Sentera Controls STR-1, Mounting And Operating Instructions

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OPERATIONAL DIAGRAM
Operational diagram - L22 Operational diagram - L20
Regulated output (U)
Unregulated output (L1)
Knob
position
0 1 2 3 4 5
230
190
170
140
110
U [VAC]
L1
Knob
position
0 1 2 3 4 5
230
170
140
120
100
U [VAC]
L1
Regulated output (U)
Unregulated output (L1)
WIRING AND CONNECTIONS
Connections
L Power supply, line (230 VAC / 50—60 Hz)
N Power supply, neutral
L1 Unregulated output, line
N Regulated output to motor, neutral
U Regulated output to motor, line
Earth terminals
ATTENTION
Make sure you use cables with an appropriate diameter.
MOUNTING INSTRUCTIONS IN STEPS
Before you start mounting the STR-1, read carefully “ Safety and Precautions” and
follow these steps. Choose a smooth solid surface for installation (a wall, panel, etc.).
Follow these steps:
1. Open the door of the controller. Mind the wires that connect the rotary switch
with the autotransformer or with the printed circuit board, depending on the
product version.
2.
Mount the enclosure using corrosion resistant screws or bolts. Mind the correct
mounting position and unit mounting dimensions (see
Fig. 1 Mounting dimensions
and Fig. 2 Mounting position ). The mounting holes are on the inside back panel of
the enclosure and are covered with blanking plugs.
3. Pay attention to following instructions in order to minimize the operating
temperature:
3.1 Respect the distances both between the wall /ceiling and the device and
between two devices as shown in
Fig. 2.
In order to ensure sufficient
ventilation of the controller, clearance on every side has to be maintained.
STANDARD 230 VAC
TRANSFORMER CONTROLLER
STR-1