Himoinsa CEM7 - Page 11

OPERATION | PAGE 11
4. OPERATION
4.1 STARTING THE ENGINE
Under the conditions for activating the control unit, proceed to perform the
following engine start procedure:
4.1.1 DIESEL ENGINE
1. Start delay. Once activation conditions are detected, it is possible to program
a time delay (Times table, parameter 3) before continuing the engine start up
procedure only in automatic (CEM7 + CEC7 or CEM7 + AE).
2. Preheating of the motor (PR). The control unit activates preheating output
(PR) for the programmed time (Times table, parameter 4). The control unit allows
programming of a temperature threshold (Thresholds table, parameter 48) of the
coolant sensor that interrupts the preheating process, before proceeding with
the engine start up.
3. Enabling the starting of the motor (positive contact activation). Enabling the
starting of the motor (positive contact activation) is performed via the
measurements module PC output. The output supports a Stop by De-energisation
conguration (output activation during engine operation) or Stop by Excitation
(engine stop pulse -Table times, - parameter 12). The operating mode of the
enabled output can be set (Times table, parameter 18).
For groups with engine conguration by De-excitation Stop (Regulations table,
parameter 18, value 0), there is a 2.5 second engine delay between the engine
being enabled and the activation of the start-up: the delay is reduced to 0.5 sec-
onds unless the Immediate Start-up conguration is activated (Regulations table,
parameter 31).