Himoinsa CEC7 User Manual

CEC7 CONTROL UNIT INPUTS AND OUTPUTS | PAGE 18
NOTE
Activation of the genset contactor is performed with a programmable time after
detecting that the engine is in operation (Table times, parameter 6), it being
possible to dephase the activation of both outputs —the genset contactor and
programmed output in STABILIZED ENGINE mode— by programming the
parameter.
Neutral to earth switch output.
The earth switch output of the CEC7 control unit is assigned to the SC relay
output which is responsible for isolating the generator set neutral from the
earthing of the installation during the time of simultaneous activation of genset
and network contactors during synchronization. The allocation of the stabilized
genset electrical signal function to the SC output is carried out by programming
the control unit (Synchronization table, parameter 1 value 2).
6.3 PROGRAMMED DIGITAL OUTPUTS
The CEC7 control unit has 3 specic-purpose outputs . The functioning of these
outputs is preset by default values but can be modied by setting the control
unit.
Network contactor output (CR) - Relay output
The network contactor output (CR) of the CEC7 control unit is a relay output that
manages the closing and opening of the network contactor.
Genset contactor output (CG) - Relay output
The genset contactor output (CG) of the CEC7 control unit is a relay output that
manages the closing and opening of the genset contactor.
Genset start-up (LT) - Relay output
The engine start-up output (LT) of the CEC7 control unit commands the generator
set start-up via a voltage free output. This start-up mode is useful for integrating
the CEC7 transfer switch controller with generator sets controlled by control units
without communication.
6.4 PROGRAMMABLE OUTPUTS
The CEC7 control unit has 1 programmable relay output (SC) with operation which
can be congured to indicate certain states (Synchronization table, parameter 1).
The possible congurations that are permitted with the programmable outputs
are:
Output of stabilized genset electrical signal
The stabilized genset electrical signal output from the CEC7 control unit is
activated once the stabilization time of the genset electrical signal has elapsed
after the genset start-up is detected (Times table, parameter 7) and remains
active until the generator set engine stops after the cooling time (Times table,
parameter 11). The allocation of the stabilized genset electrical signal function to
the SC output is carried out by programming the control unit (Synchronization
table, parameter 1 value 0 and 1).

Himoinsa CEC7 Specifications

General

Brand	Himoinsa
Model	CEC7
Category	Control Unit
Language	English