System Installation
MM-TA-12B Muting Module
Instruction Manual
3.6.1 Temporary Power and Initial Checkout
1)
Connection of system DC power is at pin 1 (+24V dc) and pin 6 (0V dc) of
the machine interface connector (see Section 3.4 and Figure 3-3). All wiring
must comply with NEC and local wiring codes. Do not operate the MM-TA-
12B Muting Module without a proper earth ground connection at pin 7 of the
Machine Interface connector, or at the earth ground screw on the housing.
2)
Leaving power to the guarded machine OFF, power up the MM-TA-12B and
the safety systems connected to the MSSI and the USSI inputs.
3)
Perform system checkout procedures for the external safety systems con-
nected to the MSSI and USSI inputs as described by the appropriate manu-
als. Do not proceed further until all checkout procedures are completed suc-
cessfully and all problems have been corrected.
4)
Verify that the external safety systems are providing a Green/GO signal to the
MSSI and USSI inputs (i.e., Banner OSSD sourcing signal or a closed con-
tact connected to the “Signal” pin of each interface). Verify that the green
Channel indicators (two pairs of LEDs located near each connector) are ON.
NOTE: If the USSI is not to be used, pin 1 must be jumpered to pin 4, and pin 2
must be jumpered to pin 3 (factory default). Do not short Channel A to
Channel B. See Section 3.5.5.
5)
Auto Reset Configuration:
Verify that the Green status LED is ON, indicating
that the OSSD outputs are ON, and that a “—” appears on the Diagnostic
Display. If not, or if the Red status indicator begins to flash at any time, refer
to Section 5 for troubleshooting information.
Manual Reset Configuration:
Verify that the Yellow status LED is flashing to
indicate that a reset is being requested, and that a “—” appears on the
Diagnostic Display. If not, or if the Red status indicator begins to flash at any
time, refer to Section 5 for troubleshooting information.
Perform a manual reset by closing the Reset Input for at least 1/4 second,
but not longer than 2 seconds, and then reopening the contact. Verify that
the Green status Indicator comes on steady. The MM-TA-12B OSSD outputs
should be ON at this time.
6)
Cycle the MSSI and the USSI (if used) individually and ensure that the Green
status indicator goes OFF, and that a reset is possible after the Interface is
closed.
If any of these checks fail, do not attempt to use the system until the reason
for the failure(s) is identified and corrected.
If the Muting function is not used, proceed to Section 3.7.
During the initial checkout procedure of the Muting feature, if possible, verify that
the power has been removed or is otherwise not available to the machine actua-
tors responsible for hazardous motion. At all times ensure that personnel are not
exposed to any hazard.
7)
Mute the System by blocking (or activating) both mute devices (typically
M1- M2) simultaneously (within 3 seconds).
8)
Verify that the Mute indicator comes ON. If not, check the indicator and its
wiring, and check the Diagnostic Display for error codes.
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