Johnson Controls MS-FEC2611 Series Installation Instructions Manual page 17

Table 3: FEC26 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block Label
ANALOG
(Outputs)
FEC26Field Equipment Controllers Installation Instructions
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Terminal Label
OUTn
OCOMn
Function, Ratings,
Requirements
Analog Output - Voltage
Mode (0–10 VDC)
10 VDC maximum output
voltage
10 mA maximum output current
Required an external load of
1,000 ohms or more.
Note: The Analog Output
(AO) operates in the
Voltage Mode when
connected to devices
with impedances
greater than 1,000
ohms. Devices that
drop below 1,000
ohms may not operate
as intended for Voltage
Mode applications.
Analog Output - Current
Mode (4–20 mA)
Requires and external load
between 0 and 300 ohms.
Note: The Analog Output
(AO) operates in the
Current Mode when
connected to devices
with impedances less
than 300 ohms.
Devices that fall below
300 ohms may not
operate as intended for
Current Mode
applications.
Analog Output Signal
Common for all Analog OUT
terminals.
Note: All Analog Output
Common terminals
(OCOMn) share a
common, which is
isolated from all other
commons.
Determine Wire Size and
Maximum Cable Length
See Guideline C in Table 4.
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