a)For Open Collector activations connect the open collector to the “IN” terminal and negative to the “GND” terminal.
b)For dry contact activation connect NO to “IN” terminal and C to “GND” terminal.
4.Output Connections
There are (4 or 8) individually configurable outputs possible: Switched Normally Open (NO), Switched Normally Closed (NC), Switched Isolated (“Form C”) dry contacts and
a)Switched Normally Open (NO) / Switched Normally Closed (NC) - Connect the negative
b)Switched Isolated Form “C” dry contacts - Connect the negative
c)
d)FACP input programming - To have relay activation follow FACP input place the dip switch corresponding to the desired relay to the “OFF” position. In the “ON” position, the relay will not be affected by FACP input
5.Fire Alarm Interface
Normally Open (NO), Normally Closed (NC) input or polarity reversal (R/POL) input from the FACP are available to trigger the HPACM4 and HPACM8 operation. Connect the positive (+) and negative
6.Engineering Reset Input
This option is available when the jumper JL is removed. This will cause the HPACM4 and HPACM8 to latch upon receiving an alarm condition from the FACP. With this option in place and when the FACP resets, the unit will only reset by activating the “RESET” circuit.
a)JL ON will cause the unit to follow the status of the FACP. Connect 2.2K Ohm resistor to the “RESET” terminals.
b)JL OFF will cause the unit to latch ON until manually reset. Install the 2.2K Ohm (EOL) resistor provided at a Key Switch or Push Button to perform this manual reset operation and to supervise this connection as shown in Fig 1.
7.Alarm/Trouble Output
a)TRBL: When DC Power fails or PTC activates this will cause the dry contact “Form C” relay to
b)FACP: When the FACP activates this will cause the dry contact “Form C” relay to
8.Cascade Connection
Two (2) or more HPACM4 or HPACM8 units can be connected together as follows; Connect the FACP relay C and NC terminals from the 1st unit to the “FIRE INPUT” of the 2nd unit (not polarity sensitive) and remove jumper JR of the 1st unit. If a 3rd HPACM4 or HPACM8 is used, JR must be removed from 2nd unit and so on for each new addition. See Fig. 1a.
9.Power Board Connections
Connect the “AC Fail” output “Form C” dry contacts to the monitoring device. In case of AC loss the relay, which is Fail Safe, will
10. Power Up
Continued on next page...
HP400ULACM4/8CB Installation Document P/N 52898:A 4/05/06 | 3 |