Operating Modes; Eco Mode; Maintenance Bypass (Swmb) - Gtec CPS 6 Handbuch

O M
PERATING ODES
There are four possible operating modes:
➢
ON LINE
INTERRUPTION-FREE MODE: The load is supplied constantly by the CPS inverter (always supplied "AS"
output). In the event of power supply failure the battery provides power to the inverter, ensuring the required
runtime with no interruptions at all). This mode provides maximum protection for the load by making use of "dual
conversion" technology.
➢

ECO MODE

WITH SWITCHING: The load is supplied via the CPS bypass line (always supplied"AS" output). In the event of
power supply failure the internal automatic device transfers the load to the inverter. The battery provides power
to the inverter, ensuring the required runtime.
This mode ensures increased efficiency; however, any interference in the mains power may affect the load. In
the event of mains power failure or power values out of tolerance, the CPS will switch to INTERRUPTION-FREE
MODE. Approximately five minutes after mains power returns within tolerance, the load is switched back to
bypass.
➢
EMERGENCY ONLY
WITH-SWITCHING MODE WITH ADDITIONAL MANOEUVERING DEVICE FOR CENTRAL LOAD
TRANSFER: The load is not supplied when mains power is available. If mains power is interrupted the CPS
cuts in and supplies the load from the inverter using the batteries, and then shuts down once again when mains
power is restored (emergency only "EO" output type)
M B
AINTENANCE
WARNING: Maintenance work inside the CPS is to be performed exclusively by qualified staff. Inside
the CPS there may be a voltage present even when the input, output and battery switches are open.
Removal of the CPS panels by non-qualified staff may result in injury to the operator and damage the
equipment.
Below is a list of the operations to be performed in order to carry out maintenance work on the equipment without
shutting off the power supply to the load:
➢
The CPS must power the load via the automatic bypass or the inverter, with the mains voltage present.
N.B.: If the CPS is in battery power mode, activating the maintenance bypass entails shutting off the power
supply to the load.
➢
Close the maintenance bypass isolator (SWMB) situated behind the door: in this way, the input is short-circuited
with the output.
➢
Open the input switches (SWIN), output switches (SWOUT) and battery fuse holders (SWBATT) situated behind
the door: The signal panel is turned off. Wait for the electrolytic capacitors on the power board to discharge
(about 15 minutes) and then proceed to perform the maintenance operations.
N.B.: During this phase, with a load powered via the maintenance bypass, any disturbance on the power supply
line of the CPS will affect the devices powered (The load is connected directly to the mains. The CPS is no
longer active).
Having completed the maintenance operations, proceed as follows to restart the CPS:
➢
Close the input and output isolators, and the battery fuse holders. The signal panel is reactivated. Turn on the
CPS again from the "SYSTEM ON" menu. Wait for the sequence to be completed.
➢
Open the maintenance bypass: the CPS resumes normal operation.
(SWMB)
YPASS
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