Honeywell HPF24S6 Installation Manual - Page 23

Programmable Features Description Programming Options vide synchronization timing pulses from a dedicated sync output connector. Connect the HPF24S sync input terminals to the FACP sync output connector instead of the FACP NAC. Note that the Synchronization Type configured by DIP switches 1 and 2 must be set to the same type as the signal being fed to the Sync Input circuit in the event that Selective Silence is employed. Important! In Slave Mode, if the Input is active, but no signal is present on the Sync Input circuit, the power supply will turn the NACs on steady until a sync signal appears. The NACs will turn off when the Input becomes inactive. Also in Slave Mode, if the Input is active and the Sync Input is suddenly lost (HPF24S or wiring failure), there will be a three second period when NAC outputs are indeterminate. After this three second period, the power supply will turn the NACs on steady until the Input becomes inactive. 3.2.3 AC Fail Delay/Aux. Trouble Relay Function The AC Fail Delay feature provides the option to delay generation of a trouble signal upon the loss of AC power. In addition, the operation of the Aux. Trouble Relay is altered. • DIP switch 4 set to the ON position will delay the generation of an AC Loss/brownout trouble signal for 2 hours. In addition, the Aux. Trouble Relay will immediately respond to all trouble conditions on the power supply. • DIP switch 4 set to the OFF position will allow the HPF24S to generate a trouble signal immediately on the loss of AC power. In addition, the Aux. Trouble Relay will respond only to AC power fail/brownout conditions. Refer to "Supervision of HPF24S Faults" on page 26, for operation of internal NAC trouble relay in response to AC loss. 3.2.4 Input/Output Function DIP switches 5 and 6 are used to determine the Input Control circuits that will activate the four output circuits and the function of the output circuits. For example, to configure a General Alarm operation in which Input Control Circuit #1 activates all four output NACs, DIP switches 5 and 6 are both set to the OFF position. In this configuration, the Sync Input circuit is ignored if the power supply is set as a Master but will be monitored if the supply is set as a Slave. In addition, if the Auxiliary Power output is set as a resettable output, the circuit connected to Control Input Circuit #2 will control the auxiliary power reset function. The following table details the four possible input/output configurations: DIP Switch 5 OFF OFF DIP Switch 6 OFF ON Input/Output Function General Alarm • HPF24S configured as Master (switch 3 OFF), NAC Outputs 1 through 41 are controlled by Control Input #1; Sync Input is ignored. • HPF24S configured as Slave (switch 3 ON), NAC Outputs 1 through 42 are controlled by Control Input #1; Sync Input is monitored2. • Resettable or nonresettable Auxiliary Power Output is available from TB4 Terminals 9 & 10. Control Input #2 determines if reset will occur (must go from On to Off for a minimum 6 second reset to occur). Split Alarm • HPF24S configured as Master (switch 3 OFF), NAC Outputs 1 & 2 are controlled by Control Input #1 and Outputs 3 & 41 are controlled by Control Input #2; Sync Input is ignored. • HPF24S configured as Slave3 (switch 3 ON), NAC Outputs 1 & 2 are controlled by Control Input #1 and Outputs 3 & 41 are controlled by Control Input #2; Sync Input is monitored2. • Only nonresettable Auxiliary Power is available from TB4 Terminals 9 & 10. Table 3.3 Input/Output Configurations HPF24S Series Power Supplies - P/N 52751:F2 7/11/2014 23