Installation Instructions

Document No. 540-1029
Installation Instructions
October 26, 2016
Siemens Industry, Inc Page 3 of 4.
Wiring Diagram
CAUTION
The controller’s DOs control 24 Vac
loads only. The maximum rating is
12 VA for each DO. An external
interposing relay is required for any
of the following:
• VA requirements higher than the
maximum
• 110 or 220 Vac requirements
• DC power requirements
• Separate transformers used to
power the load.
(for example part number 540-147,
Terminal Equipment Controller
Relay Module)
Wiring for AI with a 4 to 20mA Sensor.
NOTE:
If the voltage/current switch is set to
current and a 4 to 20mA sensor is
connected to an AI, then special wiring
requirements must be followed.
NOTE:
When wiring any actuator that uses a 0 to
10V control signal and ties AC neutral to DC
common, an additional wire
must connect
the actuator AC neutral to the DC common
of the PTEC/TEC AO being used to control
the actuator.
24 Vac Modulating Control.
Actuator
Symbol
TEC
Connection
Function
Terminal
Connection
Standard
Color
1
H
Supply (SP)
G
Red
2
C
Neutral (SN)
G0
Black
8
AO3 – 15
(+)
0 to 10V
input signal
Y
Gray
--
C to AO3
16 (-)
Common
jumper
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