APS 6RL Series, Руководство по эксплуатации

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DCS SERIES OPERATION MANUAL
SECTION 8: MASTER/SLAVE OPERATION
Entire Contents Copyright

2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual Page 191 of 204
8.2.1 Restrictions
Compared to normal operation of a single unit, master-slave operation has some restrictions:

The MS system reacts partly different in alarm situations (see below in section 8.2.6).

Using the Share bus makes the system react as dynamic as possible, but it is still not as
dynamic as single unit operation.

A unit configured as slave has limited operability (only access to MENU possible).
8.2.2 DC Input Wiring Parallel Mode
The DC Input of every unit in the parallel operation must be connected with correct polarity to
the next unit, using cables or copper bars with a cross section according to the total system
current and with the shortest possible length.
8.2.3 Wire Sizing for Share Bus
The Share bus must be wired from unit to unit using twisted pairs of cables with non-critical
cross section. Recommend wire size to use is 0.5 mm² to 1.0 mm².
Note: The Share bus is poled. Take care for correct polarity of the wiring!
Note: In order for the Share bus to work correctly, all DC minus outputs of the units must be
connected together.
Note: A maximum number of 16 units can be connected via the Share bus.
8.2.4 Wiring and set-up of the Digital Master/Slave bus
The master-slave connectors are built-in and can be connected via network cables (≥ CAT3,
patch cable). After this, M/S systems can be configured manually (recommended) or by remote
control. The following conditions applies:

A maximum of 16 units can be connected via the bus: 1 master and up to 15 slaves.

Only units of same kind, i.e. DC Load to DC Load, and of the same model, such as 6RL03-
170-80-2 to 6RL03-170-80-2.

Units at the end of the bus must be terminated (see below)
Note: The master-slave bus must not be wired using crossover cables!
Later operation of the MS system implies:

The master unit displays, or makes available to be read by the remote controller, the
sum of the actual values of all the units

The ranges for setting the values, adjustment limits, protections (OVP etc.) and user
events (UVD etc.) of the master are adapted to the total number of units. Thus, if e.g. 5
units each with a power of 5 kW are connected together to a 25 kW system, then the
master can be set in the range 0...25 kW.

Slaves are no operable as long as being controlled by the master