Murphy Network Card Series 1501 User Manual

Series 1501 Selectronic®  
Micro-Controller/Annunciator  
S15-96122B  
Revised 07-06  
Catalog Section 50  
Alarm/Shutdown for 32 or 64 N.O. or N.C. Sensors  
Operating Sequence Selection  
Field Adjustable Sensor Nomenclature  
Selectable Sensor Lockouts Class A, B, C or P  
Built-In Tachometer/Overspeed Function  
RS232 or RS485 Modbus RTU Communications  
Two Start/Run Timers and Elapsed Time Meter  
CSA Certified or NRTL Approved for Use in  
Class I, Div. 1 Grps. C & D Hazardous Locations  
NRTL/C  
Applications  
Adjustable Time Delays:  
Description  
(standard Series 1501)  
The Series 1501 system can be configured to mon-  
itor applications such as: Air and Gas  
Compressors, Natural Gas Refueling, and other  
Industrial Operations. For a list of applications and  
our cataloged programs contact a Murphy sales  
representative. Custom programming available at  
additional charge.  
The Series 1501 instrument is a microprocessor-  
based alarm, shutdown and control system with  
tachometer/hourmeter function. It annunciates  
in alphanumeric characters the protective device  
that has signaled an alarm or caused equipment  
shutdown. Information is called up and adjust-  
ments are made on a six-button keypad on the  
face of the unit. Configurations such as: Alarm  
or Shutdown Nomenclature, Preset Timers, and  
Tachometer Calibration can be made in the  
field.  
Prelube  
Rest  
Process Delay  
Run Delay  
Purge  
Permissive  
Idle/Cooldown  
Postlube  
Crank  
Fuel Delay  
Load Delay  
Test  
Class B1 Sensor Lockout  
Class B2 Sensor Lockout  
Features  
Before Ignition Ground or Electric Motor  
Stop (for up to 59 seconds)  
32 or 64 sensor inputs (N.O. or N.C.) for  
alarm or shutdown.  
Sensor Inputs Terminal Block: Rail mount  
Easy operation/adjustments Six-button keypad.  
DIN type; 32 terminals, screw type.  
Murphy’s Series 1501 system has seven SPDT  
relays. On the standard model, the relays are  
assigned to the following functions: Lube,  
Crank, Ignition/Motor, Fuel Valve, Load,  
Alarm, Shutdown.  
The complete Series 1501 system consists of a  
head (monitor), sensor input terminal strip (two  
needed for 64 sensor models), 36 inch (914  
mm) flat ribbon cable(s) for connecting the ter-  
minal block to the head/monitor, and a Class I,  
Div. 1, explosion-proof power supply.  
RS232 or RS485 Modbus RTU communica-  
Opto-Isolated Tach/Run Input: Magnetic  
pickup, 4.5 to 120 Vrms, 0-10 kHz. CD igni-  
tion, positive or negative ground, 100 to 300  
VDC, 3-666 Hz. 12 to 125 VDC or 120 Vrms,  
50/60 Hz may be used for run signals.  
tions.  
Automatic Engine Control.  
Two Start-Run Timers.  
Seven Control Relay Outputs.  
Operating Temperatures: 32 to 122°F  
Pre/Postlube Time Delay.  
(0 to 50°C).  
Automatic Compressor Loading.  
Storage Temperatures: -4 to 158°F (-20 to 70°C).  
Case: ABS plastic, 1/4 DIN (90 x 90 mm).  
Specifications  
Interface Output: Factory configured for  
RS232; field-selectable for RS485 (specify  
for factory configured RS485).  
Power Consumption: 120 VAC (7.5 VA);  
12 VDC (3.5 watts); 24 VDC (3.5 watts).  
Sensor Inputs: 32 to 64 N.O. and/or N.C. inputs  
Alphanumeric Display: 2 lines, each line with  
®
The Series 1501 system is powered from 120  
such as Murphy Swichgage instruments.  
16 characters (32 characters total).  
Field selectable as a Class A, B1, B2 , C , P or  
ESD for shutdown, alarm, or control function.  
VAC  
or  
Power Supply Enclosure: Explosion-proof,  
Class I, Division 1. Intrinsically safe barrier  
built into the power supply, 120 VAC with 7  
form “C” relay outputs for the following  
functions (with standard S1501):  
12 or 24 VDC. The head/monitor is rated intrin-  
sically safe and includes a communication port:  
RS232 or RS485 (Modbus RTU slave). This  
port allows for remote control functions such as  
Start/Stop, Load/Unload, etc., and for access to  
Series 1501 registers.  
Outputs: 7-SPDT relay outputs, 5 A, 1/16 HP,  
125/250 VAC/ 1 A, 30 VDC.  
NOTE: For hazardous areas an approved isola-  
tion barrier must be used between sensor switch  
and input terminals if the sensor output comes  
from any energy storing device such as a relay or  
transistor.  
Lube  
Load  
Crank  
Shutdown  
Alarm  
Fuel Valve  
Ignition/Motor  
S15-96122B page 1 of 2  
 

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