Product Overview

FlexStat (General) 14 Application Guide, Rev S
Network Wiring
CAUTION
To avoid damage from ground loops and other communication
issues in networked FlexStats, correct phasing on MS/TP network
and power connections on ALL the networked controllers is
critically important.
Ethernet/IP and MS/TP Network Connections
For Ethernet or IP communications, plug an Ethernet cable into the
RJ-45 jack on the back of the FlexStat.
Relay 3 (or 6/9)
SC 1–3 (or 4–6/7–9)
Relay 2 (or 5/8)
Relay 1 (or 4/7)
One Switched
Common
Connection
Per Bank of
Three
Normally
Open Relays
CAUTION
Do not mistakenly connect 24 VAC to an analog output ground.
This is not the same as a relay’s switched common. See the
backplate’s terminal label for the correct terminal.
CAUTION
Relays are for Class-2 voltages (24 VAC) only. Do not connect line
voltage to the relays!
Connect the device under control between the desired output terminal
and the related SC (Switched Common for relays) or GND (Ground
for analog outputs) terminal. For each bank of three relays, there is one
Switched (relay) Common connection (in place of the GND terminal used
with analog outputs).
Do not aach a device that draws current exceeding the FlexStat’s
output capacity:
• Maximum output current for individual ANALOG outputs is 20
mA @ 12 VDC (each).
• Max. output current is 1 A for individual RELAYS @ 24 VAC/VDC
or a total of 1.5 A per bank of 3 relays (relays 1–3 or 4–6).
For example, KMC REE-3111/3112 relays could be connected to the
analog outputs, but REE-3211/3221/3213 relays would exceed the Flex-
Stat’s analog output capacity (although the REE-3211 can be used with
the FlexStat’s internal relays).
FlexStat internal relays are NO, SPST (Form “A”). (To emulate binary
outputs with the analog outputs, set the output voltage to be either 0 or
12 VDC in Control Basic.)
Connecting Outputs
Switched (Relay) Common and Relays
Ethernet and MS/TP Network Connectors
IN9
IN8
GND
IN7
+B
–A
IN4
IN3
GND
IN2
Common/–/C
Phase/ /R
Analog 9
GND 7–9
Analog 8
Analog 7
Analog 6
GND 4–6
Analog 5
Analog 4
Relay 3
SC 1–3
Relay 2
Relay 1
Outputs
(Wiring Cutout in Backplate)
MS/TP
Network
Inputs
24 VAC
(Wiring is
dependent on
application)
Inputs
IP/Ethernet
Network
(Optional)
NOTE: IN1 and IN5–6 are
reserved for internal sensors
NOTE: SC = Switched
(relay) Common