Toledo PWi Forging, User Manual

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PWi Forging User’s Manual
Doc #17663 Rev A Page
Toledo Integrated Systems
25
Shutdown Relays
The PWi Forging provides a Top Stop Relay and an E-Stop (Emergency Stop) Relay. When
enabled, the E-Stop Relay is used to stop the press immediately in case of a capacity violation.
Each relay provides both Normally Open (N.O.) and Normally Close (N.C.) contacts. A toggle
switch is provided to manually bypass the shutdown relays, if necessary.
**CAUTION**
Bypassing the shutdown relays is a potentially dangerous situation.
The monitor will not shut down the press when this switch is in the
bypass position. Equipment can be damaged and personnel may be
seriously injured without shut down protection.
Use Conduit Hole #3 (see Figure 1.4) for the Shutdown Relay Wiring.
Bypass Switch
NC COM
T-STOP
SHUTDOWN RELAYS
NO COM NC NO
E-STOP
CAM2
T-STP
BYP
E-STP
5Vd
Tx
12Vd
CAM1
Rx
T-STP ON = TOP STOP RELAY IS OPEN
E-STP ON = E-STOP RELAY IS OPEN
BYP ON = SHUTDOWN RELAYS ARE BYPASSED
BYPASS
Figure 1.18: Shutdown Relay Wiring
Shutdown Relay Terminals
T-Stop = For use in the Press Top Stop circuitry.
E-Stop = For use in the Press Emergency Stop circuitry.
Note that using the E-Stop under heavy loads
may result in the ram becoming locked at the bottom.
Refer to the Configuration Menu section for
instructions on enabling the E-Stop relay.
Relay Contacts
NC
= Normally Close Contact
C = Common
NO = Normally Open Contact
Ratings: 8 AMP @ 250VAC or 30VDC
Type: Mechanical Relay