MOBILTEX CorTalk SPI1 User manual

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 1 of 57
REV: 1.14
Installation and Operating
Instructions
FOR
SPI1 corTalk® Portable &
Stationary Interrupters
Portable Stationary
Print Date:
January 17, 2019

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 2 of 57
REV: 1.14
RESTRICTED PROPRIETARY INFORMATION
This information disclosed herein is the exclusive property of Mobiltex®Data Ltd. and is not to be disclosed without
the written consent of Mobiltex®Data Ltd. No part of this publication may be reproduced or transmitted in any form
or by any means including electronic storage, reproduction, execution or transmission without the prior written consent
of Mobiltex®Data Ltd. The recipient of this document by its retention and use, agrees to respect the security status of
the information contained herein.
This document is intended for limited circulation.
The information contained in this document is subject to change without notice and should not be construed as a
commitment by Mobiltex®Data Ltd. unless such commitment is expressly given in a covering document.
© Copyright Mobiltex®Data Ltd. (2009-2019)
CURRENT REVISION APPROVALS (Revision 1.14)
Name
Location
Job Function
Signature
Date
Tony da Costa
Calgary
Author, Engineering Manager
Jerry Chilibecki
Calgary
Engineering Director
REVISION HISTORY
Rev
Start
Date
Approval
Date
Description
Prepared By
1.00
Oct 26, 2006
Oct 27, 2006
Original Release
Tony da Costa
1.01
Nov 10,
2006
Nov 14,
2006
Added information on synchronization when used with other
manufacturers’ interrupters. Added SPI1Config utility information. Fixed
‘Timing accuracy (AC line sync enabled)’ spec.
Tony da Costa
1.02
Jan 30, 2007
Jan 30, 2007
Added descriptions for datalogger digital filter additions. Added
descriptions for datalogger media format menu.
Tony da Costa
1.03
June 4, 2007
June 4, 2007
Added stationary interruption information.
Tony da Costa
1.04
Aug 28,
2007
Aug 28,
2007
Added de-polarization mode information. Changed datalogger high range
to 150V from 75V.
Tony da Costa
1.05
Sept 20,
2007
Sept 20,
2007
Added information on reverting to factory defaults. Added information on
new backlight parameter for v1.09 code. Changed information on menu
key operation for v1.09 code.
Tony da Costa
1.06
Dec 5, 2007
Dec 5, 2007
Added information on properly locking the four circular connectors.
Added cable color code information on ring lug version of SSR1.
Tony da Costa
1.07
April 15,
2008
April 15,
2008
V1.14 firmware changes. Added config menu page 1 and 2 changes.
Added description of new NO-GPS operation mode. Added schematic
diagram of SSR1. Updated relay type table. Updated MSR2 picture to
latest production model.
Tony da Costa
1.08
Jan 5, 2009
Jan 5, 2009
Updated with new stationary SPI1 form factor and mounting brackets.
Tony da Costa
1.09
Jan 30, 2009
Jan 30, 2009
Reviewed and updated Mobiltex part numbers. Added HPR information.
Tony da Costa
1.10
Feb 4, 2009
Feb 4, 2009
Corrected HPR1/2 option supply connection description.
Tony da Costa
1.11
March 19,
2009
March 20,
2009
Added information on interruption cycle on-first parameter available in
v1.20 code.
Tony da Costa
1.12
Aug 12,
2014
Aug 12,
2014
Updated power on/off section for newer stationary SPI1 units. Added GPS
Sync Once parameter information.
Tony da Costa
1.13
Sept 30,
2016
Sept 30,
2016
Added half-hour time zone information.
Tony da Costaa
1.14
January 17,
2019
January 17,
2019
Updated for v1.28 firmware.
Tony da Costa

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 3 of 57
REV: 1.14
Contents
1Introduction ...........................................................................................................................................................6
2Component Identification and Descriptions ..........................................................................................................7
3User Interface Summary......................................................................................................................................24
4Basic Operation ...................................................................................................................................................36
4.1 Charging ......................................................................................................................................................36
4.2 Power Up and Power Down.........................................................................................................................36
4.3 Configuration...............................................................................................................................................36
4.3.1 Relay Type...........................................................................................................................................36
4.3.2 Time Zone............................................................................................................................................36
4.3.3 Offset ...................................................................................................................................................37
4.3.4 Cloning Schedules and Parameters......................................................................................................37
4.3.5 Datalogger Media Format....................................................................................................................37
4.3.6 Backlight Mode ...................................................................................................................................37
4.3.7 No GPS Interruption............................................................................................................................37
4.3.8 Reverting to Factory Defaults..............................................................................................................37
4.4 Attachment...................................................................................................................................................37
4.5 Manual Interruption.....................................................................................................................................38
4.6 Scheduled Interruption.................................................................................................................................38
4.7 De-polarization Operation ...........................................................................................................................39
4.8 SPI1Config Utility.......................................................................................................................................39
4.9 Firmware Updates........................................................................................................................................40
5Optional Datalogger Operation............................................................................................................................41
5.1 Configuration...............................................................................................................................................41
5.1.1 Station Series .......................................................................................................................................41
5.1.2 Position Chainage................................................................................................................................41
5.1.3 On Offset .............................................................................................................................................41
5.1.4 Off Offset.............................................................................................................................................41
5.1.5 Fast Acquisition Interval......................................................................................................................41
5.1.6 Meter Range.........................................................................................................................................41
5.1.7 Text Notes............................................................................................................................................42
5.1.8 Datalogger Enable................................................................................................................................42
5.1.9 Digital Filter Enable.............................................................................................................................42
5.2 Attachment...................................................................................................................................................42
5.3 Retrieving Files............................................................................................................................................42
6Maintenance.........................................................................................................................................................43
6.1 Cleaning.......................................................................................................................................................43
6.2 Battery Life..................................................................................................................................................43
6.3 Servicing......................................................................................................................................................43
A. Relay Type Encoding ......................................................................................................................................44
B. Cable Diagrams ...............................................................................................................................................45
C. Specifications...................................................................................................................................................57

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 4 of 57
REV: 1.14
Figures
Figure 1 Top Front View of SPI1 Portable Interrupter..................................................................................................7
Figure 2 Front and Back Views of SPI1 Stationary Interrupter.....................................................................................8
Figure 3 SPI1 Stationary Interrupter Mounting Area Dimensions ................................................................................8
Figure 4 SPI1 Stationary Interrupter Mounting Bracket Dimensions............................................................................9
Figure 5 SPI1 Stationary Interrupter Optional RAM Mount .......................................................................................10
Figure 6 SPI1 Keypad and LCD..................................................................................................................................11
Figure 7 Side View of SPI1 Portable Interrupter.........................................................................................................12
Figure 8 Back View of SPI1 Stationary Interrupter.....................................................................................................13
Figure 9 Proper Installation of Cable Ends On Circular Connectors...........................................................................13
Figure 10 SPI1 External Connectors ...........................................................................................................................14
Figure 11 SPI1 AC Charge Cable................................................................................................................................15
Figure 12 SPI1 DC Charge Cable................................................................................................................................15
Figure 13 SPI1 Programming Cable............................................................................................................................16
Figure 14 SPI1 Portable Interrupter GPS Antenna......................................................................................................16
Figure 15 SPI1 Stationary Interrupter GPS Antenna...................................................................................................17
Figure 16 SPI1 Portable Interrupter to MSR2/Rectifier Cable ....................................................................................17
Figure 17 MSR2 External Connectors.........................................................................................................................18
Figure 18 Solid State Relay (SSR1) Connections........................................................................................................19
Figure 19 SPI1 Stationary Interrupter Power and Relay Control Cable ......................................................................20
Figure 20 HPR2 DC-Only 100A High Power Relay...................................................................................................21
Figure 21 HPR2 Attachment Cables............................................................................................................................22
Figure 22 HPR1/2 Optional Power Connection Cable ................................................................................................22
Figure 23 HPR1 AC/DC 50A High Power Relay........................................................................................................23
Figure 24 HPR1 Attachment Cables............................................................................................................................23
Figure 25 corTalk® Portable Interrupter Menus .........................................................................................................27
Figure 26 corTalk® Portable Interrupter Status Menu ................................................................................................28
Figure 27 corTalk® Portable Interrupter Scheduler Menu Page 1 ..............................................................................29
Figure 28 corTalk® Portable Interrupter Scheduler Menu Page 2 ..............................................................................30
Figure 29 corTalk® Portable Interrupter Scheduler Menu Page 3 ..............................................................................32
Figure 30 corTalk® Portable Interrupter Scheduler Menu Page 4 ..............................................................................33
Figure 31 corTalk® Portable Interrupter Configuration Menu Page 1........................................................................34
Figure 32 corTalk® Portable Interrupter Configuration Menu Page 2........................................................................35
Figure 33 SPI1Config Screen Shot..............................................................................................................................39

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 5 of 57
REV: 1.14
Tables
Table 1 SPI1 Communications/Datalogger Connector Pinout.....................................................................................14
Table 2 SPI1 Relay Connector Pinout .........................................................................................................................14
Table 3 SSR1 Ring Lug Circuits .................................................................................................................................19
Table 4 SPI1 Stationary Interrupter Power/Relay Control Cable Pinout.....................................................................20
Table 5 Relay Type Encoding Bits..............................................................................................................................44

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 6 of 57
REV: 1.14
1Introduction
The SPI1 is a powerful interruption controller for use with cathodic protection rectifiers. Precise timing accuracy and
repeatability is attained with GPS and microprocessor technology. A small physical size and wide operating
temperature range make this device ideally suited for use in portable applications.
Features:
Interactive detailed plain English menus provide easy and intuitive operation.
Bright backlit alphanumeric display provides detailed presentation of all important parameters.
Large dedicated function keys with audible annunciation facilitate accurate data entry.
Color coded bright LED indicators focus the user’s attention to important status conditions.
A resolution of 1ms and maximum range of 60,000ms for OFF and Cycle Times provides the user with very
fine timing selection.
Excellent timing accuracy is attained with a 20 channel GPS receiver and a temperature compensated high
stability crystal oscillator.
Field programmable parameters allow device customization for use with a wide range of relays.
Can immediately operate in manual mode or be programmed with up to 7 predefined schedules.
Device configuration parameters and schedule are permanently stored in non-volatile memory with auto-
resume after a power disruption.
A wide -30°C to +70°C operating temperature range allows installation in extreme environments.
Internal AC line synchronization provides rectifier switching at zero primary current conditions.
The front keypad and display are fully sealed and waterproof for maximum reliability.
GPS satellite and internal diagnostic self test routines assure proper operation.
Holds rectifier power on when not interrupting.
Software can be field upgraded using RS-232.
Can include or be upgraded to include a data logger.
Low current solid state components provide maximum reliability.
Available in AC/DC/battery powered portable or AC powered battery backed stationary fixed mount
configurations.
This document details the installation and operation of the Mobiltex®SPI1 Portable & Stationary Interrupter products.
This document version applies to SPI1 devices that are equipped with version 1.27 firmware or higher. If your SPI1
has firmware with a lower version, some menu items and features may differ. Please contact Mobiltex® for firmware
updates.

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 7 of 57
REV: 1.14
2Component Identification and Descriptions
Figure 1 shows the top front view of the SPI1 Portable Interrupter. To access the keypad and LCD display, the lid
latches must be popped open and the lid lifted. The SPI1 may be secured by installing pad locks (not provided)
through the two sets of lock loops.
Figure 1 Top Front View of SPI1 Portable Interrupter

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 8 of 57
REV: 1.14
Figure 2 shows the front and back views of the SPI1 Stationary Interrupter configuration. The SPI1Stationary
Interrupter is designed to be mounted inside a rectifier cabinet for permanent installations.
Figure 2 Front and Back Views of SPI1 Stationary Interrupter
Figure 3 shows the locations of the connectors and mounting studs on the back of the SPI1 Stationary Interrupter.
These dimensions are necessary in preparing a flat mounting surface for attachment of the SPI1 Stationary Interrupter.
Figure 3 SPI1 Stationary Interrupter Mounting Area Dimensions
Figure 4 shows the dimensions of the mounting bracket provided with the SPI1 Stationary Interrupter. The plate may
be attached to the SPI1 in either a top or bottom mount configuration.

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 9 of 57
REV: 1.14
Figure 4 SPI1 Stationary Interrupter Mounting Bracket Dimensions
Additional accessories are available for alternate mounting applications. Figure 5 shows the SPI1 Stationary
Interrupter fitted with an optional RAM mount (Mobiltex P/N H16550B101U).

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 10 of 57
REV: 1.14
Figure 5 SPI1 Stationary Interrupter Optional RAM Mount

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 11 of 57
REV: 1.14
Figure 6 shows the keypad and LCD. Below the LCD display are three LED indicators marked CHARGE,
INTERRUPT, AND UNLOCKED.
The yellow CHARGE LED lights when power is applied to the AC+/- pins on any one of the 6 pin circular
connectors (A, B (portable-only), or C (portable-only)) on the side of the unit (see Figure 10) using one of the SPI1
charge cables, or another suitably configured connection.
The green INTERRUPT LED will light when the rectifier circuit is being interrupted, i.e. no current flowing.
The orange UNLOCKED LED will light when the unit does not have a valid GPS time lock thus not allowing
synchronized interruption. The UNLOCKED LED will initially light when the unit is turned on and remain on until
enough satellites have been acquired to obtain a time lock. This initial satellite lock may take up to 13 minutes
when the unit is in good satellite coverage. If the unit has been listening to the GPS datastream within the prior two
week period, then the lock time will be substantially less than this. The LED will also light if GPS acquisition is lost
for over 5 minutes during an interruption cycle. Interruption is always disabled if the UNLOCKED light is lit. An
interruption cycle that has been interrupted by loss of GPS lock will auto-resume upon re-acquisition of the GPS
signal.
Figure 6 SPI1 Keypad and LCD

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 12 of 57
REV: 1.14
Figure 7 shows the left side view of SPI1 Portable Interrupter. Figure 8 shows the back view of the SPI1 Stationary
Interrupter. Visible are the protection caps which guard against dust and moisture entering the SPI1 external
connectors when the unit is not in use. For easy reference, the connectors are labelled A through E.
Figure 7 Side View of SPI1 Portable Interrupter

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 13 of 57
REV: 1.14
Figure 8 Back View of SPI1 Stationary Interrupter
***Important Note On Proper Installation Of Circular Connector Cable Ends***
The four circular multi-conductor connectors (A, B, C and D) on the SPI1 are waterproof when the mating cable end
is properly installed. For a waterproof connection, the mating connectors must be fully engaged. Turn the connector
wing nut ¼” past the first feel of resistance, until a definitive click is felt. Failure to fully engage the connector will
result in corrosion of the connector pins as moisture enters the contact areas.
Figure 9 shows the mating connector position at the initial resistance point, and in the fully locked position.
Figure 9 Proper Installation of Cable Ends On Circular Connectors
Figure 10 shows a close up view of the GPS antenna connector (E), the communications/datalogger connector (D)
and the power/relay connectors (A,B,C). The SPI1 Stationary Interrupter only has connectors A, D and E
available—the pin outs are identical to SPI1 Portable Interrupter. The pinout of the communications connector (D)
is shown in Table 1. Table 2 shows the pinout of the relay connectors (A, B, C).

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 14 of 57
REV: 1.14
Pin #
Label
Description
1
AIN+
Datalogger Analog Input +
2
USBD-
Datalogger USB Port D-
3
USBD+
Datalogger USB Port D+
4
USB+5V
Datalogger USB Port +5V
5
GND
Ground (Common for Datalogger USB port and SPI1 programming port)
6
TXD
SPI1 Programming port, TXD line (DCE)
7
RXD
SPI1 Programming port, RXD line (DCE)
8
AIN-
Datalogger Analog Input -
Table 1 SPI1 Communications/Datalogger Connector Pinout
Pin #
Label
Description
1
INT+
Relay Drive Positive Voltage (+6V or 12V)
2
INT-
Relay Drive Switched Negative
3
GND
Ground (Do not connect this to Earth ground! Only used for powering certain
types of Mobiltex relays)
4
AC+
Charger/60Hz Reference AC Input (Reference Capability On Port A Only)
5
AC-
Charger/60Hz Reference AC Input (Reference Capability On Port A Only)
6
RELAYSNS
Relay Type Detect Line (For Use With Mobiltex®Provided Relays)
Table 2 SPI1 Relay Connector Pinout
Figure 10 SPI1 External Connectors
Figure 11 and Figure 12 show the charging cables for the SPI1 Portable Interrupter. These cables are used to
recharge the SPI1 Portable Interrupter integral battery from AC mains or from a vehicle cigarette lighter socket.

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 15 of 57
REV: 1.14
Figure 11 SPI1 AC Charge Cable
Figure 12 SPI1 DC Charge Cable
Figure 13 shows the serial programming cable (P/N W16400CPI06) for the SPI1 Portable or Stationary Interrupters.
The cable may be used to load new firmware into the SPI1 by attaching the DE-9S connector to the serial port on a
PC and using the ‘SPI1Loader.exe’ application. This cable may also be used for configuration of general parameters
and schedules using the PC-based utility ‘SPI1Config.exe’.

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 16 of 57
REV: 1.14
Figure 13 SPI1 Programming Cable
Figure 14 shows the GPS antenna supplied with the SPI1 Portable Interrupter. The antenna has a 3 meter cable
attached that is terminated in a TNC connector. The TNC connector must be threaded onto the GPS antenna port on
the SPI1 Portable Interrupter during operation. The antenna top face must be oriented as shown.
Figure 14 SPI1 Portable Interrupter GPS Antenna
Figure 15 shows the GPS antenna used with the SPI1 Stationary Interrupter. The antenna has a 3 meter cable attached
that is terminated with an SMA connection. The SMA connector must be threaded on the GPS antenna port on the
rear of the SPI1 Stationary Interrupter.

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 17 of 57
REV: 1.14
Installation of the antenna requires that a 0.75” round hole be punched through the mounting surface to allow the
antenna cable to enter. The antenna must be mounted on the outside of the rectifier cabinet. An integral sealing gasket
is present to prevent water entry into the rectifier cabinet. The top face must be oriented skyward.
Figure 15 SPI1 Stationary Interrupter GPS Antenna
Figure 16 shows the 3 meter long cable (Mobiltex®P/N W16400CPI03) used to connect the SPI1 Portable
Interrupter to the MSR2 relay or directly to a rectifier with a Mobiltex®interruption port already hardwired in. The
cable is symmetric, so either end can be plugged into the SPI1 or the MSR2. The connectors on the cable and
SPI1/MSR2 form a waterproof connection when mated.
Figure 16 SPI1 Portable Interrupter to MSR2/Rectifier Cable

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 18 of 57
REV: 1.14
Figure 17 shows the MSR2 (P/N A15060201B2) mechanical relay assembly. The relay portion of the MSR2 is
rated at 8A at 250VAC/150VDC max. The MSR2 is internally protected with a 10 Amp slow blow 5mm x 20mm
fuse. Replacement fuses are available from Mobiltex®as part number F0131110A00 (Littelfuse part number
218010HXP). The MSR2 is connected to the device requiring interruption through two clip-on leads.
Figure 17 MSR2 External Connectors

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 19 of 57
REV: 1.14
Figure 18 shows the SSR1 solid state relay (P/N A15000SPI01). This relay is capable of interrupting up to 100A on
a 120/240VAC circuit. The relay is attached to the device requiring interruption via a Hubbell CS-6365C circular
power connector. Ground is attached to the green terminal, neutral is attached to the white terminal, incoming power
is attached to the XXX terminal, and switched power is available on the YYY terminal. The SSR1 provides charging
current and an AC synchronization signal to the SPI1.
Extreme caution must be taken when handling the relay after it has been in use. The unit will get extremely hot during
normal operation when a large load is being controlled. After interruption is complete and the relay connector is
disconnected from the load, the relay should be left to cool for 1 hour before the unit is handled with bare hands.
During operation, ensure that the heatsink fins on the bottom of the relay are exposed to adequate air flow, otherwise
the relay may overheat. If the relay does overheat, an internal thermal cut off will turn off the relay until the internal
temperature returns to an acceptable level.
Figure 18 Solid State Relay (SSR1) Connections
The SSR1 relay is also available with ring lugs terminating the individual conductor wires (P/N A15000SPI07), instead
of the circular power connector. Table 3 describes the function of each wire. A simplified schematic of the relay may
be found in Appendix B.
Wire
Color
Label
Description
Green
Earth Ground
This wire should be connected to a proper earth ground point for
safe operation.
White
Neutral (N)
Optionally connected to power system neutral. When connected,
the SPI1 will charge from the line power source. Only connect if
the voltage between N and L1 is 120VAC +/- 20V.
Red
Line In (L1)
Line power input connected to relay contacts.
Black
Line Out (L1 Switched)
Switched line power output from relay contacts.
Table 3 SSR1 Ring Lug Circuits

MOBILTEX® DATA LTD.
TITLE: Installation and Operating Instructions
Calgary, Alberta
DOCUMENT NO.:
SPI1-MAN-001
SHEET: 20 of 57
REV: 1.14
Figure 19 shows the 1.5 meter (10 feet) long cable (Mobiltex®P/N W16400CPI10) used to connect the SPI1
Stationary Interrupter to a rectifier. The connections to the rectifier are provided as bare, un-terminated wires.
The following connections are available at the end of the cable:
SPI Pin #
Label
Wire
Color
Description
1
INT+
Red
Relay Drive Positive Voltage (+6V or 12V)
2
INT-
Green
Relay Drive Switched Negative
3
GND
Black
Ground (Do not connect this to Earth ground! Only used for powering certain
types of Mobiltex relays)
4
AC+
Orange
Power/60Hz Reference AC Input
5
AC-
White
Power/60Hz Reference AC Input
Table 4 SPI1 Stationary Interrupter Power/Relay Control Cable Pinout
Figure 19 SPI1 Stationary Interrupter Power and Relay Control Cable
Figure 20, Figure 21, and Figure 22 show the contents of the HPR2 DC-only 100A high power relay package
(A15000SPI05). This relay is capable of switching DC loads of up to 100 Amps at 350 Volts. Over-current and
Reverse-polarity indications are provided by both visual indicators and a loud buzzer.
The relay is provided with two color-coded heavy duty cables (A02100HPR02 and A02100HPR03) that are used to
connect the relay contacts to the source being interrupted. The red cable must be attached to the highest potential side
of the circuit, i.e. conventional current must enter the red terminal and exit through the black terminal. If this
connection is made incorrectly, the reverse polarity indicator will light and a buzzer will sound.
When in use, the 5/16” bronze chassis stud should be connected to an adequate Earth ground point for safety reasons.
Installation of the relay must comply with all applicable safety standards for the particular installation.