26 D0559 Rev. A SlideDriver/SlideDriver 50VF Series www.hysecurity.com
tHe InHerent entrapment sensor (Ies)
The IES on HySecurity hydraulic operators is a primary entrapment device that is required by UL 325 as a type “A”
detection device. It is tripped through software programming OR hydraulic pressure settings. It does not function
solely on its own accord and must be connected to the Smart Touch Controller. The sensitivity and response of
the IES when tripped is factory set, but can be adjusted through the Installer Menu items:
• SE (Inherent Sensor sensitivity)
• SS (Inherent Sensor function)
• SR (IES reverse to open)
Smart Touch Controller™ – Installer Menu Functions for IES
Installer Menu
Display Code
Setting Options
(Bold – Factory Settings)
Description
SE 2
IES SENSITIVITY
1 = max. sensitivity
2 = Default setting
9 = least sensitivity
Adjusts the sensitivity of the internal inherent entrapment sensor (IES).
Available settings are 1 to 9 with 9 being the least sensitive. HySecurity
strongly recommends that you avoid setting the IES sensitivity higher
than 6.
Note: Adjust pressure relief valve on hydraulic operators for security
and gate impact purposes prior to changing IES sensitivity. Refer to
the operator’s manual for steps involved in adjusting the pressure relief
valve setting.
SS 0 (OFF)
IES STOP ONLY
0 = stop, reverse for 2s
1 = stop only
In a Usage Class IV environment, the operator can be set to stop the
gate and not reverse gate travel after and IES trip.
SR 0 (FULL OPEN)
REVERSAL LOGIC
0 = IES reverses full open
1 = 2 second reversal only
The default setting is a 2-second duration reversal if the inherent sensor
is triggered. The optional setting of 0 will cause the gate to reopen fully
if triggered while closing.
Manufacturer’s responsibility
• Build into the gate operator a means of detecting an obstruction or an inherent entrapment detection
device (UL 325 30A.1.1)
• Accept input from external entrapment detection devices
• Provide warning signs and an installation manual which, if followed, will result in a UL 325 compliant
installation
Pressure Relief Valve – All Hydraulic Operators:
• Limits hydraulic system pressure
• By-passes uid to tank when set-point exceeded
• By-passed uid triggers the IES
NOTICE: Pressure relief valve adjustments establish the threshold for the Inherent Entrapment Sensor (IES). The
optimal pressure setting produces uniform gate travel and trips the IES when the gate encounters an obstruction.
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