Basic Safety String and Associated Wiring
42-02-7223 C1 2-15
2
iControl DC
Basic Safety String and Associated Wiring
The elevator must not be run until the safety string is connected. Safety string wiring includes:
• Emergency Stop switch
• Hoistway safety switches
• Cartop safety CTS Relay temporary bypass (for Construction Mode use only)
Please refer to “Safety String Bypass Jumper” on page 6-3 for safety bypass related informa-
tion.
Cartop Safety Switches
Depending upon the job, cartop safety switches may include:
• Safety Clamp Switch
•Emergency Exit Contact
•Emergency Stop Switch
•CTS Relay (iLink)
The wiring instructions for these switches are on the job prints.
1. Refer to the job prints.
2. Wire the cartop safety switches as shown.
The Cartop Safety Relay is located in the cartop interconnect box. If the box is not yet installed,
the relay must be temporarily bypassed to get the car operating in construction mode. For now,
using the switches and terminals available to you, wire as much of the string as you are able.
Hoistway Safety Switches
The wiring instructions for these switches are on the job prints.
1. Refer to the job prints.
2. Wire the hoistway safety string switches as shown.
Temporary CTS Relay Bypass
If the iLink cartop interconnect box which contains the Cartop Safety (CTS) Relay is not yet
installed, you must bypass the CTS relay temporarily (for Construction Mode only). (If you are
installing the iLink cartop box now, please refer to the iLink instructions in Section 3.)
1. Refer to the job prints.
2. Connect the safety string in series between the iBox SAFH and SAFC terminals.
3. You must provide an Emergency Stop switch in series between SAFH and SAFC.
Make sure the Emergency Stop switch is wired in series between SAFH and SAFC to allow emergency
stopping while working on the cartop.
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