GEA Grasso - Page 153

Grasso
Refri
g
eration Division
GRASSO SYSTEM CONTROL
01.2003/0 638660E_chapter8.doc Kap.8 - 5
Digitale outputs
 0.7 — 0.0
 SET
0.7 — 0.0: Status of the digital outputs 0.0 through 0.7 (0.0 at the
right hand side)
SET: Status of the digital outputs 0.0 through 0.7 (0.0 at the
<< Service >> right hand side)
Digitale outputs
 1.7 — 1.0
 SET
1.7 — 1.0: Status of the digital outputs 1.0 through 1.7 (1.0 at the
right hand side)
SET: Status of the digital outputs 1.0 through 1.7 (1.0 at the
<< Service >> right hand side)
Step 
Min  Dn 
Max  Up 
Step: Actual capacity step (0…16)
Min: Minimum capacity step
Max: Maximum capacity step
<< Service 01 >> Dn: Next capacity step down
Up: Next capacity step up
PHImin  max 
Pint  (calc.)
OK

PHImin: Calculated minimum ϕ-value
max: Calculated maximum ϕ-value
Pint: Calculated minimum intermediate pressure in bar (a)
<< Service 01 OK: Indication if a step is enabled: 1 = enabled (step 1
through 16 are displayed from right to left)
8.2.3 Operating mode „Service“
In this operating mode the compressor control is blocked and all digital outputs can be set manually.
) There all digital outputs can be activated, the compressor motor start output can also be set. This is
allowed if no coupling is mounted, to test the rotation direction of the motor, or if the motor fuses are
removed! Otherwise the compressor is running without the GSC safeties.
In order to activate this operating mode select the “Operating mode” menu by pressing the key and select
the operating mode „Service” using the
and or keys.