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ID-E316-001GB
power supply is restored, the power adaptor recharges batteries until the "recharging complete" voltage
is obtained and switches to the buffering mode.
Apart from the basic functions including supplying power to the control panel, recharging or buffering
the battery cluster, the power supply module protects the energised control panel circuits.
The power adaptor is equipped with the following protection, monitoring and signalling circuits:
-
overvoltage circuit - actuated when the output voltage increases over 33 V - 35 V, which results
in permanent power adaptor disconnection. In order to remove the results of the protection
element actuation and return to the normal operation condition, the power adaptor must be
disconnected from mains for approx. 5 seconds;
-
current limiting circuit - actuated when the power adaptor is overloaded - signalled with the
LIMIT lamp;
-
correct operation indication - green OK diode is lit.
The MZ-48 power supply module has output terminal blocks for the following voltages:
-
24 V - control panel operating voltage;
-
27 V - insulated voltage to supply detection lines;
-
5 V - electronic circuits supply voltage;
-
24 V - internal equipment supply voltage protected with a B2 / 3.15 A fuse.
Moreover, the MZ-48 has input terminal blocks to connect the following elements:
-
AC power adaptor (+ 30 V);
-
battery cluster (AK) protected with a B1 / 10 A fuse;
-
temperature probe (PROBE).
The MZ-48 power supply module is equipped with the following protection, monitoring and signalling
circuits:
-
230 / 50 Hz voltage monitoring circuit – "mains OK" LED is lit;
-
+ 5 V power adaptor correct operation indication - green "5 V OK" LED is lit;
-
battery recharging indication - green "CHARGING" LED is lit;
-
battery efficiency control circuit - faults indicated by the yellow "BATTERY FAULT" LED;
-
control panel ground fault indication - yellow "EARTH FAULT" LED is lit;
-
voltage decrease detection circuit - when the battery voltage drops below 22V ± 1V.
Such conditions as loss of mains voltage, loss of battery cluster voltage or fuse failure are also indicated
on the TSO-4500 board – the collective "FAULT" diode is lit, "POWER" diode blinks and an acoustic signal
is emitted. The fault indication messages may be accessed by pressing the "FAULT" push button, in
accordance with the programming manual (PM).
Summary of Contents for 4000
Page 25: ...ID E342 001GB 25 Fig 5 3 MSL 1M line module overview ...
Page 96: ...96 ID E316 001GB Fig 9 16 Non potential output exemplary connection ...
Page 101: ...ID E342 001GB 101 Fig 10 2 MSI 48 and MSI 48 Ed 3 network modules ...
Page 103: ...ID E342 001GB 103 Fig 10 3 Four control panels network connection with two pairs of cables ...