FW Murphy Selectronic S1501 series, Инструкция по установке и эксплуатации

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Section 50 00-02-0271
2018-10-23 - 2 -
Control Relays
The power supply has seven control relays to provide form “C” SPDT outputs for control
functions of either the engine or electric motor application.
Terminal Block Assembly
Each sensor input terminal block consists of a 64-position, 32 pair input rail-mount terminal
block for interface of panel or field-mounted end devices. For Class I Division 1 areas, end
devices must be non-energy storing devices, such as mechanical switches with dry contacts.
The terminal block is used for Normally Open sensors (one wire close to ground), and/or
Normally Closed sensors (two wires).
Ribbon Cable
A 36 in. (914 mm) flat ribbon cable is required for connection of the S1501 head and the
sensor input terminal block. The cable is supplied with two D-sub 37 PIN connectors at each
end of the cable.
Power and Control Cable
The S1501 is connected to the power supply via the Power and Control Cable
(15-conductor shielded cable, 72 in. [1.81 m] long). The cable is factory-sealed on the power
supply end, and has a 15-pin, D-sub connector on the S1501 Head end.
Sensor Inputs
User-selectable Sensor Input types (Shutdown or Alarm Only) are available for each sensor.
The sensor inputs are identified as follows:
Class A: Inputs are operative (armed) all the time.
Class B1: Inputs are enabled after the first preset Start-Run time period.
Class B2: Inputs are enabled after the second preset Start-Run time period.
Class C: Inputs are armed after the fault has been cleared for 2 seconds.
Class P: Armed after the Load Relay has exergized and the process time has expired.
Class ESD: Emergency Stop overrides the test lockout timer.
Permissive Function
This function was designed to monitor pre-lube pressure input. Terminal 32 of the sensor
terminal block is reserved for a permissive pre-lube input. The pressure signal can be obtained
from a pressure switch with normally open or normally closed contacts that indicates whether
or not sufficient oil pressure has been reached during pre-lubing. If permissive pressure has
not been reached, the system will not allow start-up. If the Permissive Function is not required,
install a wire jumper in Terminal 32 and set the Permissive Timer setting at zero.