Frick QUANTUM - Oil Safety Logic; Part 1: Missing Oil Pressure; Part 2: Insufficient Main Oil Pressure During Low Differential

FRICK
®
QUANTUM™ COMPRESSOR CONTROL PANEL S90-010 O
OPERATION Page 99
OIL SAFETY LOGIC
Part 1: Missing Oil Pressure
OIL SAFETY LOGIC
Part 2: Insufficient Main Oil Pressure During Low Differential
B
Reset
t
1
= 0
A
P
oil
< [1.1 x
P
suct
] + 15
t
1
> 25 sec.
Yes
t
1
+ 1
Yes
ALARM
t
1
> 2 min.
CUT OUT
No
Yes
No
No
Missing Oil Pressure
Alarm
B
Reset
t
2
= 0
A
P
oil
< P
suct
] +
15
t
2
> 25 sec.
Yes
t
2
+ 1
Yes
CUT OUT
No
No
Missing Oil Pressure
Shutdown
B
t
3
+1
Sv < 40%
No
No
CUT OUT
Insufficient Main Oil
Pressure Shutdown
Yes
Sv > 50%
Yes
Inhibit
Load
Force
Unload
t
3
> 3 min.
Yes
No
Allow Load
P
oil
> [1.5 x
P
suct
] + 15
Yes
Reset
t
3
= 0
No
C