Honeywell HC900 Reference Manual page 70

Function Blocks
ALT Alternator Function Block
- block's style setting maintained
- all outputs turned off
- the STI output pin set to OFF.
^ADV = used with all styles except Direct. If "Activate Advance" selected in configuration, an OFF to ON
transition will rotate the output order selection.
DRDYS = digital encoded device-ready signal, usually the bit encoded output of the Digital
Encoder Block (DENC) representing 16 digital states. No signal = 0
Bit 1 = OUT 1, Bit 16 = OUT 16
Example: If bit 3 is ON, "OUT 3" is enabled and its state can turn On/Off based on the Alternator
Sequence. If bit 3 is OFF, "OUT 3" is disabled. Out 3's state will change to OFF.
Outputs
OUT1 – OUT16 =. Sixteen digital outputs, which turn ON and OFF based on the input demand
[IN1-16]. Outputs can be manually disabled by way of the Outputs tab in the block properties.
Outputs can be programmatically disabled by the use of the "DRDYS" input pin.
ODIS = ON when any one of the outputs (OUT) is manually disabled, otherwise OFF
IDIS = ON when any one of the inputs (IN) is manually disabled, otherwise OFF
STI = ON when the block state is RUN; OFF when the block state is OFF.
Configurable Parameters
The Alternator properties dialog box is divided into four tab cards:
GENERAL
INPUTS
OUTPUTS
SEQUENCE ORDER
Click on the tab to access the properties for that tab.
56 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07