DSE Model 7560 ATS and Mains Controller Operators Manual
50 057-017 7560 OPERATING MANUAL ISSUE 10.2 10/02/09 AM
8 COMMISSIONING
8.1.1 PRE-COMMISSIONING
Before the system is started, it is recommended that the following checks are made:-
6.1. The unit is adequately cooled and all the wiring to the module is of a standard and rating
compatible with the system.
6.2. The unit DC supply is fused, connected to the DC supply and that it is of the correct polarity.
6.1. To check the start cycle operation, fully test all 7510s that are on the system, ensuring that
the breakers will only close when it is in synchronism with the bus or a dead bus is present.
After a visual inspection to ensure it is safe to proceed, make sure that the 7510s on the
system are in Auto mode. Press the “MANUAL” pushbutton, and then press the ‘START’
pushbutton for a short time. The unit will issue a start to all the 7510s that are available and in
Auto mode.
6.2. The first generator to start will close onto a dead bus; the remainder will synchronise and
close as they reach running conditions. The generators will then run in parallel sharing zero
KW and zero VAr
6.3. Select “AUTO” on the front panel, the system will run for the pre-set return delay, all the
generator breakers will then open and all generators will cool down for their pre-set cooling
time before stopping. The 7560 will stay in the standby mode. If not, check that there is no
signal present on the Remote Start input, and that the mains is within acceptable parameters.
6.4. Initiate an automatic start by supplying the remote start signal. The start sequence will
commence and once the pre set number of generators is running in parallel, the 7560 will
synchronise the bus to the mains and the Bus breaker will be closed. The load will be ramped
on to the Bus until the pre-set KW and KVAr levels have been reached.
6.5. Remove the remote start signal, the return sequence will start. After the pre-set return time
has elapsed, the load will be ramped off the Bus and the Bus breaker will be opened once the
Bus load has reached zero. The generators will then run for the pre-set cooling down period,
and stop.
6.6. Now the mains fail test can be carried out. Fail the mains and the system should start, the
mains breaker will open and then the Bus breaker will close.
6.7. When the mains returns, the Bus will be synchronised to the mains after the return time has
expired and the Bus breaker will close. The Bus power will be ramped to the pre-set level,
then to zero. Once the Bus power is down to zero the Bus breaker will open and the
generators will be stopped after their cooling time has expired.
CAUTION!:- Before any breaker is closed onto a live system for the first time, extensive
checks must be carried out to make sure that the breaker will not close out of synch.
6.8. If despite repeated checking of the connections between the 7560 and the customer’s system,
satisfactory operation cannot be achieved, then the customer is requested to contact the
factory for further advice on:-
INTERNATIONAL TEL: 44 (0) 1723 890099
INTERNATIONAL FAX: 44 (0) 1723 893303
LO-CALL (UK only) Tel. 0845 260 8900
LO-CALL (UK only) Fax. 0845 260 8901
E-mail: [email protected]
