Overview Of The Operating Modes - GEA Grasso M-Series Operating Manual

Operating Manual | GEA Grasso M-Series
Screw Compressor Packages
9.3.1

Overview of the operating modes

Modes
Name
0 Service
1 Manual
+ Manual
2 Manual + Auto Manual Start/Stop via TP and full automatic local
3 Auto + Auto
4 Remote
+ HW (cont)
5 Remote
+ HW (pulse)
6 Remote
+ HW (loc.
SW)
7 Remote
+ HW (ext.
SW)
8 Remote
+ Net (cont)
9 Remote
+ Net (pulse)
GEA Refrigeration Germany GmbH | P_261511_1 | Generated 01.04.2015
Remark
Oil pump by itself
Compressor motor blocked
Manual control via Touch Panel (TP)
capacity control
Full automatic start/stop and local capacity control
Start/stop and capacity demand via digital contacts
(hardware) from a remote master controller. The GSC
TP derives from the continuous +/- signals the pulses
for capacity (indirect).
Start/stop and capacity demand via digital contacts
(hardware) from a remote master controller. The mas-
ter also generates the +/- signals as pulses for control-
ling the slide capacity directly.
Start/Stop from a remote master controller via digital
contacts (hardware). The GSC TP controls the output
depending on a local setpoint (TP) and from this set-
point also automatically switches the product ON/OFF.
Start/Stop from a remote master controller via digital
contacts (hardware). The GSC TP controls the output
depending on an external setpoint (analog input) and
from this setpoint also automatically switches the
product ON/OFF.
Start/stop and capacity demand via network from a
remote master controller. The GSC TP derives from
the continuous +/- signals the pulses for controlling the
capacity (indirect).
Start/stop and capacity demand via network from a
remote master controller. The master also generates
the +/- signals as pulses for controlling the capacity
directly.
Use, operation, control
Signal for ...
Start/Stop Capacity +/-
Manual Manual
Manual Auto
Auto Auto
External External
continuous
External External
pulses
External Local
+ setpoint Setpoint
deviation
External Remote
+ setpoint Setpoint
deviation
Network Network
continuous
Network Network
pulses
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