Himoinsa CEM7 User Manual

CEA7 CONTROL UNIT INPUTS AND OUTPUTS | PAGE 21
TARIFF WARNING SIGNAL (EJP1)
This function is only managed in automatic mode of the CEA7 control unit. The
input congured as tariff warning (Settings table, parameter 7) starts the genset
after activating the corresponding input and after a set time (Times table,
parameter 9). Completion of the tariff ends when the input EJP1 is disabled,
stopping the engine with cooling.
TARIFF CHANGE SIGNAL (EJP2)
This function is only managed in automatic mode of the CEA7 control unit.
The input congured as tariff change (Settings table, parameter 8) activates the
genset contactor provided that no fault is found in the genset.
DISABLING START UP SIGNAL (IA + ENT5)
This function is only managed in automatic mode of the CEA7 control unit.
The input congured as disabling start up (Settings table, parameter 9) prevents
the genset from starting under any starting condition except forced operation
(Settings table, parameter 12) congured as high priority (Regulations table,
parameter 25).
EXTERNAL START SIGNAL (AE + ENT4)
This function is only managed in automatic mode of the CEA7 control unit.
The input congured as external start (Settings table, parameter 10) forces the
start up of the genset if it is in automatic mode, provided none of the following
conditions are present disabling start up:
• The control unit does not manage the disabling start up input (IA) or
it is not active.
• The control unit is not in lock mode programmed by time.
A delay in starting the genset can be congured through an external input via a
parameter (Regulations table, parameter 31).
5.2 PROGRAMMABLE INPUTS
The measurements module of the CEA7 control unit has 5 digital inputs (ENT1,
ENT2, ENT3, ENT4, ENT5) which operation can be programmed. In addition, the
analog inputs of the control unit P, T and TC can be congured to operate as
digital inputs (Regulations table, parameters 35, 36 and 37). The programmable
purpose inputs can be congured to behave as follows:
CONFIRMATION OF NETWORK CONTACTOR (CKR)
The input congured as network contactor conrmation (Settings table, parameter
5) is used to verify the correct activation of the network contactor. Upon activation
of the network contactor, a time interval begins (Times table, parameter 13) for
verication of the contactor through the activation of the network contactor
conrmation input. If after this time has elapsed there is no conrmation of the
activation of the network contactor and the control unit does not detect a network
failure alarm, a network contactor alarm is generated (Alarms table, parameter
100). If the control unit is operating in automatic mode, the genset is started
with activation of the genset contactor for the supply of the installation.
GENSET CONTACTOR CONFIRMATION (CKG)
The input congured as genset contactor conrmation (Settings table, parameter
6) is used to verify the correct activation of the contactor. Upon activation of the
genset contactor, a time interval begins (Times table, parameter 13) for
verication of the contactor through the activation of the genset contactor
conrmation input. If after this time has elapsed there is no conrmation of the
activation of the genset contactor, a genset contactor alarm is generated (Alarms
table, parameter 102). If the control unit is operating in automatic mode, a stop
occurs with engine cooling and activation of the genset contactor if it is within
the valid operating parameters.

Himoinsa CEM7 Specifications

General

Brand	Himoinsa
Model	CEM7
Category	Control Unit
Language	English