CHAPTER 1: PRODUCT DESCRIPTION
1-2
MAXNET
®
– MNAC/MNDC Modular Power Supply – Installation & Operation Manual
1.2 Functional Diagrams
Figure #2: MNAC-110 Power Supply
Functional Diagram
INPUT VOLTAGE: 110 ± 10 VOLTS AC
OUTPUT VOLTAGE: 24 ± 1.0 VOLTS DC
AC POWER
SUPPLY
MONITOR
LOGIC
F
F
2.5A
250V
6.3A
250V
110V
IN
24V
OUT
RLY
(ALARM)
PWR
+
-
+24V
BUS
TEST
(~ 24V)
T-DLY
FREQ: 50/60Hz
CURRENT: 2.0 AMPS AC
CURRENT: 3.6 AMPS DC
MNAC-110
I.T.E. POWER SUPPLY
E226099
5UA5
Figure #3: MNAC-220 Power Supply
Functional Diagram
MNAC-220
INPUT VOLTAGE: 220 ± 20 VOLTS AC
OUTPUT VOLTAGE: 24 ± 1.0 VOLTS DC
AC POWER
SUPPLY
MONITOR
LOGIC
F
F
1.25A
250V
6.3A
250V
220V
IN
24V
OUT
RLY
(ALARM)
PWR
+
-
+24V
BUS
TEST
(~ 24V)
T-DLY
FREQ: 50/60Hz
CURRENT: 1.0 AMPS AC
CURRENT: 3.6 AMPS DC
I.T.E. POWER SUPPLY
E226099
5UA5
Figure #1: MNDC Power Supply
Functional Diagram
MNDC
INPUT VOLTAGE: -48 ± 12 VOLTS DC
OUTPUT VOLTAGE: 24 ± 1.0 VOLTS DC
DC-DC
CONVERTER
MONITOR
LOGIC
F
F
4A
250V
6.3A
250V
48V
IN
24V
OUT
RLY
(ALARM)
PWR
+
-
+24V
BUS
TEST
(~ 24V)
T-DLY
CURRENT: 3.0 AMPS DC
CURRENT: 3.6 AMPS DC
I.T.E. POWER SUPPLY
E226099
5UA5
Figure #5: MNAC-220CM Power Supply with
Current Monitoring Functional Diagram
MNAC-220CM
INPUT VOLTAGE: 220 ± 20 VOLTS AC
OUTPUT VOLTAGE: 24 ± 1.0 VOLTS DC
FREQ: 50/60Hz
CURRENT: 1.0 AMPS AC
CURRENT: 3.6 AMPS DC
NO RLY
V ALARM
NO RLY
I ALARM
220V
IN
24V
OUT
AC POWER
SUPPLY
+24V
BUS
I SET
VOLTAGE
MONITOR
PWR
+
-
TEST
(~24V)
1.25A
250V
6.3A
250V
T-DLY
CURRENT
MONITOR
I SET
F
F
I.T.E. POWER SUPPLY
E226099
5UA5
Figure #4: MNAC-110CM Power Supply with
Current Monitoring Functional Diagram
INPUT VOLTAGE: 110 ± 10 VOLTS AC
OUTPUT VOLTAGE: 24 ± 1.0 VOLTS DC
FREQ: 50/60Hz
CURRENT: 2.0 AMPS AC
CURRENT: 3.6 AMPS DC
NO RLY
V ALARM
NO RLY
I ALARM
110V
IN
24V
OUT
AC POWER
SUPPLY
+24V
BUS
I SET
VOLTAGE
MONITOR
PWR
+
-
TEST
(~24V)
2.5A
250V
6.3A
250V
T-DLY
CURRENT
MONITOR
I SET
F
F
F
F
I.T.E. POWER SUPPLY
E226099
5UA5
MNAC-110CM
Figure #6: MNRPS Remote Power Supply
Functional Diagram
MNRPS
MONITOR
LOGIC
F
6.3A
250V
24V
IN
24V
OUT
RLY
(ALARM)
PWR
+
-
+24V
BUS
TEST
(~ 24V)
INPUT VOLTAGE: 24 ± 1.0 VOLTS DC
CURRENT: 3.6 AMPS DC
OUTPUT VOLTAGE: 24 ± 1.0 VOLTS DC
CURRENT: 3.6 AMPS DC
Figure #7: MNRPS(CM) Remote Power Supply
with Current Monitoring Functional Diagram
MNRPS(CM)
INPUT VOLTAGE: 24 ± 1.0 VOLTS DC
CURRENT: 3.6 AMPS DC
OUTPUT VOLTAGE: 24 ± 1.0 VOLTS DC
CURRENT: 3.6 AMPS DC
F
6.3A
250V
NO RLY
(V ALARM)
+24V
IN A
NO RLY
(I ALARM)
PWR
+
-
+24V
BUS
TEST
(
~
24V)
MONITOR
LOGIC
VOLTAGE
MONITOR
LOGIC
CURRENT
I SET
SET
ADJ
MNRPSCM ONLY
+24V
IN B
