Johnson Controls Metasys VMA1610 Installation Instructions Manual page 8

Table 1: I/O Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block Terminal
Label Labels
BINARY OUTn
(Outputs)
OCOMn
CONFIGURABLE OUTn
(Outputs)
OCOMn
1 See Table 2 to determine wire size and cable lengths for cables other than the recommended cables.
Table 2 defines cable length guidelines for the various wire sizes that may be used for input and output wiring.
VMA1610 and VMA1620 Variable Air Volume Controllers Installation Instructions
Function, Ratings, and Requirements
Binary Output - 24 VAC Triac (Internal Power)
Sources internal 24 VAC power (24~ HOT)
Binary Output - 24 VAC Triac (Internal Power)
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
Maximum 6 cycles/hour with M9220-BGx-3
40 mA minimum load current
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
External 1k to 50K ohm load required
Binary Output 24 VAC Triac
Connects OUT to OCOM when activated.
External Power Source:
30 VAC maximum voltage to load
0.5 A maximum output current
1.3 A at 25% duty cycle
Maximum 6 cycles/hour with M9220-BGx-3
40 mA minimum load current
Analog Output Signal Common: All Configurable Outputs
defined as Analog Outputs share a common, which is
isolated from all other commons except the Binary Input
common.
Binary Output Signal Common: All Configurable Outputs
defined as Binary Outputs are isolated from all other
commons, including other Configurable Output commons.
To Determine Wire Size and
Maximum Cable Length
See Guideline C in Table
See Guideline A in Table
See Guideline C in Table
Same as (Configurable) OUTn.
2.
2.
2.
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