Moog DS2110, Инструкция по установке и эксплуатации

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APPENDIX C – RESTART INTERLOCK CIRCUITS C-11
CDS7324 (FORMERLY LSF-0819)
Rev. A INSTALLATION & USER’S MANUAL
C.7.1 Description of the RESTART INTERLOCK FUNCTION
To achieve a controlled stop it is necessary to stop the motor before the activation of the HW and SW safety
channels.
Configure digital input 1 as a Quickstop function; see
DS2110_Sec_05 Functionality Overview.doc - PanelT361DigInp
.
Ensure that the quickstop mode (parameter: qstmod) is set to 1 i.e. the drive disables once the quickstop is
applied. Set the parameter velstdby to the motor maximum velocity – this ensures that the motor brake, if present,
is applied immediately on activation of the Quickstop signal.
Ensure that the digital input invert (parameter: diginpinv(1)) is set to 1 – this allows a LOW signal to enable the
quickstop input.
By default, when a Quickstop occurs, the motor brake is applied. There is a default delay of 100mS between the
brake being applied and the drive disabling (parameter: brgbrktimout).
The drive enable signal is mapped to digital output 1 by default. Once the drive is disabled, this output goes low:
see DS2110_Sec_05 Functionality Overview.doc - PanelT361DigOut
When the door is opened output 13-14 of the A1 module sends a stop signal to the PLC. The PLC sets the
QUICKSTOP signal LOW in order to stop the motor with the maximum torque available. The drive disables after
the 100mS delay and it is then possible to activate the SW and HW channels.
The axis-stopped status can be communicated to the PLC via digital output DIG_OUT1, not shown in the figure.
This reflects the enable status of the drive in this example.
Software Channel
•
When the door is opened, the door control module (output 13-14 of A1) activates the input of the PLC, which,
after the 100mS delay, disables the axis according to the sequence of par C.4.2, by removing the DRIVE
ENABLE signal (input DRV EN)
•
The correct operation of the SW channel cannot be verified.
Hardware Channel
•
When the door is opened, the door control module (delayed output 33-34 of A1) opens the inputs of the
hardware channels after a 100mS delay.
•
If the NC contacts of the safety relays 1 and 2 do not close, the KM1 contactor is de-energized and the power
supply to the drive is switched off
•
If the drop-out time of the relays 1 and 2 (approx.100 ms) is less than the drop-out time of the KM1 contactor,
the KM1 contactor will be de-energized at the opening of the doors. In this case it is possible to add a
capacitor in parallel to the coil of KM1 in order to avoid the de-energization when the door is opened.
•
The application example checks the status of relays 1 and 2 only at the de-energization (NC contacts closed)
and not at the energization (NC contacts opened). In this case it is not possible to detect a short circuit. Thus,
the cables must be mechanically protected.