Connecting The Remote Maintenance Bypass - Gtec CPS 6 Handbuch

C
ONNECTING THE
An additional maintenance bypass may be installed on a peripheral switchboard, for example, to enable the CPS to be
replaced without interrupting the power supply to the load.
It is absolutely essential to connect the "SERVICE BYPASS" terminal (see "View of CPS connections"
ref. 17) to the auxiliary contact of the SERVICE BYPASS switch. Closing the SERVICE BYPASS switch
(4) opens this auxiliary contact which informs the CPS that the maintenance bypass has been
activated. If this connection is not present, the power supply to the load may be shut off and the CPS
damaged.
NOTES: Use cables with a cross section that conforms to the indications given in "Cross Section of the Cables ".
Use a double insulated cable with a cross section of 1mm2 to connect the "SERVICE BYPASS" terminal to
the auxiliary contact of the remote maintenance bypass isolator.
Whenever the CPS is equipped with internal isolation transformer, check the compatibility between the
"remote maintenance bypass" and the neutral arrangement in the electrical plant.
DIAGRAM SHOWING REMOTE INSTALLATION OF THE MAINTENANCE BYPASS
Peripheral electric control panel
CPS internal connections
LINE switch: magneto-thermal switch compliant
with the indications given in the "External
Protection Devices" section.
NOTE: For installation with single phase
input, use a bi-polar magneto-thermal switch
INPUT switch:
indications given
Protections" section.
NOTE: For installation with single phase
input, use a bi-polar disconnecting switch
R M
EMOTE AINTENANCE
switch compliant with
in the "CPS Internal
B
YPASS
OUTPUT switch: switch compliant with the
indications
Protections" section.
SERVICE BYPASS switch: disconnecting switch
compliant with the indications given in the "CPS
Internal Protections" section, complete with
auxiliary contact that is normally closed
LINE BYPASS switch: magneto-thermal switch
compliant with the indications given in the "CPS
External protection devices" section
the
BYPASS INPUT switch: switch compliant with
the indications
Protections" section
- 81 -
given in the "CPS
"CPS
given in
Internal
Internal