Description Function for 2 VQCB valves Features Performance level PL d Safety integrity level SIL 2 Product description The main blocks in the Quick stop box are a safety classified relay and a power supply with 24VDC output to give power to the Quick stop block valves. The unit can supply 2 stop blocks with 2 valves each. At normal drive the actuator chain shall be closed. There are 4 actuator inputs where 3 are factory jumpered. The outputs to stop and bypass solenoids on the Quick stop valve will be high (24VDC) to have a closed hydraulic circuit. If any of the actuator inputs are opened, the outputs to the Quick stop valves will be low (0V) to stop the hydraulic flow through the hydraulic motors and bypass the pump flow via the valve. The sensors on the stop valves will indicate deactivated valves. Reset of quick stop function can be done after fully activated stop sequence if the sensors indicate deactivated valves. Reset can be activated via the reset button on the Quick stop unit front or via a closing contact to terminals. Outputs are available to indicate status and to interlock control system for hydraulic oil flow. The unit also carries supply voltage outputs, 24VDC or main supply, for a water valve control circuit. The outputs are interlocked to switch off at electric motor(s) stop. Type code ln order to identify Hägglunds equipment exactly, the following ordering code is used. These ordering codes should be stated in full in all correspondence e.g. when ordering spare parts. 01 02 03 QEC B 01 Quickstop electronic control QEC 02 Version B Main voltage 03 100 / 200 VAC 1 115 / 230 VAC 2 Technical data Terminal / fuse overview F5 F6 9 11 802 804 808 814 816 818 828 852 854 855 864 898 902 904 906 908 F3 F4 F1 F2 10 12 801 803 807 813 815 817 827 851 853 855 863 897 901 903 905 907 404 410 L N PE Fuse function Fuse Function Comment F1 Main supply Line 2A Slow blow F2 Main supply Neutral F3 Quick stop actuator supply 315mA Slow blow F4 24VDC supply 8A Slow blow F5 Stop valve supply 4A Slow blow F6 Bypass valve supply Terminal description Pin Function Comment 9 Supply voltage for Mains VAC water valve Neutral 10 Line 11 Supply voltage for 24 VDC water valve 0VDC 12 +24VDC out 801 Input electric motor(s) started +24VDC in 802 not used 803 Output quick stop indication (open at quick stop) Indication contact 804 807 Input drive started +24VDC in 808 Input 0VDC (For #801 & 807) 813 Inductive sensor master stop valve (jumper #813 to 815 if not used) Reset signal out (+V to sensor) 814 0VDC 815 Reset signal in from sensor 816 Inductive sensor slave stop valve (jumper #816 to 818 if not used) Reset signal out (+V to sensor) 817 0VDC 818 Reset signal in from sensor 827 Quick stop actuator 1 828 851 Quick stop actuator 2 Factory jumpered 852 853 Quick stop actuator 3 Factory jumpered 854 855 Quick stop actuator 4 Factory jumpered 856 863 External reset 864 897 Quick stop active (open at quick stop) Safety contact 898 901 Master stop valve solenoid
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