Hitachi WJ200-001L, Instruction Manual

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Introduction
The Gate Suppress function can be utilized to perform a safe stop according to the
EN60204-1, stop category 0 (Uncontrolled stop by power removal) (as STO function of
IEC/EN61800-5-2). It is designed to meet the requirements of the ISO13849-1 Cat.3
PLd, IEC61508 SIL2 and IEC/EN61800-5-2 SIL2 only in a system in which EDM
signal is monitored by an “External Device Monitor”.
Stop Category defined in EN60204-1
Category 0: Uncontrolled stop by immediate (< 200 ms) shut-down of the power supply
to the actuators.
(as STO function of IEC/EN61800-5-2)
Category 1: Controlled stop by interrupting the power supply to the actuator level if, for
example, the hazardous movement has been brought to a standstill
(time-delayed shut-down of the power supply).
(as SS1 function of IEC/EN61800-5-2)
Category 2: Controlled stop. The power supply to the drive element is not interrupted.
Additional measures to EN 1037 (protection from unexpected restart) are
necessary.
(as SS2 function of IEC/EN61800-5-2)
How it works
Interrupting the current to GS1 or GS2, for example
removing the link between either GS1 or GS2 and PLC
or both GS1/GS2 and PLC disables the drive output,
i.e. the power supply to the motor is cut by stopping
the switching of the output transistors in a safe way.
EDM output is activated when GS1 and GS2 are given
to the drive.
Always use both inputs to disable the drive. EDM
output conducts when both GS1 and GS2 circuits are
working properly. If for any reason only one channel is
opened, the drive output is stopped but the EDM
output is not activated. In this case the Safe Disable
input wiring must be checked.
Activation
Turning on the safety switch automatically assign the
GS1 input and GS2 input automatically.
To assign EDM (External Device Monitor) output,
please turn the EDM function switch on. EDM output
is automatically assigned on intelligent output
terminal 11.
(When safety switch or EDM switch is turned off, the intelligent input and output
terminal assigned on will be set as "no" function, and contact will remain normally off.)
Always use both inputs to disable the drive. If for any reason only one channel is
opened, the drive output is stopped but the EDM output is not activated. In this case
the Safe Disable input wiring must be checked.
Safety function
switch
EDM function
switch
ON OFF
ON
(EDM)
OFF
(normal)