Oldham MX15, Инструкция по установке и эксплуатации, Страница: 12 / 32

8 MX 15
Instruction Manual
Verify the current and the grid power supply: the grid power supply must
correspond to the supply indicated on the controller front plate.
The MX 15 does not have an on/off switch.
Certain power supplies can cause serious or fatal injury. All
installation and wiring should be performed before turning on the
power supply.
Incorrect installation can lead to measurement errors or system
failure, all instructions in this manual must be followed carefully to
guarantee proper system operation.
Functional ground connection
The controller must be connected to a functional ground connection.
The ground terminal (yellow) (Figure 2, ref. D) is indicated with the following
symbol: .
Refer to the wiring examples on pages 10 to 12.
Power
The controller must be protected upstream by a differential bipolar circuit
breaker with a nominal current of 0.5 A. The response curve must be type D.
Power supply 230 V AC
Protection is provided by fuse F7 (Figure 2, ref. C). The sector power supply
must be wired to the two terminals marked L (orange) and N (blue) ( Figure 2,
ref. E) as indicated by the wiring examples on pages 10 to 12.
Power supply 115 V AC
Protection is provided by fuse F7 (Figure 2, ref. C). The sector power supply
must be wired to the two terminals marked L (orange) and N (blue) ( Figure 2,
ref. E) as indicated by the wiring examples on pages 10 to 12.
Power supply 24 V DC
The 24 V DC power supply is connected to the terminals marked 0 and +24V
(Figure 2, ref. F) as indicated by the wiring examples on page 9.
This input is
protected by fuse F8 (Figure 2, ref. B).
Measurement Channels
Sensors
The different types of sensors should be connected to terminals C1, C2 and
C3 (Figure 2, ref. E) as indicated by the wiring examples on page 9.
Wheatstone bridge 3 active wire explosive gas detectors
■ C1: mid-point (signal).
■ C2 : detector filament (-).
■ C3 : compensator filament (+).