Arroyo Instruments TECPak 586 Series, Руководство пользователя

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Page 28 · 586 TECPak User’s Manual
External Fan Control
The
586 TECPak has a built-in user adjustable DC power supply designed to
provide up to 350mA to an external fan, such as those built into the 240 and 280
Series LaserMounts . When using the TECPak with mounts that require a fan,
no additional external power supply is needed, but a cable with appropriate
wiring for the fan, such as the
1264 TECSource Cable , must be used.
The fan is controlled via the TEC:FAN command, or via the
Settings… dialog in
Arroyo Control .
Speed can be set to
Off , Slow , Medium , Fast , or a value between 4 and 12
(volts). When set to Off , the fan power is never turned on. Slow , Medium , and
Fast correspond to 6.5V, 7.5V, and 8.5V, respectively.
There are five modes:
1 Fan is turned on whenever the TEC output is on, and turns off when the
TEC output is turned off.
2 Fan is always on.
3 Similar to mode 1, the fan is turned on whenever the TEC output is on,
but when the TEC is turned off, the fan will remaining running for an
addition number of minutes as defined by the
delay setting.
4 Fan is turned on whenever the TEC output is on and cooling, off
otherwise.
5 Fan is turned on whenever the TEC output is on and heating, off
otherwise.
When used,
Delay is in minutes, and can be from 1 to 240.
Resistive Heaters and Heat/Cool Only Modes
The
586 TECPak supports temperature control using resistive heaters instead of
Peltier coolers. With resistive heaters, cooling is obviously not possible, and the
TECPak must be configured to not attempt to cool the output, or a run-away
condition will occur when the cooling current actually causes additional heating.
If your application requires, you can also configure the
TECPak to operate in a
cool-only mode. This is only possible with Peltier coolers.
To change the cooling mode, change Heat/Cool Mode setting in the
Settings…
dialog in Arroyo Control , or use the TEC:HEATCOOL command.