Atlas Copco QAC 1100 Sd, Instruction Manual, Page: 33 / 64

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(**) The power management system (PMS) allows the communication between Qc4002™ MkII modules over the CAN-bus.It is a totally intelligent system
that makes the generator start/load/stop depending on the real load and the load status of each generator.The installation can have over 16 Qc4002™ MkII
modules.If the mains current is included in the installation, an additional Qc4002™ MkII module is required.The installation can be monitored and controlled
by the PMS software package.For further information on this application, contact Atlas Copco.
1. Each installation has to be very carefully prepared and reviewed before the startup.Wrong or non complete connections may damage the installation!
2. Each application requires a specific combination of the following parameters:
- Auto / Semi-auto / Test / manual / Block mode.
- Type of applications Island /AMF / PS / FP / LTO / MPE / PMS / TM (in AUTO PS / FP / LTO mode can be combined with AMF).
- Activated/deactivated counter synchronization (parameter channel 7080).
The improper setting of parameters can seriously damage the electrical installation!
3. To be able to start at low temperatures, parameter 6181 (start preparation) can be changed to a higher value, in order to obtain a preheating stage.
Do not set this value at over 60 seconds in order to prevent damages.
4. For further information on Qc4002™ MkII module and its applications, refer to the Qc4002™ MkII user manual and the Qc4002™ application data
sheets. If further information is needed, contact Atlas Copco.
Installations with multiple generators
Type of application Mode Comments
SEMI-AUTO mode

Make the parallel connection manually between the generators
AUTO mode

Make the parallel connection manually between the generators
SEMI-AUTO mode The AMF operation will not run correctly!
AUTO mode PMS  QC4002TM MkII Mains module (**)
SEMI-AUTO mode PMS  QC4002TM MkII Mains module (**)
AUTO mode PMS  QC4002TM MkII Mains module (**)
SEMI-AUTO mode PMS  QC4002TM MkII Mains module (**)
AUTO mode PMS  QC4002TM MkII Mains module (**)
SEMI-AUTO mode PMS  QC4002TM MkII Mains module (**)
AUTO mode PMS  QC4002TM MkII Mains module (**)
SEMI-AUTO mode PMS  QC4002TM MkII Mains module (**)
AUTO mode PMS  QC4002TM MkII Mains module (**)
SEMI-AUTO mode PMS  QC4002TM MkII Mains module (**)
AUTO mode PMS  QC4002TM MkII Mains module (**)
Power management system
Island operation
AMF operation
Peak distribution
Fixed power
Load take over
Exporting network power