– 25 –© LEYBOLD VAKUUM GMBH GA 05.212/10 - 09/00X12X18X14 X16X17X15X13S2S6 S5X21X20X19X13X12 X14 X16X17X18X15K2115V230VX11X10K1S11S13S12S14S17 S185.4 Relay statuses*) I DC link (DC link current) < I limit (current limit) specified by the pressure triggerpotentiometerOff = not active; On = activeS2Fig. 12 PC board layouts NT12 and NT13Supply voltageselector switchFuse F1T 1A/ 250VRelay function Operating statusSupply ON ACCEL. NORMAL FAIL STOPRelay K1Normal Off Off On Off OffPressure trigger Off Off On *) Off OffRelay K2Fail (fault) Off Off Off On OffControl,pre-vacuum pump Off On On On Off