MCE SmarTRAQ - Reopening and Reclosing Operations

Troubleshooting
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IF… Doors bump when opening or closing:
1. Slowdown points “P2” or “P7” are too near full open or close positions. Reduce “P2” or
“P7”.
2. Deceleration values “A1” or “A3” are too low. Increase “A1” or “A3”.
3. Low speeds “U2” or “U4” are too high. Reduce “U2” or “U4”.
4. Opening and closing speeds “U1” or “U3” are too high and doors are heavy with low
mechanical ratio so braking power required exceeds operator ratings.
5. “Cb” parameter is at a low value so braking action has been reduced too much.
IF… While opening or closing, especially during acceleration, doors stop and red LED
turns ON:
1. Check AC input voltage. Be sure there is not excessive voltage drop, measured at termi-
nals L1D and L2D, while opening or closing, especially during acceleration.
Note
Make certain that hoistway doors are engaged while checking for excessive voltage drop.
Reopening and Reclosing
Reopening and reclosing are accomplished by setting parameters “Po”, “Pc”, “Pr”, “Ar”, “Ab”.
During reopening, the function of parameters “P2” and “A1” is substituted for by “Po” and “Ar”.
During reclosing (Fire Phase II “peek-a-boo” operation), the function of parameter “P7” is sub-
stituted for by “Pc”. “Ab” regulates reversal braking.
Parameter “Pr” sets the transitional edge between “normal opening” and “reopening.” This
parameter should be kept at 00 except in rare cases where mechanical ratio between motor and
doors varies and dramatically changes speed.
IF… During reopening, doors bump, parameter “Po” is set too high and/or “Ar” is set too
low.
1. Increase “Ar” and/or reduce “Po” until correct compromise is found.
IF… During reclosing, doors bump
1. Parameter “Pc” is set too high. Reduce “Pc”.
IF… During reopening, doors decelerate too rapidly, parameter “Po” is set too low and/or
“Ar” is set too high.
1. Increase “Po” and/or reduce “Ar” until correct compromise is found.
IF… During reclosing, doors decelerate too rapidly, Parameter “Pc” is set too low:
1. Increase “Pc”
IF… During reopening or reclosing, deceleration point changes dramatically depending on
position where reversal is commanded, parameter “Pr” has probably been set to a value other
than 00 or has been set too high.
1. Reduce “Pr” until there are no inconsistencies. If not strictly necessary, set “Pr” at 00.