Troubleshooting
6-90 Manual # 42-02-7223
ICE-EB Emergency Brake Board
The Emergency Brake board is used in iControl AC and DC elevator controllers to control a
hoist motor-mounted emergency brake. The emergency brake is typically a separate friction
brake mounted on an extended or secondary sheave.
Figure 6.5 ICE-EB Emergency Brake Board
The user makes no direct connections to this board. Refer to job prints for circuit information.
Table 6.10 ICE-EB Board Inputs and Outputs
Connector Signal Connector Signal
EBP1: 0VAC= Brk picked, 120VAC= Brk engaged
1: Common
EBP2: 0VAC= Brk picked, 120VAC= Brk engaged 24X2: 24VDC input
EBP3: 0VAC= Brk picked, 120VAC= Brk engaged 24: 24VDC input
EBP4: 0VAC= Brk picked, 120VAC= Brk engaged 2: 120VAC input
EBS1: 120VAC= Brk OK (picked)
EBS2: 120VAC= Brk OK (picked)
EBR1: 120VAC= Brk picked, 0VAC= Brk engaged
EBR2: 120VAC= Brk picked, 0VAC= Brk engaged
Factory wiring connections
Central interconnect/control bus
Factory wiring connections
Unintended Motion
Fault reset button
Signal presence
indicators
Voltage test
points
Left-to-Right
GND
+3.3V
+5V
Safety Processor Poll
SPA
SPB
Unintended Motion
Fault indicator
Fuse FEB2
1/2A, 250V, AGC
120VAC input
LED lighted = Fuse OK
Fuse FEBP
1/10A, 250V, MDQ
24VDC input
LED lighted = Fuse OK
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