Ingersoll-Rand Intellisys SSR 10-40, Руководство для обслуживающего персонала

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mentioned connection boards connect to the Intellisys controller through a
ribbon cable.
Other starter interface connections:
Terminal
1-2 24 volt supply
3-36 15 volt supply
BTS1 31-32 Manual Hats
29-30 Jumper (OPT phase monitor)
33-34 Emergency Stop Button
14-15 1M Interlock
12-13 1S and 2M Interlock
BTS2 10-11 Main OVL
8-9 Fan OVL
4 through 7 OPT Remote Stop/Start
J-1 5 Volt Supply Plug
4-35 Power on light 1LT
27-28 1M Coil
BTS1 25-26 2M Coil
23-24 1S Coil
19-20 Blowdown Solenoid
Watershut off/Coolant
17-18 Stop Solenoid
BTS1 15-16 OPT Remote Cooler Pressure Relief
4-35 Power on Light 2LT
Option Program Proms Sockets (4 each)
J-2 Communication Port
Test/Service/Sequencer
Other Analog Barrier Terminal Board Connections
3-4 Coolant Filter Delta P Switch
BTS3 5-6 Logic E Stop
7-8 Door Interlock
SSR 50-450 HP
SHUTDOWNS ON HIGH INLET VACUUM
All machines with Intellisys software 1.4 and lower will shutdown on high inlet
vacuum if the inlet valve closes and remains closed after Star Delta transition
causing the inlet vacuum to reach 13.8 psi vacuum.
If this situation occurs, there are several reasons that would cause the inlet valve
to remain closed.
1. Sticking or binding inlet valve
2. Starter Interface Board drive chips and circuit
3. Stepper motor and cable
4. Slipping or broken coupling
On machines with Intellisys software of 1.5 and higher, the high inlet vacuum
shutdown has been eliminated and the above situations would give a low sump
pressure shutdown.
If any of these problems exist, changing a 1.4 to a 1.5 Eprom will not correct the
problem, but it will give you a low sump pressure shutdown instead of a high inlet
vacuum shutdown. Check all mechanical areas of the butterfly valve. Loose
rivets, broken, misaligned, or loose coupling, stepper motor failure, or sticking
valve are all likely causing factors. Refer to the Confidential Field Service
Manual for troubleshooting procedures under LOW UNLOADED SUMP PRES-
SURE.
The 1.5 EPROM was developed with a number of changes. The changes that
concern the people in the field are as follows:
1. Removed the need for a unit to have to get smart after 500 loaded
hours.
2. After the unit is started and through transition, the Intellisys will monitor
the sump pressure. If the sump pressure rises to within 20 psi of the
rated pressure, the inlet valve will close to the smart position. This is
to prevent blowing of the safety valve if the isolation valve is closed on
initial start up.
3. Remove the HIGH INLET VACUUM alarm.
4. Make the machine compatible for use with a sequencer system.
“CHECK INLET CONTROL” - ALARM
This alarm is the result of the inlet valve not being closed far enough.
The alarm can happen when:
1. The inlet vacuum is less than 3 psi.
(Note: Items 2-5 are the possible causes of Item 1. Normally, the inlet
vacuum is much higher when the unit is running unloaded.)
2. When the unit is unloaded and the lower limit switch is made.
3. The coupling reaches the limit switch but the valve plate does not
because the coupling position is off.
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