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WARNING
Installation and maintenance must be carried out by suitably qualified
personnel only. Hazardous voltages may be present on the connection terminals.
Installation
This product is intended to be installed in accordance with the operating and installation
requirements of Overvoltage Category II and Pollution Degree 2 (as defined by IEC 664).
It must be fitted in a suitable enclosure which is accessible to qualified personnel only.
An external supply fuse must be fitted. The recommended fuse is:
DC supply - S504-2A manufactured by Bussmann.
Fuse details: Antisurge 2A, Rating 50V , Breaking capacity 35A @50V, UL recognised
(file no E75865), complies with IEC127.
AC supply - S504-200mA manufactured by Bussmann.
Fuse details: Antisurge 200mA, Rating 250VAC , Breaking capacity 35A @250VAC, UL
recognised (file no E75865), complies with IEC127.
The relay output circuits must be fitted with fuses suitable for the voltage and current
being switched.
Maximum fuse ratings:
250VAC
@ cosØ= 1
30VDC
@ cosØ= 1
All conductors carrying hazardous voltage should have external switching or disconnect
mechanisms fitted which provide at least 3mm of contact separation in all poles.
Failure to install or operate the unit in accordance with the above requirements
may result in the electrical safety of the unit being impaired.
Maintenance
Ensure that all power sources to the unit are isolated prior to maintenance,
inspection or cleaning.
There are no user serviceable parts inside this unit. Under no circumstances should the
case be opened.
All external wiring connections should be inspected at regular intervals. Any damaged
wiring should be replaced and any loose connections should be retightened.
Cleaning should be carried out using a dry cloth to wipe the casing of the unit.
Programming
Caution: If the optional relay output and/or analog output board(s) are installed in
the DPM, then entering Program mode will cause both relays to release and the analog
output to go to its minimum value (0V or 4 mA) regardless of the input signal value.
2
fuse rating 5A
fuse rating 5A
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