Manual EM-box 3
Hardware 3.1 - REV 3B - JAN 20
Page 10
3.
Installation
The following parts are required to install the EM-box:
a) Fuses for the consumer outputs (pin fuse type SHB, not included in delivery)
Connection 6 (vehicle electrical system): (bolt fuse SHB 30, 50, 75, 125, 200 A)
Connection 7 (Combination Inverter) (bolt fuse SHB 125, 200 A)
Connection 8 (bow battery) (bolt fuse SHB 50, 75, 125 A)
b) If cable lengths from EM-box to battery > 1m are used, an additional main fuse (fuse holder SHD plus STS 200 A or
stud fuse holder SHB, suitable for the cable cross-section) must be installed at the positive pole of the service battery.
c) Temperature sensor TEMP-BT for recording the battery temperatures (optional)
d) PSM system monitor for configuration and display of all operating parameters of the EM-box
e) M12 P-BUS cable for data connection to the system monitor
3.1 Safety before installation
- Important:
The EM-box should generally be mounted outside the engine compartment in an "easily accessible"
location to allow "safe manual operation" from the remote battery disconnectors.
- Install the EM-box in a dry and ventilated place. Do not mount the EM-box upside down to prevent liquids from
entering the EM-box via terminals X1-4.
-
Important
: Disconnect the pole terminals on the batteries during installation to protect against short circuits during
installation!
- Observe the polarity of the batteries and consumer lines. Batteries and consumers connected with reversed polarity
cannot be detected by the EM-box and can lead to the destruction of the EM-box and consumers or to dangerous
short-circuit currents!
- Before connecting the first battery to the EM-box, check the correct polarity and nominal voltage 12V or 24V on the
connecting leads.
- To facilitate installation, the nuts on the connecting bolts are not tightened on delivery.
- All nuts on the high current connections must be tightened firmly with a pipe socket wrench SW13!
- If the connections are not used, the nuts must also be tightened firmly.
3.2 High current connection at the EM-box (bolt 1-8)
Important:
On the left side all minus cables are connected, on the right
side are all plus cables. Mixing up the plus and minus connections of the
batteries will destroy the internal protection diodes against overvoltage
and may subsequently lead to the failure of the EM-box functionality!
The bolt fuses type SHB at the conne6, +7, +8 are mounted
according to figure 3.1.
First the bolt fuse is inserted and then the cable lugs are attached. Up to
2 cable lugs can be fitted as shown.
Abbildung 3.1: installation of bolt fuse