Frequency Outputs; Alarm Outputs; Plc Interface - ABB MagMaster Instruction Manual

3.4.1 Frequency Outputs – Fig. 3.16
Counter/Totalizers
DC
supply
Forward Flow
and/or
Reverse Flow
Electromechanical
Connections
Counter/Totalizers
Forward Flow
1 2 3 4 5 6
1 2 3 4 5 6
and/or
Reverse Flow
Telemetry, Electronic
Counters etc.
Fig. 3.16 Frequency Output Connections
3.4.2 Alarm Outputs – Fig. 3.17
Information.
• Inductive loads may be suppressed by diodes (D) – 1N4004 or similar.
• Inrush currents are limited to 1 Amp by resistor R – e.g. 27 1W for 24V systems.
• Operation of outputs is programmable – see Configuration Manual for details.
• Frequency and Alarm outputs share a common return with contact input.
• External isolators not normally required, as the pulse, alarm and contact circuits are
electrically separated from all other Magmaster connections.
Alarms
Information. Relay
shown for example only. Connect as
required.
MagMaster Transmitter
F OUT A
F OUT B
PLS0V
F OUT A
F OUT B
PLS0V
MagMaster Transmitter
ALARM1
ALARM2
PLS0V
and Timer Switch
Fig. 3.17 Alarm Output Connections
3 ELECTRICAL INSTALLATION...
3.4.3 PLC Interface – Fig. 3.18
DC
Fwd +
supply
Rev +
—
PLC
DC common
PLC — Common —ve
DC Fwd –
supply
Rev –
—
PLC
PLC — Common +ve
Fig. 3.18 PLC Interface
Timer
DC.
Switch
Alarm 1
supply
+
R
Alarm 2
and/or
Relay
Relays and Timers
Typically 1k
1W
F OUT A
F OUT B
PLS0V
F OUT A
F OUT B
PLS0V
MagMaster Transmitter
ALARM1
ALARM2
PLS0V
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