Johnson Controls FX-PCV1656, Руководство по установке, Страница: 4 / 13

Table 1: I/O Terminal Blocks, Functions, Ratings, Requirements, and Cables
To Determine Wire Size
and Maximum Cable
Length
1
Function, Ratings, and Requirements Terminal
Labels Terminal Block Label
Same as (Universal) INn . 15 VDC Power Source for active (3-wire) input
devices connected to the Universal INn terminals.
+15 V UNIVERSAL
(Inputs) Note: Use 3-wire cable for
devices that source
power from the +15 V
terminal.
Provides 35 mA total current.
See Guideline A in Table 2 . Analog Input - Voltage Mode (0–10 VDC) INn
10 VDC maximum input voltage
Internal 75k ohm Pulldown
See Guideline A in Table 2 . Analog Input - Resistive Mode (0–600k ohm)
Internal 12 V, 15k ohm pull up
Qualified Sensors: 0–2k potentiometer,
RTD (1k Nickel [Johnson Controls sensor],
1k Platinum, and A99B Silicon Temperature
Sensor)
Negative Temperature Coefficient (NTC) Sensor
10K Type L (10K Johnson Controls Type II is
equivalent to Type L) or 2.252K Type II
See Guideline A in Table 2 . Binary Input - Dry Contact Maintained Mode
1 second minimum pulse width
Internal 12 V, 15k ohm pull up
Same as (Universal) INn . Universal Input Common for all Universal IN
terminals
ICOMn
Note: All Universal ICOMn terminals share a
common, which is isolated from all other
commons.
See Guideline C in Table 2 . Binary Output - 24 VAC Triac (Internal Power) OUTn BINARY
Sources internal 24 VAC power (24~ HOT) (Outputs)
See Guideline C in Table 2 . Binary Output - 24 VAC Triac (Internal Power) OCOMn
Connects OCOMn to 24~ COM when activated.
Internal Power Source:
30 VAC maximum voltage to load
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
4 FX-PCV1656 Programmable VAV Box VAV Controllers Installation Instructions