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EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER
74-2958—114
Fig. 5. Excel 10 W7750B Constant Volume AHU Controller.
CPU:
Motorola or Toshiba 3150 Neuron processor, containin
g
three
ei
g
ht-bit CPUs. Each Neuron has a uni
q
ue 48-bit network
identification number.
Memory Capacity:
64K ROM/PROM
(
6K reserved for network operations, 58K
usable for control al
g
orithm code
)
.
512 b
y
tes EEPROM.
2K RAM.
Specified Space Temperature Sensing Range:
45 to 99°F
(
7 to 37°C
)
with an allowable control setpoint ran
g
e
from 50 to 90°F
(
10 to 32°C
)
when initiated from the network
and 55 to 85°F
(
13 to 29°C
)
when confi
g
ured and connected
to T7770 or T7560 Wall Modules.
M6854B
1
23
456
7
89
10
11 12
13 14
15
J3
31
30 29 28 27 26 25
24 23 22 21
20 19 18
17 16
E
GND
LED BYPASS
SNSR
SET PT AI-1
OHM
A1-2
OHM
AI-3
V/mA
AI-4
V/mA
20VDC
OUT
DI-4
DI-3
DI-2
DI-1
VAC
24
VAC
24
COM
1
OUT
2
OUT
3
OUT
4
OUT
5
OUT
6
OUT
7
OUT
8
OUT
AI
GND
AI
GND
AI
GND
L
ON
W
ORKS
BUS
L
ON
JACK
DI
GND
DI
GND