Overview
This article outlines the required mechanical, wiring, and operating mode considerations before installing the YD30S Single Sideload Lock. It helps installers assess mounting options, wire routing, power limitations, and fail safe or fail secure operation to ensure proper installation and reliable performance.
Mounting Assessment
The first decision regarding installation is whether the SL30SGL will be mortised or surface mounted. Mortise installation ensures a discreet solution as the lock and strike plate can be embedded into the door leaf and frame.
However, in some instances, this is not possible. Glass doors, for example, require surface mounting, which is done with the aid of the SL30SGL housing and dress plate (available separately).
The lock and strike plate can be installed mortised (1), surface mounted (2), or a combination of the two (3). Regardless of the installation method it is vital that the lock face plate and strike plate are aligned vertically to each other and that the gap between them does not exceed 6mm (1/4 inch) when the door is closed.
When the door is closed, the resting position of the door leaf can be misaligned up to 8mm (5/16 inch) from the door frame and the SL30SGL will pull the door into alignment with ease. This misalignment could be caused by an installed weather seal or natural distortions in the door assembly.
The SL30SGL can be installed vertically or horizontally but is not designed to be mounted in a floor cavity firing upwards or in a wet environment. Must be installed vertically for UL10C applications.
Wire Assessment
Before installation begins, consideration must be made for where to run the wires and decide on what feedback is required from the lock. There are seven available connections in total; three are compulsory power/control connections whilst the remaining four provide optional door and bolt position feedback. These optional connections can be integrated into access control or alarm systems to provide full monitoring.
The correct gauge of wire needs to be chosen as voltage drop across the power/control wires can limit the locks operation. For all the remaining connections, a lower gauge wire can be used as these are only signal wires. The following table shows the maximum distance that the wire runs can be between the power supply and the lock, assuming the power supply outputs 12VDC or 24VDC.
| Conductor Cross Sectional Area | Maximum Distance | ||
| #AWG | (mm²) | at 12VDC | at 24VDC |
| 24 | 0.20 | 10m (33ft) | 30m (98ft) |
| 22 | 0.33 | 16m (52ft) | 48m (157ft) |
| 20 | 0.52 | 26m (85ft) | 77m (253ft) |
| 18 | 0.82 | 41m (135ft) | 122m (400ft) |
| 16 | 1.31 | 65m (213ft) | 195m (640ft) |
| 14 | 2.08 | 103m (338ft) | 310m (1017ft) |
Operating Mode Assessment
The SL30SGL can be set to one of two operating modes before installation: Fail Safe or Fail Secure.
When the operating mode is set to Fail Safe, supply voltage is applied to the control input to lock the door, and the SL30SGL will unlock in the event of power loss.
When the operating mode is set to Fail Secure, supply voltage is applied to the control input to unlock the door, and the SL30SGL will lock or remain locked in the event of power loss.
The failure mode of the SL30SGL is factory set as Fail Safe. Before the lock is installed, this can be changed to Fail Secure by repositioning the switch located at the end of the product.