DANA SUMO TM4 - Figure 15 Auxiliary Battery - Fuse Block Diagram; Table 11 Auxiliary Battery - Steady State and Inrush Currents; Table 12 Auxiliary Battery - Fuse Specifications; Connecting the Auxiliary Battery to the MCU

Installation Guide
CONFIDENTIAL
TG-0259_9 TM4 CO200-A3 Installation Guide
© Dana TM4 inc., 2020-2022
Page 35 of 42
4.5.9 Connecting the auxiliary battery to the MCU
Carefully read all safety instructions related to electrical installation (Section 4.5.1) before connecting the
auxiliary battery.
The auxiliary battery is required to power the MCU. The negative terminal of the battery must be connected
to the frame of the vehicle (chassis).
To protect the system against short circuit, add a fuse in series with the positive terminal of the auxiliary
battery. See Table 11 for MCU current information; Table 12 for fuse specifications and Figure 15 for the
fuse block diagram.
Table 11 Auxiliary battery – Steady state and inrush currents
Specifications
Units
Values
(12 V)
Values
(24 V)
Notes
Maximum MCU steady state current
A
4.5
3
1, 2
Maximum MCU inrush current
A
< 10
< 10
1
Maximum MCU quiescent current
mA
< 1
< 1.5
1
Notes:
1. Typical values are given at 25 °C.
2. Vehicle at maximum speed.
Table 12 Auxiliary battery – Fuse specifications
Specifications
Units
Values
(12 V/24 V)
Current rating
A
10
Fuse type
-
Fast-acting
Figure 15 Auxiliary battery – Fuse block diagram