Manual, Control Module, PROFINET, DL12
Document #9620-20-C-DL12-06
Pinnacle Park • 1031 Goodworth Drive • Apex, NC 27539 • Tel: 919.772.0115 • Fax: 919.772.8259 •
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4.3.13 UNSAFE UNLATCH
An UNLATCH command shall only be performed if the following conditions are met:
• SSO1, SSO2, V1RELAY, and V2RELAY must be ON indicating that the Tool Changer is
nested safely in the Tool Stand.
•
Everything is OK bit must be ON indicating no errors.
• The LATCH bit must be OFF.
•
The UNLOCKED bit must be OFF.
• US1_Power_Present bit must be ON.
• US2_Power_Present bit must be ON.
The UNSAFE_UNLATCH bit will be set when the user sends an unsafe unlatch command. This
condition is monitored immediately after an UNLATCH command and will disable the Unlatch and
turn off Unlatch immediately. If UNLATCH is inadvertently held high during a power cycle the
UNSAFE_UNLATCH error will be generated. This error bit will be reset when a new UNLATCH
command is received (UNLATCH command removed and reapplied) and the UNLATCH_
ENABLE conditions are met or with the rising edge of the Clear Errors bit.
4.3.14 VALVE ERROR
If the module detects an error in the function of either valve, a VALVE_ERROR bit shall be set.
Reference the 9620‑20‑C‑Jxx Valve Adapters with Dual Double Solenoid, Valve Pass Through,
Proximity and Pressure Sensors for potential valve failure modes. Valve errors set the SYSTEM_
IS_UNSAFE bit so the Clear Errors bit required to clear.
