A: Terminal forced deceleration switch:
When the speed of the elevator=1.00m/s, install two deceleration switches SDS1 and SUS1, among which low-speed down deceleration switch is 1.4m from lower limit and low-speed up deceleration switch is 1.4m from upper limit;
When the speed of the elevator=1.50m/s, install two deceleration switches SDS1 and SUS1, among which low-speed down deceleration switch is 1.8m from lower limit and low-speed up deceleration switch is 1.8m from upper limit;
When the speed of the elevator=1.75m/s, install two deceleration switches SDS1 and SUS1, among which low-speed down deceleration switch is 2.2m from lower limit and low-speed up deceleration switch is 2.2m from upper limit;
When the speed of the elevator=2.00m/s, besides two deceleration switches SDS1 and SUS1, another group of deceleration switches SDS2 and SUS2 needs to be installed, among which low-speed down deceleration switch is 1.4m from lower limit, low-speed up deceleration switch is 1.4m from upper limit, medium-speed down deceleration switch is 3.0m from lower limit and medium-speed up deceleration switch is 3.0m from upper limit;
When the speed of the elevator=2.50m/s, besides two deceleration switches SDS1 and SUS1, medium-speed deceleration switches SDS2 and SUS2 and high-speed deceleration switches SDS3 and SUS3 need to be installed, among which low-speed down deceleration switch is 1.4m from lower limit, low-speed up deceleration switch is 1.4m from upper limit, medium-speed down deceleration switch is 2.2m from lower limit, medium-speed up deceleration switch is 2.2m from upper limit, high-speed down deceleration switch is 4.5m from lower limit and high-speed up deceleration switch is 4.5m from upper limit.