The Safety Pal Functions - GAL GALaxy eHydro Manual

GALaxy eHydro Elevator Controller

4.5 The Safety PAL Functions

The Safety PAL monitors the Main CPU RUN and Door Zone outputs, the NTS Terminal Limit and Door
Zone outputs, car Inspection and Door Gate/Lock inputs, and the speed outputs from both the Main
CPU and the NTS. The Safety PAL's job is to interrupt or prevent a run operation in case of an unsafe
conditions.
Run Control - CPU Control outputs gated by Safety PAL:
SU – Solenoid Up Command
SD – Solenoid Down Command
SUF – Solenoid Up Fast Command
SDF – Solenoid Down Fast Command
Door Zone Status – CPU Control and NTS MCU Control UL – Up Level
DL – Down Level
DZ – Door Zone
SEL_OK – Communications to Selector OK and no Selector Fault
SPD150 – Speed greater than 150 fpm
SPD75 – Speed greater than 75 fpm
Door Status:
DLT – Door Lock Top
DLM – Door Lock Middle
DLB – Door Lock Bottom
GBP – Gate Bypass
LBP – Lock Bypass
Inspection Status & Control:
AUTO– Automatic Operation
ICI – In Car Inspection
ACC – Access
TAU – Top Access Up
TAD – Top Access Down
BAU – Bottom Access Up
BAD – Bottom Access Down
Terminal Limit Status – NTS MCU Control outputs gated by Safety PAL:
UN – Up Normal Limit
UT – Up Terminal Slowdown
DN – Down Normal Limit
DT – Down Terminal Slowdown
Figure 4-1 illustrates all the Main CPU, NTS Processor and Safety PAL functions:
MC – Motor Contactor
MC1 – Dual Motor Contactor
STE – Soft-Starter Enable
RUN – Run Relay Command
GS – Car Gate Switch or Lock
RLM – Rear Lock Middle
RGS – Rear Gate Switch or Lock
GLB – Gate/Lock Bypass
INS– Car Top Inspection
IU – Car Top Inspection Up
ID – Car Top Inspection Down
MRIN – Motor Room Inspection
MRIU – Motor Room Inspection
UP
MRID – Motor Room Inspection
Down
Section 4 - Troubleshooting
4-3