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Part 1 InstallationChapter 6 Safety Circuit
Part 1 Installation
3. Safety Circuit for Q/QCT Type (Global Specification) Controller
The global controller has no internal drive-source cutoff circuit so that the user can configure a desired drive-
source cutoff circuit externally to the controller to conform to the required safety category.
The safety circuit consists of two circuits: the emergency-stop (EMG) circuit and enable (ENB) circuit. Each
circuit adopts a redundant design, so a safety circuit conforming to a higher safety category of up to level 4 can
be configured using an external drive-source cutoff circuit.
Since this controller has no built-in drive-source cutoff circuit, be sure to install a drive-source cutoff circuit in the
motor power circuit. It is recommended that the control power supply be wired from the same power source as
the motor power supply at a point before the drive-source cutoff part is connected.
Please note that IAI is not liable for any losses arising from a malfunction of the safety circuit configured by the
user.
The ANSI safety standards can be met only when an ANSI teaching pendant is connected to the teaching port.
The redundant emergency-stop lines and enabling lines are designed with the assumption that they will be
driven by a power source external to the controller. Note, however, that the inputs to the contacts that instruct
emergency-stop action and enabling action operate on the internal power supply. Bear this in mind and wire
these contacts properly.
Do not use the internal power supply provided for the system I/O connector, for any other purpose. It may
damage the equipment or cause it to malfunction.
The tables below list the signals and wiring methods of the safety-circuit interface connector. The connector pin
assignments and internal circuit components are the same as those of the standard specification.
System I/O Connector for Q/QCT type
weivrevOmetI Details
COMBICON (2-row, 9-pin) MCD1.5/9-G1-3.5P26THR (by Phoenix Contact)
Cable-end connector FMC1.5/9-ST-3.5
Connector
61ot42GWAeziseriwelbacilppA
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