltage is applied  Correct AC inputs are applied  Test procedures comply with those stated in the manual  PCS-9785 Satellite-Synchronized Clock 10-1 Date: 2019-07-05...

  • Page 98: Failed Module Replacement

     Switch off the DC power supply Disconnect the trip outputs Short circuit all AC current inputs and disconnect all AC voltage inputs Unscrew the module connector Unplug the connector from the target module. 10-2 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...

  • Page 99: Cleaning

    The spare device or module should be stored in a dry and clean room. Based on IEC standard 60255-1 the storage temperature should be from -40°C to +70°C, but the temperature of from 0°C to +40°C is recommended for long-term storage. PCS-9785 Satellite-Synchronized Clock 10-3 Date: 2019-07-05...
  • Page 100 10 Maintenance 10-4 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 101 11 Decommissioning and Disposal 11 Decommissioning and Disposal Table of Contents 11 Decommissioning and Disposal ..........11-a 11.1 Decommissioning ..................11-1 11.2 Disposal ......................11-1 PCS-9785 Satellite-Synchronized Clock 11-a Date: 2019-07-05...
  • Page 102 11 Decommissioning and Disposal 11-b PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 103 The device rack may now be removed from the system cubicle, after which the cubicles may also be removed. 11.2 Disposal NOTICE! Strictly observe all local and national laws and regulations when disposing the device. PCS-9785 Satellite-Synchronized Clock 11-1 Date: 2019-07-05...
  • Page 104 11 Decommissioning and Disposal 11-2 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 105 As demonstrated in the following figure, This device adopts the IRIG-B code which is complied to the IRIG Standard 200-04 and, according to IEEE C 37.118-2005, adds information about "Year" and "Signal quanlity". Figure 12-1 Time code format of IRIG-B 12-1 PCS-9785 Satellite-Synchronized Clock Date: 2019-07-05...
  • Page 106 12 Appendix PCS-9785 Satellite-Synchronized Clock 12-2 Date: 2019-07-05...
  • Page 107 Update certifications ;  R1.02 R1.00 2016-10-17 Optimize serial ports wiring instructions in different  modules. Add PCS-9785 Clock Extension with relevant hardware  configuration, setting method ; R1.10 R1.03 2017-07-19 Update alarm list ;  Update device menu ;...
  • Page 108 13 Revisions History PCS-9785 Satellite-Synchronized Clock 13-2 Date: 2019-07-05...

Table of Contents