Johnson Controls Penn System 450 Series User Manual

System 450™ Series Modular Control Systems with Standard Control Modules Technical Bulletin 39
Table 6 provides descriptions, ratings, requirements, and recommended cable
types and recommended wire sizes for System 450 standard control, expansion,
and power modules.
Table 6: System 450 Wiring Terminal and Wire Size Information (Part 1 of 2)
Terminal Block
Type
(on Module Type)
Terminal
Label
Terminal Function Required Wire
Sizes
Sensor and
Low-Voltage
Supply Power
Terminal Block
(on all Control
Modules)
24V Accepts 24 VAC supply power, when a
C450YNN-1C power module is not connected, and
provides power terminal for active 24 VAC (humidity)
sensors.
28 AWG to 16 AWG
0.08 mm
2
to 1.5 mm
2
5V Provides 5 VDC power for active sensors.
Sn1, Sn2,
Sn3
Accepts passive or active input signals from
sensors.
C
(3
Terminals)
Provides low-voltage common connections for
24 VAC power and passive or active sensors
connected to the 5V, Sn1, Sn2, and Sn3 terminals.
Note: The three C terminals are connected
internally.
Figure 16: Wiring Terminal Details for System 450 Control and
Expansion Modules with Analog Outputs
System 450
Control Module
with Analog Outputs
(C450CQN-x)
System 450
Expansion Module
with Analog Outputs
(C450SQN-x)
sys450_anlg_cntrl_expnsn_wirng
AO2
COM
AO1
Analog
Controlled
Device
Analog
Controlled
Device
+
__
+
Low-Voltage
(on Analog Control and
Analog Expansion Modules)
Analog Output Terminals
Sn2
C
Sn3
5V
24V
C
Sn1
C
Common terminals (C)
are internally
connected.
AO2
COM
AO1
Note:
C450xPN-x control and expansion modules only have two terminals with AO1
and COM connections.
AO2
COM
AO1

Johnson Controls Penn System 450 Series Specifications

General

Brand	Johnson Controls
Model	Penn System 450 Series
Category	Control Systems
Language	English