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Option Parameters
Option parameter list
WARNING: Use extreme care when entering option parameters. Incorrect data entry could
cause a hazardous situation to occur.
Note: If an option parameter is marked with ‘*’, it is not possible to adjust its value using the site
passcode. If using the supplier passcode and it is still not possible to adjust the value of an option
parameter, the burner must be turned off first.
Option 00.1 - Three digit site passcode (0 – 999)*
This is a three digit passcode which will allow the site engineer to enter option set mode only.
Options 00.5 and 00.6 – Serial communications passcodes (0 – 999)*
These passcodes enable boiler sequence control, serial data communications or both. For more
details on how to enable these features, contact the equipment supplier and have the 6-digit CPU
serial number available. Note that serial data communications is always available in commission
ratio mode regardless of the passcode value, as long as a RAM chip is fitted (this chip must be
obtained from Fireye Inc.).
Option 01.1 - Power supply frequency (50/60)*
The unit must be configured for the correct power supply frequency, which is required for use by the
on-board software plausibility checking. The setting is either 50 or 60Hz.
Option 01.2 – Serial communications unit address (0 – 15)*
If the unit is to be connected to other equipment via the serial communications interface, it must be
given a unique unit address using this option parameter.
Options 01.5 to 01.7 - Motor supply voltage (0/1)*
The basic drive board (AH221243) and isolated drive board (AH221244) are supplied in two differ-
ent type variants. The first variant is suitable for low voltage (up to 50Vac) high current motors. The
second variant is suitable for high voltage (up to 250Vac) low current motors. If the wrong variant is
fitted, then the board will operate out of tolerance and may fail prematurely.
To protect against the wrong variant of board being fitted, the unit must be configured for the correct
motor supply voltage. The unit checks the value of this option parameter against the board variants
fitted. If the wrong type of board is fitted, a potentiometer supply fault will be given, and the unit
will undergo a safety shutdown. These option parameters may be set to one of two possible values:
0
- The board variant is a low voltage type.
The motor supply is no higher than 50 Vac.
1
- The board variant is a high voltage type.
The motor supply is no higher than 250Vac.
The option parameters apply as follows:
1.5
- Basic drive board type
1.6
- Isolated drive board type in option slot 1
1.7
- Isolated drive board type in option slot 2
Option 02.1 - Enable keyboard auto/manual (0/1)*
In addition to remote auto/manual modulation mode selection using the mains inputs, the unit may
be configured to allow modulation mode selection to be performed from the keyboard. Set this
option to
1
to enable selection from the keyboard.
Option 02.2 - Bumpless transfer operation (0 – 2)*
This option parameter determines how the modulation mode and modulation rate are affected when
power to the unit is interrupted. The options are as follows:
0
- The unit always powers up in AUTO modulation mode.
