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ATTENTION
The ventilator must run when the Power Controller is switched on.
4.4 RESET
The input RESET (terminals X5.2.12-X5.1.14) is separated from the remaining system by an opto-
electronic coupler. By opening the RESET jumper the Thyristor Power Controller is locked (load:
24V/20mA), i.e. the power sections are no longer triggered. On activating RESET, LED “ON” lights
up red.
Functional procedure:
TERMINALS FUNCTION
X5.12-14 closed Enables the power sections, Power Contr. in operation
X5.12-14 open Power Controller out of operation, communication via interfaces not
possible
X5.12-14 system reinitialisation
is closed
TAB. 12 RESET
The hardware RESET must be applied when synchronising the software of several Power Controllers
(chapter 6.2 Software synchronisation). If the Power Controller is equipped with a Bus option, a Bus
RESET also ensues from the hardware RESET. Apart from opening the jumper terminal X5.2.12-
X5.1.14, the hardware RESET is also activated by supply voltage OFF or by reducing the supply
voltage at the Power Controller (A70-X1) to below 160V.
4.4.1 SOFTWARE-RESET
The RESET function can be activated by signals via the status register (software RESET). The soft-
ware RESET does not infl uence the Bus function.
4.5 CONTROLLER LOCK
The input controller lock (terminals X5.2.15 and X5.1.14) is electrically identical to the input RESET
(electrical data as under 4.4.).
ATTENTION
When activating controller lock, the LED „PULSE LOCK“ is lit and the control device remains com-
pletely in operation. The total set point is therefore without effect, but the min. limiting values (TS-
MIN, HIME) remain active. This enables securing a certain quantity of electrical energy at the load.
TERMINALS FUNCTION
X5.15-14 closed Power Controller operating
X5.15-14 open control pulses OFF (default value) or pulse limit
TAB. 13 CONTROLLER LOCK
All other functions of the Power Controller remain in operation. The state of the signalling relay
does not change (parameter-dependent) and communications remains active. After closing the
controller lock jumper, the controller is back in operation.