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8
EVOHD+ Installation Guide
Backup Battery
Connect a 12Vdc 7Ah rechargeable acid/lead or gel cell backup battery (YUASA model #NP7-12 recommended). Verify the polarity, as reversed connections will
blow the battery fuse.
Battery Test
When AC is present:
The control panel conducts a dynamic battery test under load once every 24 hrs if battery is present.
If the battery capacity is too low or if the battery voltage drops to 11.7V or less a “Battery Failure” message will appear in the Trouble Display. Battery low is restored
once capacity reaches 12V.
When AC is present and the battery is low, a battery test will be performed every 4 minutes instead of 24hrs.
When AC is not present:
The control panel conducts a battery test constantly to test the battery. If the battery capacity falls below 11.7V or less a “Battery Failure” message will appear in the
Trouble Display. If the capacity falls below 11V, the panel shuts down and all outputs close.
Auxiliary Power Terminals
The auxiliary power supply can power accessories in the security system. A fuseless circuit protects the auxiliary output against overload and shuts it down if the
current exceeds 2.5A. Auxiliary power will resume once the overload condition has restored.
Bell/Siren Output
The bell output supplies 12Vdc upon alarm and can support one 30-watt or two 20-watt sirens. The bell output will automatically shut down if the current exceeds
3A. If the load on the
BELL
terminals returns to normal (
3A), the control panel will re-instate power to the
BELL
terminals. Please verify correct polarity.
NOTE:
For connection of self-contained bell/siren, see Figure 5.
WARNING:
When the bell output is not used, the “Bell Absent” message appears in the Trouble Display. To avoid this, connect a 1k
resistor across the bell output.
UL Note: The keypads must be programmed to beep with all troubles.
Programmable Outputs
PGM2 to PGM4 are 100mA (max.) solid state relays with +/- trigger. PGM1 is an open collector output that can be used to monitor two wire smoke detectors. PGM5
is a 3A/28Vdc N.O./ N.C. relay output. They can be set at either normally open or normally closed. If the current draw on PGM1 to PGM4 is to exceed the current
output, we recommend using a relay as shown in Figure 2.
Figure 2: PGM and Relay
Keyswitch Connections
Connect the keyswitches to the keypad, control panel, or Zone Expansion Module's hardwired input terminals as shown in Figure 3.
Figure 3: Keyswitch
Access Control Connections
For all access control explanations and connection drawings, refer to
Summary of Contents for EVOHD+
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