5-4
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Section Topics
2308-900-01 Rev. A / July 2008
Section 5: Relay Control
Model 2308 Portable Device Battery/Charger Simulator User’s Manual
Figure 5-3
Relay connector (9-pin D-sub)
Controlling relays
The external relays (whether powered by the external or internal source) are controlled from the
main menus OUTPUT RELAYS menu item (the main menu is accessed by pressing the
MENU
key). Each of the four output relays can be controlled from this menu.
1. Press
the
MENU
key.
2. Press
▲
or
▼
keys to scroll to
OUTPUT RELAYS
.
3. Press
ENTER
to select.
4. Use
the or keys to move the blinking cursor through the available relays (1: 2: 3: & 4:).
Immediately following the relay number and colon is the relay control option. Set the relay
control options for each relay to a 1 or 0. Selecting a 1 closes the relay control circuit to
energize the relay; selecting a 0 opens the circuit to de-energize the relay.
5. Use
the
▲
and
▼
arrow key to toggle the blinking cursor’s value between 1 (close) or zero
(open).
Table 5-1
Relay pinouts (for
Figure 5-3
)
Pin
Connection
1
Relay 4
2
Relay 3
3
Ground
4
Relay 2
5
Relay 1
6
Ground
7
Suppression diodes
8
+5 VDC
9
Ground
NOTE
Table 1-3
shows the menu structure. Rules to navigate the menu follow the
table.
Pressing the
ENTER
key accepts the current configuration; pressing the
MENU
key cancels the changes and recalls the previous settings.
Setting a relay (1–4) to a 1 closes the relay control circuit (energizes the relay).
A 0 opens the circuit (de-energizes the relay).
5
1
9
6
4 3 2
8 7
▲
▲
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