Johnson Controls MS-FEC2621-0 User Manual

Table 3: Terminal blocks, functions, ratings, requirements, and cables
Terminal block label Terminal label Function, ratings, requirements
Determine wire size and maximum cable
length
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.
OUTn
Analog Output - Current Mode (4–20 mA)
Requires and external load between 0–300
ohms.
Note: The AO operates in Current
Mode when connected to devices
with impedances less than 300 ohms.
Devices that exceed 300 ohms may
not operate as intended for Current
Mode applications.
ANALOG
(Outputs)
OCOMn
Analog Output Signal Common for all
Analog OUT terminals.
Note: All Analog Output Common
terminals (OCOMn) are isolated from
all other commons.
See Guideline C in Table 4.
OUTn
Binary Output - 24 VAC Triac (External
Power Source)
Connects OUTn to OCOMn when activated.
External Power Source Requirements:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
BINARY
(Output)
Power Selection Jumper
positioned to External
(EXT) power.
OCOMn
Binary Output Common (for OUTn
terminal)
Note: Each Binary Output Common
terminal (OCOMn) is isolated from
all other commons, including other
Binary Output Common terminals.
See Guideline C in Table 4.
OUTn
Binary Output - 24 VAC Triac (Internal
Power Source)
Sources internal 24 VAC power (24~ HOT).
BINARY
(Output)
Power Selection Jumper
positioned to Internal
(INT) power.
OCOMn
Binary Output - 24 VAC Triac (Internal
Power Source)
Connects OCOMn to 24~ when activated.
Internal Power Source:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
See Guideline C in Table 4.
FEC26 Field Equipment Controllers Installation Guide 9

Johnson Controls MS-FEC2621-0 Specifications

General

Brand	Johnson Controls
Model	MS-FEC2621-0
Category	Controller
Language	English