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MD5 RoofPak Energy Recovery
Wheel, Frost Control Option
Figure 17: MD5 RoofPak — Energy Recovery Wheel, Frost Control Option
29 A+
+NB
VFD10
SAF
MD5
B
L
A J
C
K
J
J
BUS
TERMINAL *
OM 1191 • MD5 VFD
WHITE
BLACK
8
RJ-
30 B-
45
X1A
SCR
1
AI1
2
AGND
3
10V
4
AI2
5
AGND
6
AO1
7
AGND
8
9
24V 10
GND 11
DCOM 12 Jumper to establish digital ground reference
to internal 24VDC supply.
DI1 13
DI2 14
Run Enable
DI3 15
DI4 16
DI5 17
XIB
RO1C 17
RO1A 18
RO1B 19
P:\Marketing\TechPubs\OMs\OM 1190 VFD - MD4\00-Resources\Appendix Material\RPS ERW sche
A+1/2.12
B-1/2.13
REMOTE KEYPAD CONNECTION
YELLOW
MB
R11
9
* Top pins jumpered to the Modbus "terminated" position
94
5
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