MCi iControl User Manual page 698

Reference
Table 11.3 iBox Field Connections
Source Connection
BD
TB
BRD
BDRD
MD
TM
MRD
MDRD
SAFC
SAFH
SP1 D
SP2 D
SP2
SP3
SP4
11-12 Manual # 42-02-2222
Brake Drive relay indicator. When the BD relay on the iBox IRB board is
closed to pick the brake, this LED will light. Monitored by Safety Proces-
sor A.
Brake Triac active indicator. When the brake triac on the iBox IRB board
is active (completes circuit for BD relay), this LED will light. Monitored by
Safety Processor B.
Brake Redundancy indicator. This LED lights when the main brake con-
tactor drops out.
Brake Drive Redundancy indicator. This LED lights when the BD relay
drops out.
Motor Drive relay indicator. When the MD relay on the iBox IRB board is
closed to enable the motor, this LED will light. Monitored by Safety Pro-
cessor A.
Motor Triac active indicator. When the motor triac on the iBox IRB board
is active (completes circuit for MD relay), this LED will light. Monitored
by Safety Processor B.
Motor Redundancy indicator. This LED lights when the main motor con-
tactor drops out.
Motor Drive Redundancy indicator. This LED lights when the MD relay
drops out.
Safety Cartop input. Cartop safety relays and switches are wired in
series between SAFH (Safety Hoistway) and SAFC. If any contact in the
safety string opens, there will be 0 VDC on this input and the car will not
run. If all safety contacts in the string are closed, there will be 110 VDC
on this input.
Safety Hoistway input. Hoistway safety relays and switches are wired in
series between the #3 bus and SAFH. The path also includes the Gover-
nor switch, with the GOV connection providing access to the #3 bus via
the governor switch. (#3 to GOV through governor switch, GOV to SAFH
through hoistway safety relays and switches). The job prints for the job
provide specific wiring instructions. If any contact in the safety string
opens, there will be 0 VDC on this input and the car will not run. If all
safety contacts in the string are closed, there will be 110 VDC on this
input.
Optional input. Job prints will show if and how this is used on a per
installation basis.
Optional Brake Pick switch input. When brake is set = 110 VDC. When
brake is picked (brake pick switch open) = 0 VDC.
Optional input. Job prints will show if and how this is used on a per
installation basis.
Optional input. Job prints will show if and how this is used on a per
installation basis.
Optional input. Job prints will show if and how this is used on a per
installation basis.
Signal Description