Execution of the connection of internal circuits.
The standards for the electrical installation of intrinsically safe circuits
according to EN 60079-11 must be observed.
► Check the cables for tight fit.
► Check distance between non-insulated strands of at least 3.0 mm to
earthed parts.
► Check distance between intrinsically safe circuits of at least 6.0 mm.
Polarity of the solenoid valves.
If the polarity is incorrect or reversed, the solenoid valves may be damaged
and dangerous explosive situations may occur.
► DO NOT reverse the polarity.
► Always make the electrical connections carefully observing the correct
+/- polarity marked on the solenoid valve coil.
► The terminal strip assignments and designations from chapter 6.4.3 must
be observed.
Description of the function of the terminal strip
Intrinsically
safe circuit
Terminal strip
Designation
Functional description
Sensor S1
S1+
Sensor S1+
Internal connection sensor L+ (brown wire)
S1-
Sensor S1-
Internal connection sensor L- (blue wire)
Sensor S2
S2+
Sensor S2+
Internal connection sensor L+ (brown wire)
S2-
Sensor S2-
Internal connection sensor L- (blue wire)
Solenoid valve
Y1
Y1+
Pilot valve
Y1+
Internal connection solenoid valve L+ (red wire)
Y1-
Pilot valve
Y1-
Internal connection solenoid valve L- (black wire)
Solenoid valve
Y2
Y2+
Pilot valve
Y2+
Internal connection solenoid valve L+ (red wire)
Y2-
Pilot valve
Y2-
Internal connection solenoid valve L- (black wire)
Solenoid valve
Y3
Y3+
Pilot valve
Y3+
Internal connection solenoid valve L+ (red wire)
Y3-
Pilot valve
Y3-
Internal connection solenoid valve L- (black wire)
Carry out the following steps:
1.
Connect the sensors S1 and S2 to the terminal strip of the sensor module
(43)
Servicing
Installation
430BAL013985EN_6
25.04.2023
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Содержание T.VIS E-20
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