6-112 Manual # 42-02-2223
Troubleshooting
LOCKS/CONTACTS
GS Gate Switch input. The gate switch makes up when the elevator doors
close. When the switch is made, there will be 110 VDC on this input. When
the switch is open, there will be 0 VDC on this input. The gate switch may
be wired in series with other switches or locks on the elevator doors (as
shown in the job prints) so that if any of the switches do not make, the GS
input will remain low and the car will not run.
DLAT Door Lock Access Top input. When a top hoistway access is provided (see
INA, ATU, and ATD), the hoistway door lock associated with that landing is
connected between the #3 bus and this input. When the switch is made,
there will be 110 VDC on this input. When the switch is open, there will be
0 VDC on this input and the car will not run unless INA is active and then
only in response to the ATU or ATD input.
DLMS Door Lock Main String input. If top and bottom hoistway access (see INA,
ATU, ATD, ABU, and ABD) is not provided, all hoistway door locks are
wired in series between the #3 bus and DLMS. When the switches are
made, there will be 110 VDC on this input. When any switch is open, there
will be 0 VDC on this input and the car will not run.
DLAB Door Lock Access Bottom input. When a bottom hoistway access is pro-
vided (see INA, ABU, and ABD), the hoistway door lock associated with
that landing is connected between the #3 bus and this input. When the
switch is made, there will be 110 VDC on this input. When the switch is
open, there will be 0 VDC on this input and the car will not run unless INA
is active and then only in response to the ABU or ABD input.
DCAT Door Contact Access Top input. When a top hoistway access is provided
(see INA, ATU, ATD, and DLAT), the hoistway door contact associated with
that landing is connected between the #3 bus and this input. When the
switch is made, there will be 110 VDC on this input. When the switch is
open, there will be 0 VDC on this input and the car will not run unless INA
is active and then only in response to the ATU or ATD input.
DCMS Door Contact Main String input. If top and bottom hoistway access (see
INA, ATU, ATD, ABU, and ADB) is not provided, all hoistway door contacts
are wired in series between the #3 bus and DCMS. When the switches are
made, there will be 110 VDC on this input. When any switch is open, there
will be 0 VDC on this input and the car will not run.
DCAB Door Contact Access Bottom input. When a bottom hoistway access is pro-
vided (see INA, ABU, ABD, and DLAB), the hoistway door contact associ-
ated with that landing is connected between the #3 bus and this input.
When the switch is made, there will be 110 VDC on this input. When the
switch is open, there will be 0 VDC on this input and the car will not run
unless INA is active and then only in response to the ABU or ABD input.
GOV Governor input. The governor is connected between the #3 bus and this
input. When the governor switch is made, there is 110 VDC on this input.
It the governor switch trips/opens, there is 0 VDC on this input and the car
will not run.
SP 1 Spare input 1. If used, connect as shown in the job prints.
Table 6.21 iBox Field Connections on ICE-SAF Board
Source Connection Signal Description
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