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Emerson E2 Installation And Operation Manual page 78

For rx refrigeration, bx hvac, and cx convenience store controllers
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MultiFlex ESR INSTALLATION GUIDE
POWER
VALVE 1
VALVE 2
6
AC1 GND
AC2
3
JP2 JP3 JP4
S1
NETWORK
1
SHIELDED TWISTED PAIR
BELDEN #8761. FOR PLENUM,
USE BELDEN #82761, 88761,
OR EQUIV.
WIRE + to + (same color)
WIRE SHIELD TO CENTER PIN
WIRE - to - (same color)
3
5
Valve 1 connector
enlarged to show
harness wire color
orientation:
Wire color legend silk screened
on each valve connector (8)
R
BLU
BLK W
6
120/208/240 VAC
L2
240
208
PRIMARY SIDE
•
6-22
E2 RX/BX/CX I&O Manual
VALVE 3
VALVE 4
VALVE 5
VALVE 6
VALVE 7
VALVE 8
2
Set the network address
using the first 5 rockers
of dip switch S1.
Valid address range 1-31.
BOARD 1
1
2
3
4
5
6
7
8
1
2
+485
ON
ON
BOARD 9
BOARD 10
0V
1
2
3
4
5
6
7
8
1
2
ON
ON
-485
BOARD 17
BOARD 18
1
2
3
4
5
6
7
8
1
2
ON
ON
BOARD 25
BOARD 26
1
2
3
4
5
6
7
8
1
2
ON
ON
4
[
MOD
MOD
[
I/O
NO
[
NOT TERMINATED
Stepper valve harness
(Match wire colors to
silk screen legend
on valve connectors)
Valve connectors on the
MultiFlex ESR board (1-8)
VALVE 2
VALVE 3
VALVE 4
VALVE 5
VALVE 6
WIRING FOR 640-0080, 80VA,
24VAC Center-Tapped Transformer
L1
Three-conductor non-shielded cables
are the recommended wire
for connecting between the
center-tapped transformer
and MultiFlex ESR boards.
C
120
1. Connect the MultiFlex ESR to the I/O Network.
2. Set the network address on the first five rockers of the
dip switch (labeled S1) on the MultiFlex ESR board.
3. Set the network baud rate using rockers 6 and 7.
4. If the E2 is the beginning of all RS-485 I/O or MODBUS Networks,
set all three jumpers to the UP position. For MODBUS, set the jumpers
in the top-most position (MOD). ForI/O Net, set the jumpers in the
middle position(I/O). For no termination, set the jumpers tothe DOWN position (NO).
5. Wire each stepper valve by connecting the stepper valve
harness to one of the eight connectors along the top
of the board.
6. Connect the MultiFlex ESR to a Class 2, 80VA
24VAC
center-tapped
power transformer. (One MultiFlex ESR board
per transformer.) For more information on transformer wiring,
refer to the MultiFlex ESR manual (
S1
BOARD 2
BOARD 3
BOARD 4
BOARD 5
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
ON
ON
ON
BOARD 11
BOARD 12
BOARD 13
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
2
3
1
ON
ON
ON
BOARD 19
BOARD 20
BOARD 21
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
ON
ON
ON
BOARD 27
BOARD 28
BOARD 29
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
ON
ON
ON
RS485 I/O NET
[
[
MOD
[
[
I/O
I/O
NO
[
NO
[
TERMINATED
TERMINATED
FOR I/O NET
FOR MODBUS NET
ECT Flow
ESR 12 or
ESR 20 Valve
VALVE 7
VALVE 8
24V
CT
24V
SECONDARY SIDE
P/N 026-1720
).
BOARD 6
BOARD 7
BOARD 8
4
5
6
7
8
2
3
4
5
6
7
8
2
3
4
5
6
7
8
2
3
4
1
1
1
ON
ON
ON
BOARD 14
BOARD 15
BOARD 16
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
ON
ON
ON
BOARD 22
BOARD 23
BOARD 24
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
ON
ON
ON
BOARD 31
BOARD 30
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
4
5
6
7
8
ON
ON
Use the cable harnesses
that are supplied with the valves.
(A valve cable harness may not
be longer than 150 feet)
For Sporlan valves match
all wire colors
except
the
green wire. Instead, connect
the green wire to the silk screen
blue wire legend.
AC1
24VAC Center-Tapped
GND
AC2
Earth ground the
GND (center-tapped)
terminal of each board
Power Wiring Types:
14 AWG
Belden 9495
18 AWG
Belden 9493
026-1614 Rev 4 5-JAN-2013
5
6
7
8
5
6
7
8
5
6
7
8
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