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Document Number: 129-369
Installation Instructions
September 30, 2002
B
M
G
B1
M
G0
Y1
M
G
Y
M
U
G0
Figure 10.
Connecting Terminals
24 Vac
G System Potential (SP)
G0 System Neutral (SN)
Y Control Input: 0 to 10 Vdc or 4 to 20 mA
(DIP switch selectable)
Z
Override Control
(See Technical Instructions 155-717)
M Measuring Neutral
U Output for 0 to 10 Vdc or 4 to 20 mA
measuring voltage. It will match the input
signal type.
The position output signal U will switch from 0 to 10
Vdc to 4 to 20 mA when a 4 to 20 mA input signal is
selected and used on the terminal.
Start Up
•
Check the wiring for proper connections.
•
Consult the Technical Instructions 155-717 for
detailed commissioning instructions.
Stroke Calibration
To determine the stroke positions 0 and 100% in the
valve, calibration is required when the valve/actuator
are commissioned for the first time.
The actuator must be mechanically connected to a
valve and must have a supply voltage of 24 Vac. The
calibration procedure can be repeated as often as
necessary.
To initiate the calibration procedure, short
circuit the contacts inside the slot located
on the printed circuit board (with a
screwdriver).
Page 4 of 6
G (SP)
F1
B1
1
2
3
N1
Y1
Z
B1
F1
N1
Y1
G0 (SN)
Automatic calibration proceeds as follows:
•
Actuator runs to the 0 stroke position (1) the green
LED flashes .
•
Actuator then runs to
the 100% stroke
position (2) the
green LED flashes.
•
Measured values are
stored in the
Sensor
Temperature Limiter
EPROM.
Controller
Actuator
•
The actuator now moves to the position defined by
control signal Y or Z (3), and the green LED now
glows steady (normal operation)
•
Throughout this procedure, output U is inactive,
meaning the values only represent actual positions
when the green LED stops flashing and remains
on continually.
LED
Display
Flashing
Flashing
OFF
Stroke
0 %
100 %
Table 1. LED Status.
Function
ON
Normal Operation
Stroke calibration
In Progress
Faulty stroke
calibration
ON
Internal Error
Inner valve jammed
•
No power
supply
•
Faulty
electronics
CAUTION:
Before starting calibration, be sure that the
manual adjuster is set to Automatic to
register the actuator values.
Siemens Building Technologies, Inc.
2
1
3
y
Action
Automatic operation
Wait for calibration to be
completed (LED stops
flashing)
- Check mounting
- Restart stroke
calibration (by short-
circuiting calibration slot)
- Replace electronics
Check the valve
-Check mains
-Replace electronics
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