I-Gard IPC DSP OHMNI User Manual

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Instruction Manual C-409

HIGH RESISTANCE

GROUNDING SYSTEM

DSP OHMNI

the power to protect

Default Chapter3
- Table of Contents3
Table of Contents5
Introduction5
Application6
Tables7
Installation7
- Table 3.1 System Module Requirements7
- Table 3.2 Standard Ribbon Cables7
Wiring8
- Figure 4.1A Typical One-Line Installation - Unit Substation9
- Figure 4.1C Power Supply DSP-DPS Wiring9
- Table of Figures9
- Figure 4.2 Preferred Feeder Module DSP-DFM Wiring10
- Figure 4.3 Alternative Sensor Wiring10
- Figure 4.4 Typical 4-Wire Communications Connection11
Display12
- Figure 4.5 Alternative Two-Wire Connection for RS-48512
- Figure 5.1 Home Screen12
- Figure 5.2 Alarm Screen12
Setup13
- Figure 6.1 Communications Set-Up13
- Figure 6.2 Communications Set-Up13
- Figure 6.3 Grounding Resistor Set-Up14
- Figure 6.4 Feeder Module Set-Up14
- Figure 6.5 I/D Check Indication15
- Figure 6.6 Feeder Module Set-Up16
- Figure 6.7 A) Feeder Module Successful B) Set-Up Not Successful16
- Figure 6.8 A) DSP-DM Allows Further Feeder Module Set-Up B) if Previous Set-Up Had Not Been Successful16
- Figure 6.9 Pulse Set-Up Request17
- Figure 6.10 Pulse Mode Set-Up17
- Figure 6.11 Typical Examples of Pulse Circuit Connection18
- Table 6.1 Pulsing Frequency Selection19
- Figure 6.12 Alarm Relay Setup19
- Figure 6.13 Alarm Relay Options19
Operation20
- Figure 6.14 Save Screen20
- Figure 6.15 Self-Test Prompt20
- Figure 7.1 Normal Home Screen20
- Figure 7.2 System Leakage Current L21
- Figure 7.3 Feeder Current I21
- Figure 7.4 Trip Defeated21
Alarm Indications22
- Figure 7.5 Pulse Control22
- Figure 7.6 New Home Screen Indicates Pulsing on22
- Figure 8.1 Alarm Screen23
Self-Test24
- Figure 8.2 Bus Fault24
- Figure 9.1 System-Test Prompt24
- Figure 9.2 Prompt for Feeder Test24
Events25
- Figure 9.3 Feeder Module Test25
- Figure 9.4 Test Result25
- Figure 10.1 Event Notification25
- Figure 10.2 Momentary Feeder Fault Example25
Maintenance and Testing26
Service27
Communications27
- Table 13.1 MODBUS RTU Standard 8 Byte Holding Register Read Function (03)28
- Table 13.2 Returned Information Structure for Holding Register Request28
- Table 13.3 Request to Write to Set a Bit on a Register (Modbus Force Coil)28
- Table 13.4 Returned Information from Dsp Following a Force Bit Request29
- Table 13.5 Feeder Module Ground Current Addresses30
- Table 13.6 Feeder Module Status Addresses31
- Table 13.7 Feeder Module Priority Addresses32
Specifi Cations33
- Table 13.8 System Function Registers33
Outline Dimensions35
- Figure 15.1 DIN Rail Mounted Modules35
- Figure 15.2 DSP-DM Display Module with Cut-Out Detail36
- Figure 15.3 DSP-DPS Power Supply Connections37
- Figure 15.4 DSP-DSM System Module Connection37
- Figure 15.5 DSP-DFM Feeder Module Connection37
Additional Information38
- Figure 15.6 DSP-DM Display Module Connections38
Instruction Manuals Ibc39

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I-Gard IPC DSP OHMNI Specifications

General

Short Circuit Current Rating (SCCR)	200 kA
Protection Modes	L-N, L-G, N-G
Enclosure	NEMA 4X
Diagnostics	LED status indicators
Compliance	UL 1449 4th Edition
Certifications	UL

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I-Gard IPC DSP OHMNI User Manual

Table of Contents

I-Gard IPC DSP OHMNI Specifications

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