Delay for fan enable
With parameters ALM-01 and ALM-02 the delay to enable the "FanEnable" output can be defined. This delay should be set to a value greater or equal to the damper runtime (= alarm delay). The "FanEnable" output will only be set to on, when the outside air damper and exhaust air damper are open and there is no damper alarm "DamperAlarm".
When damper end-switches are connected ALM-02 = 1, the respective fan enable signals will be released as soon as the end switch contacts are opened.
Without damper end switches:
Notes: If during normal operation one of the damper end switches fails again the fan enable signal "FanEnable" will be immediately reset to “0”.
Description |
Default value |
ALM-01: damper run time |
150 sec |
ALM-02: end switch is connected |
0 |