Related Manuals for GDS Corp PROTECTOR P4XA
Summary of Contents for GDS Corp PROTECTOR P4XA
- Page 1 Operation and Maintenance Manual PROTECTOR P4XA Four Channel System Controller GDS Corp. 1245 Butler Road League City, TX 77573 409-927-2980 www.gdscorp.com...
- Page 2 ENTRETENU ET RÉPARÉ UNIQUEMENT PAR UN PERSONNEL QUALIFIÉ. ÉTUDIER LE MANUE D’INSTRUCTIONS EN ENTIER AVANT D’UTILISER, D’ENTRETENIR OU DE RÉPARER L’ÉQUIPEMENT. REVISION HISTORY Revision 1.0 10/30/23 Initial Release Revision 1.1 7/16/24 Engineering Update Copyright © 2024 GDS Corp. All Rights Reserved P/N 1200-1167-011 Page 3...
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Page 3: Table Of Contents
PROTECTOR P4XA User’s Manual, Revision 1.1 CONTENTS SAFETY INFORMATION _______________________________________________ 6 OVERVIEW _________________________________________________________ 7 INSTALLATION ______________________________________________________ 8 PROGRAMMING & SETUP ____________________________________________ 16 MODBUS REGISTER MAP _____________________________________________ 25 TROUBLESHOOTING GUIDE ___________________________________________ 27 SPECIFICATIONS ____________________________________________________ 29 DIMENSIONS ______________________________________________________ 30 Page 4... - Page 4 PROTECTOR P4XA User’s Manual, Revision 1.1 TABLE OF FIGURES FIGURE 3-1: AC POWER SUPPLY CONNECTIONS .................... 8 FIGURE 3-2: DC POWER CONNECTIONS ......................9 FIGURE 3-3: P4XA SIGNAL & RELAY CONNECTIONS ..................10 FIGURE 3-4: ANALOG INPUT WIRING FOR 3-WIRE POWERED SENSOR ............11 FIGURE 3-5: ANALOG INPUT WIRING FOR 2-WIRE LOOP-POWERED SENSOR ..........
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Page 5: Safety Information
Installation in any hazardous area must comply with all applicable restrictions, requirements, and guidelines for said hazardous areas. It is the end user customer’s final decision to ensure that the PROTECTOR P4XA System Controller is suitable for the intended use. -
Page 6: Overview
PROTECTOR P4XA User’s Manual, Revision 1.1 OVERVIEW The GDS Corp PROTECTOR P4XA System Controller is designed to provide power for and monitor gas values from one to four wired gas monitors via industry-standard 4-20mA analog inputs. The PROTECTOR P4XA features a 4.3” diagonal high-contrast, sunlight-readable color LCD display that provides immediate feedback on alarm status and input values. -
Page 7: Installation
POWER INPUT CONNECTION When using the optional AC power supply, the PROTECTOR P4XA is designed to operate on a clean source of 110VAC / 60 HZ or 220VAC / 50 Hz power. Up to 40 watts of power is available at the AUX PWR outputs. -
Page 8: Figure 3-2: Dc Power Connections
PROTECTOR P4XA User’s Manual, Revision 1.1 result in system startup delay and the need for gas sensors to reestablish their equilibrium and come back on-line. NOTE: TO ENSURE USER SAFETY, ALWAYS PROVIDE A SOLID EARTH GROUND CONNECTION AS SHOWN BELOW. -
Page 9: Figure 3-3: P4Xa Signal & Relay Connections
PROTECTOR P4XA User’s Manual, Revision 1.1 SIGNAL & RELAY CONNECTIONS The P4XA back panel PCB hosts all the signal & relay inputs and outputs, except for the Ethernet connection found on the back of the HMI controller. Figure 3-3: P4XA Signal & Relay Connections... -
Page 10: Figure 3-4: Analog Input Wiring For 3-Wire Powered Sensor
PROTECTOR P4XA User’s Manual, Revision 1.1 ANALOG INPUT CONNECTIONS The four analog input terminals are found along the bottom of the back panel PCB. Each provides convenient ground and +24V excitation voltage for remote sensors. Each input covers the full range of 0-20mA, allowing the P4XA to recognize problems with remote sensors that use negative fault values to show trouble. -
Page 11: Figure 3-6: Local Analog Output Wiring
Figure 3-6: Local Analog Output Wiring RELAY OUTPUT CONNECTIONS 1-4 The PROTECTOR P4XA has four dry-contact five-amp (5A) alarm relays that are wired to provide NORMALLY OPEN and NORMALLY CLOSED contacts. When not energized, the COMMON terminal is connected to the NORMALLY CLOSED contact. When the relay is energized, the COMMON terminal is connected to the NORMALLY OPEN terminal. -
Page 12: Figure 3-7: Alarm Relay 1-4 Wiring
THE RELAY FROM TRANSIENT VOLTAGE SPIKES THAT OCCUR WHEN THE RELAY OPENS UNDER LOAD. RELAY OUTPUT CONNECTIONS 5-6 The PROTECTOR P4XA has two dedicated wet-contact alarm relays that are wired to provide switched +24V to local strobes or piezo buzzers. Output current is limited to 500 mA (12 watts) per output. -
Page 13: Figure 3-9: Modbus Rs-232 Serial Interface Wiring
The PROTECTOR P4XA includes a single non-isolated RS-232 serial MODBUS slave port. This port allows a remote MODBUS master to query the PROTECTOR P4XA to retrieve gas levels, alarm conditions and other data. See chapter on MODBUS REGISTER MAP for more detail on data available over MODBUS. -
Page 14: Figure 3-10: Remote Alarm Ack Interface
Figure 3-10: Remote Alarm ACK Interface ISOLATED 4-20MA OUTPUTS The PROTECTOR P4XA can be configured to include an optional four-channel 4-20mA isolated analog output module. If installed, each output will mirror the incoming 4-20mA signal on corresponding channels 1, 2, 3 and four. The four-channel output module, if installed, is found on the lower right side of the enclosure. -
Page 15: Programming & Setup
Channels are programmed using the CHANNEL CONFIGURATION MENU, while global settings for the entire controller are programmed using the SYSTEM SETUP MENU detailed later in this chapter. After power-up, the PROTECTOR P4XA will display a start-up screen followed by the Primary Display. PRIMARY DISPLAY After power-up, the PRIMARY DISPLAY screen is activated. -
Page 16: Figure 4-2: Bar Graph Display Screen
PROTECTOR P4XA User’s Manual, Revision 1.1 Pressing the SETUP button will provides access to relay settings, Analog and MODBUS output settings, system settings and a DIAGNOSTICS screen that offers convenient ways to test communications with monitoring devices. Pressing the DISPLAY button moves the screen to the BARGRAPH display screen. -
Page 17: Figure 4-3: Trend Display Screen
PROTECTOR P4XA User’s Manual, Revision 1.1 TREND DISPLAY SCREEN The four TREND screens show the most recent 30 minutes of sensor trend data. The screen also shows the programmed Alarm 1 and Alarm 2 values with yellow and red dashed indicator lines. -
Page 18: Figure 4-4: Channel Setup Menu
PROTECTOR P4XA User’s Manual, Revision 1.1 CHANNEL SETUP MENU After installation, each channel in the PROTECTOR P4XA system controller must be programmed to support connected sensors and other devices using the CHANNEL SETUP menu. To access the CHANNEL SETUP menu, press any of the four channel detail screens shown on the PRIMARY DISPLAY. -
Page 19: Figure 4-5: Setup Menu Screen
PROTECTOR P4XA User’s Manual, Revision 1.1 Alarm 2 BELOW BELOW: Alarm if input is BELOW the target value “ABOVE” ABOVE: Alarm if input is ABOVE the target value Alarm 2 NORM NORM: Alarm 2 becomes inactive if alarm condition is no “NORM”... -
Page 20: Figure 4-6: Relay Setup Screen
PROTECTOR P4XA User’s Manual, Revision 1.1 RELAY SETUP SCREENS 1-6 The RELAY SETUP MENU allows the user to program the four dedicated alarm relays and two wet contact dedicated local strobe and horn relays. Relay 3 can be used as a dedicated HORN relay, and Relay 4 is commonly used as a FAULT or TROUBLE output. -
Page 21: Figure 4-7: Analog Output Screen
Figure 4-7: Analog Output Screen MODBUS SERIAL PORT MENU The PROTECTOR P4XA SYSTEM CONTROLLER features an RS-485 serial communication port that is configured as a MODBUS serial slave. External MODBUS masters can access the controller’s data and status by reading predefined registers from the P4XA. See Chapter 6 for a list of MODBUS registers and data formats. -
Page 22: Figure 4-8: Modbus Serial Port Menu
PROTECTOR P4XA User’s Manual, Revision 1.1 Figure 4-8: MODBUS Serial Port Menu COMMUNICATIONS MENU Name Description Default ENABLED The MODBUS port can be ENABLED or DISABLED. If “DISABLED” DISABLED, the P4XA will not reply to any MODBUS command received on the slave port interface. -
Page 23: Figure 4-9: Diagnostics Screen
Confirming proper operation of alarm systems connected to the PROTECTOR P4XA is critical. To support that need, the PROTECTOR P4XA has output override options that allows the user to manually trigger alarm relays and preset analog outputs to fixed values. -
Page 24: Modbus Register Map
MODBUS REGISTER MAP MODBUS OPERATION If the MODBUS serial interface is enabled (See Fig. 4-6), the PROTECTOR P4XA will respond to MODBUS data read requests with integer, floating point and binary status information on each of the 32 channels. The INTEGER reading returns a single 16 bit register for each channel, with a ‘counts’ value between 800 (zero) and 4000 (full scale). - Page 25 PROTECTOR P4XA User’s Manual, Revision 1.1 33020 Channel #2 Status 16 bits Integer See below 33121 Channel #3 Status 2x 16 bits Float See below 33122 Channel #4 Status 2x 16 bits Float See below Channel Status Word: Bit 0: 1 = Channel in Fault, 0 = No Fault...
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Page 26: Troubleshooting Guide
• AC Power supply failure – measure input and output voltage on power supply • HMI Failed Power-On Self-Test (POST) – contact GDS Corp • Relays not responding to inputs after power-on – Relays disabled during warmup. NO INPUT ON CHANNEL “X”... - Page 27 PROTECTOR P4XA User’s Manual, Revision 1.1 SERIAL MODBUS DATA INCORRECT • Floating point data requires two registers and proper interpretation of data; Data should be interpreted using “Little Endian Byte-Swap” format. • Register starting point or register address incorrect Page 28...
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Page 28: Specifications
PROTECTOR P4XA User’s Manual, Revision 1.1 SPECIFICATIONS +24V (+/- 20%) or 100-240 VAC with optional AC supply Power Input* Sensor Power 40 watts DC if using optional AC supply. Limited only by external source otherwise User Interface 4.3” Diagonal 480 x 272 resistive touch screen; intuitive display and... -
Page 29: Dimensions
PROTECTOR P4XA User’s Manual, Revision 1.1 DIMENSIONS 10.72” 12.5” 7.19” DEEP Figure 8-1: Outside Dimensions Page 30... -
Page 30: Figure 8-2: Mounting Hole Dimensions
PROTECTOR P4XA User’s Manual, Revision 1.1 8.00” 12.75” 0.34 DIA (4x) Figure 8-2: Mounting Hole Dimensions Page 31... - Page 31 PROTECTOR P4XA User’s Manual, Revision 1.1 Page 32...