System Interface Card - Terminals & Pin-Out; Lvd Latching Contactors - Eltek Minipack Quick Start Manual

Internal Connections
System Interface Card ~ Terminals & Pin-out
Minipack systems are shipped from factory with the CON5 signals already connected.
Some of the Smartpack controller's internal system signals are accessible on D-Sub connector
CON5, on the controller's rear panel.
Using a standard 15 pins D-Sub cable, the signals on CON5 are routed to the Minipack system's
main circuit board. See the figure in this section for an overview of the signals on CON5,

LVD Latching Contactors

Minipack systems' LVBD and LVLD functionality (Low Voltage Battery Disconnect; LV Load
Disconnect) is implemented by the Smartpack controlling magnetically latching contactors.
The coil of latching contactors is not energized in any state. They change state from open to
close, or vice versa, when a reversed pulse is applied to the coil.
Latching Contactors, LVD1 & LVD2
A latching contactor changes state only when a
reversed pulse voltage is applied to its coil
+ Pulse
Minipack
Main PCB
+
X:*****
8
9
10
11
—
Smartpack
controller
Minipack PS System (internal)
Correct Use of Latching Contactors (example)
Quick Start Guide Minipack PS System
Smartpack
controller
5 1
15 11
CON5
Load Fuse Fail 1
(female; orange)
Load Fuse Fail 1
c
*Batt Fuse Fail 1
d
*Batt Fuse Fail 1
System Reference
System
Connections
OFF
ON
- Pulse
LVD1A
X
Latching
Contactor
LVD1
Y
LVD Common
LVD2A
X
Latching
Contactor
LVD2
Y
LVD Common
356808.103, v1-2006-12
Miscellaneous
CON5
15 pins D-Sub (female)
FUNCTION SIGNAL PIN-OUT
LVD1A +/− 1
LVD2A +/− 2
LVD Common +/− 3
System Voltage + 4
−
System Voltage 5
a
*Batt Current 1 + 6
b
−
*Batt Current 1 7
NC 8
+ 9
Power Input + 10
−
11
+ 12
−
13
14
−
Power Input 15
Latching Contactor
Connections
Warning! The bidirectional
diode must always be
mounted to avoid dam-
aging the controller.
Y
Bidirectional
diode
X
19