Quick stop Electronic Control Hägglunds QECB

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.

Technical data

Terminal / fuse overview

Fuse function

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	+24VDC out
902			0VDC
903		Master bypass valve solenoid	+24VDC out
904			0VDC
905		Slave stop valve solenoid	+24VDC
906			0VDC
907		Slave bypass valve solenoid	+24VDC out
908			0VDC
404		Supply for internal use	0VDC
410			+24VDC
L		Main supply input	Line
N			Neutral
PE			Protective earth

Connections

Operating data

Dimensions

Dimensions in mm

Information

Required and additional documentation

Ordering codes

Downloads

Hägglunds QECC - Quick stop electronic control Data Sheet | RE15370 | 2020-06-01 | English | PDF | 327k Product Groups: Radial piston motors accessories