Section 4. Inputs - Outputs, Onboard Switches, Push Buttons, Terminals; Bks1 - Brake Switch 1 Input; Bks2 - Brake Switch 2 Input; Brk - Brake Relay Output - ECD 100-194 EN81 Manual

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I N P U T S – O U T P U T S

Section 4. Inputs – Outputs, onboard switches, push buttons, ter minals

Inputs;

 High Voltage AC inputs: Inputs SAF, CG, LCK1, LCK2, M1 and M3 are high voltage input terminals or

monitoring points and switch to 110VAC or 240VAC with respect to M4/N

 Low Voltage DC inputs: Theses inputs switch low to 0 Volts with respect to 24VDC. The input shall draw

approximately 12mA. All inputs are OPTO isolated to avoid noise-related problems

Outputs;

 Transistor outputs: Outputs 1P-12, DDN, DUP, OS, HBS, switch high to 24V with respect to 0VDC

Transistor outputs can switch a maximum of 1.5A.

 Darlington outputs: These outputs switch low to 0V with respect to 24VDC

Darlington outputs can switch a maximum of 500mA and are OPTO isolated to avoid noise-related problems

Nb: For the 9 buttons below the LCD see Section 5 – LCD Control Buttons

BKS1 input turns on to indicate Brake 1 has lifted fully

Brake lift is monitored via a brake switch on the hoist machine, which inputs 0V to BKS1 input for Brake 1 when

fully lifted. If 2 brakes are used, BKS2 input monitors Brake 2. If only 1 brake used, connect brake switch to both

BKS1 and BKS2 inputs

Malfunctioning brake shall cause either of 2 fatal errors – BSD or BST. Reset is only via a processor POR.

BSD and BST errors shall be disabled when the lift is on inspection

BSD – BRK Drop Timeout error - When the brake does not drop 1 second from when lift stops.

Note: BSD error shall only set when the doors are closed to enable lift to re-level with the doors open

BST – BRK Lifting Timeout error – When the brake has not lifted after a run has been initiated

The door open button shall remain operative to allow passengers to exit the lift. Re-levelling is inhibited

BST error can be selected as an "immediate stop" or "stop next floor" error. See EEPROM settings, BST

BKS2 input turns on to indicate Brake 2 has lifted fully. Operation as per BKS1

Brake relay output contacts used to control the brake on traction jobs and the door lock valve on hydraulic jobs

See also Section 6: Motion, for more on the relay operation

Section

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