Page 26
Operation of multifunctional relay MFR
The MFR (
45
) controls and monitors the vital functions of the pressurisation equipment. Several alarm condi-
tions are forwarded to external signal outputs for remote alarming purposes.
Deadly risk!
Electro specialists only are allowed to operate the buttons of the MFR.
Other users must use the ACS to operate the system.
Meaning of the LEDs
Normal operation
47 Signal LED „DC“
illuminates, when signal voltage is on, fuse „
B
“ is intact.
50 Signal LED „AC“
illuminates, when supply voltage is on: motor protective switch (
5
) is switched on,
fuse „
A
“ is intact.
52 Signal LED „F-on“
illuminates, when humidity monitoring is on.
Turns off, when humidity monitoring is bypassed (e. g. running dry of the system) by pressing the button
„F-off“
(
61
).
54 Signal-LED „Y1 state“
illuminates, when air dryer 1 is active (relay KY1 and solenoid Y1 are activated).
55 Signal-LED „Y2 state“
illuminates, when air dryer 2 is active (relay KY2 and solenoid Y2 are activated).
56 Signal-LED „Comp OK“
illuminates, when the compressor is ready for use and the system is fault-free.
57 Signal-LED „State Comp in“
flashes as soon as the compressor is running.
51 Signal-LED „Remote“
flashes during data exchange between MFR (
45
) and ACS (
18
).
Alarms
48 Signal-LED „F“
illuminates, when the maximal admissible amount of humidity in the output air is exceeded.
59 Signal output-LED „A“
illuminates, when a system signal is pending (generated by „F“-fault respectively
breakdown of supply voltage) and the signal relay K-A is activated = external alarm is activated.
Summary of Contents for RTS 1000
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Page 53: ...Page 53 Circuit diagram Nr 074880 000...
