OPERATION | PAGE 20
4.13 INPUT SETS
The CEM7 control unit allows to dene up to 4 input sets depending on the value
of the digital inputs (Regulations table, parameters 38 to 41). The digital inputs
on which it is allowed to dene input sets are:
• IN 1. R: Fuel reserve (RC).
• IN 2. B: Low oil pressure. (BPA).
• IN 3. A: High temperature (ATA).
• IN 4. N: Water level (NA).
• IN 5. X: Programmable input 4 (default value, external start) (AE).
• IN 6. I: Programmable input 5 (default value, disabling start up) (IA).
• IN 7. P: Emergency stop (PEM).
• IN 8. 1: Programmable input 1.
• IN 9. 2: Programmable input 2.
• IN 10. 3: Programmable input 3.
• IN 11. S: Mushroom head emergency stop.
• IN 12. M: Ignition key (MAN).
• IN 13. Oil pressure sensor (P). Only enabled if the P input is congured
as a digital input (Regulations table, parameter 35, value 1 or 2).
• IN 14. Water temperature sensor (T). Only enabled if the T input is
congured as a digital input (Regulations table, parameter 36, value
1 or 2).
• IN 15. Auxiliary analog input (TC). Only enabled if the TC input is
congured as a digital input (Regulations table, parameter 37, value
1 or 2).
The CEM7 control unit allows to dene the state (active/inactive) of the selected
inputs to dene each one of the 4 input sets available (Regulations table,
parameters 42 to 45).
The input set dened through the inputs combination of the control unit can be
used both for the activation of any of the 20 programmable alarms (Settings
table, parameters 1 to 4, 24 or 41 to 45) and for the activation of the
programmable outputs of the control unit (Settings table, parameters 13 to 15,
22 to 23, 26 to 40).
PROGRAMMING
Enabling the genset in reserve function is performed by programming a control
unit parameter (Regulations table, parameter 31, values 4 to 7).
4.11 HEATER
DESCRIPTION
The screen of the control unit has a heater which allows it to work at low tem-
peratures. The control unit maintains a minimum screen temperature by means
of a heater, thereby ensuring that on-screen information can be refreshed.
PROGRAMMING
Enabling the reserve screen heater function is performed by programming a con-
trol unit parameter (Screen table, parameter 3, value 1). The minimum screen
temperature ensured by the screen heater is programmed through a control unit
parameter (Screen table, parameter 11).
4.12 TIMER
The CEM7 control unit has a timer that tells the control device the current time
and date. This device allows the weekly programming of:
• Scheduled start-ups.
• Scheduled locks.
• Scheduled engine tests and maintenance.
• Energy counters (day, month, year).
The maximum timer limit is 5 daily programs. The CEM7 control unit must be in
automatic mode in order to manage the incorporated programming.