Installing the Hoistway Limit Switches
3-19
3
iControl DC
iLink Cartop Wiring Verification
1. Examine the -CT drawings in the job prints package.
2. Carefully verify that all connections have been correctly made and are clean and secure.
Each job is different. The job prints accurately reflect the survey information and are the pri-
mary source for installation and wiring information. Review them carefully.
Installing the Hoistway Limit Switches
There are several kinds of limit switches available. If you are using MCE switches, consult the
documentation accompanying the switches and the MCE job prints. If you are using switches
other than MCE, consult the manufacturers documentation and the MCE job prints. In general
(for cam-operated switches):
• Be sure that the cam operating the limit switches keeps the slowdown limit switches open
until the normal direction limit switch is broken.
• Be sure that both the normal and final limit switches are held open for the entire run-by
travel of the elevator.
• For faster elevators, the surface of the cam that operates the limit switches must be suffi-
ciently gradual so that the impact of the switch rollers striking the cam is relatively silent.
After Terminal Switches (UNT5/DNT5) are installed, verify Inspection Low Speed (iView/Pat-
tern/Inspection) is set to 25 fpm and is enabled. UNT and DNT 5 switches are always used in
iControl installations.
Installing the Load Weigher
If a cross-head deflection load weigher is specified for this job, please refer to the installation
and calibration instructions supplied with the load weigher. If an EMCO rope tension sensing
load weigher is specified, See “EMCO Load Weigher” on page 52.. If an MCE isolated platform
load weigher is specified, See “MCE Load Weigher” on page 61. (or the instructions shipped
with the load weigher) and to the job prints for installation instructions.
Additional information regarding load weigher selection and threshold settings are provided in
Section 4. Please refer to “Load Weigher Adjustment for Dispatching ” on page 4-36.
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