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Key Switch:
You can lock the settings so that they cannot be changed by unauthorised operators. The key
switch is on the face of the Ionstorm Controller.
Operating the Lock Switch freezes the control settings and illuminates the LOCK LED.
When the key switch is turned "off" the control knobs will become reactivated and the ionised output
will conform to the control settings. Two keys are supplied with the unit. They are common key
pattern keys which are readily available from Fraser or electrical suppliers, if lost.
Electrical Supply
The electrical supply is shown on the label. It is 230V 50/60 Hz unless otherwise ordered.
Mains AC Supply: via IEC connector. The starting load is 35VA, the running load is 7VA.
24V DC Supply:
IMPORTANT: When using the 24V DC supply the 3700 Controller must be earthed / grounded
via the 4mm socket on the left side wall next to the IEC mains socket. If this is not connected
to earth, the unit could become live.
Alarm LED
The POWER LED flashes to indicate warning and alarm conditions.
Rapid flashing indicates a fault condition where the unit is still operating. This may show that the HT
has failed to reach its set value within the predetermined time. This condition does not lead to
cut-out. It can be caused by moderately excessive load current (i.e. the 3850 Bar needs cleaning)
or by inadequate supply voltage (incorrect external supply voltage).
Slow flashing indicates that the unit has exceeded its allowable time (10 seconds) in an overload
condition and has ceased to generate HT. It has Cut–Off. This will happen if there is excessive
load or if there is an internal fault. The external alarm is arranged to operate on Cut-Off only. To
reset the alarm, switch the unit OFF and then ON again.
External Interface
External Interface is via a 6-pin Mini-DIN Socket.
Remote ON-OFF
Remote OFF: Pin 3 pulled LOW (connected to Pin 5).
IMPORTANT: Voltage applied to REMOTE must not exceed +12V and must not be negative.
Remote ALARM
The external alarm condition is indicated via N/C and N/O relay contacts.
NO FAULT: Pin 6 connected to Pin 4. FAULT: Pin 2 connected to Pin 4.
The external load should not exceed 1A at 24V.
PIN
FUNCTION
1
Not used
2
Relay N/O
3
Remote ON/OFF
4
Relay Common
5
0 Volts
6
Relay N/C
Instructions/Booklet/Ionstorm iss.8
A 315mA A/S 20 x 5mm fuse is fitted in the switch for 230V, or 630mA for
115V. The mains supply must have an earth / ground.
The 3700 Controller can also be powered by a 24V DC supply. The connection
is via a 2.1mm x 5mm jack socket on the rear side wall. Centre pin positive,
outer shield ground.
The external DC supply is not switched within the unit.
6 Pole Mini-DIN Connector. View
into socket on controller.
6
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