OM-1078-002 - 第30页
BPH505 4.2.2 [Closed Rack Shutter (Operator Side) Check] Sensor When the rack shutter on the operator side is open, this sensor works to prevent the machine from being operated. Sensor Name Symbol Countermeasures [Closed…
BPH504R (Light Receiving Side)
BPH504T (Light Emitting Side)
4.2 Protective Sensors
This session describes the main sensors that are provided for machine
protection.
4.2.1 [Ejected Pallet Detection] Sensor
When a pallet is not seated correctly in place, these sensors are acti-
vated to prevent the machine from being operated.
Sensor Name Symbol Countermeasures
[Ejected Pallet Detection]
Sensor
Fig. X22
Table X9
When this sensor has detected an error, the following
measures are taken.
• When an error has been detected during operation,
the elevator shaft decelerates and stops with the ser-
vomotor being tuned off.
BPH504
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AHI01EGP
4.2 Protective Sensors
BPH505
4.2.2 [Closed Rack Shutter (Operator Side) Check] Sensor
When the rack shutter on the operator side is open, this sensor works
to prevent the machine from being operated.
Sensor Name Symbol Countermeasures
[Closed Rack Shutter
(Operator Side) Check]
Sensor
Fig. X23
Table X10
When this sensor has detected an error (the shutter is
opened), the following measures are taken.
• When an error has been detected during operation,
the elevator shaft decelerates and stops with the ser-
vomotor being tuned off.
BPH505
4.2 Protective Sensors
0204-002 28 AHI01EGP
BPH520
BPH521
ALL
READY
CHANGE
HOME
POSITION POWER
ELEV.
4.2.3 [Missing Pallet (Return Position) Detection] Sensors
This sensor enables the operator to check if a pallet exists or not during
drawout and return operations.
Sensor Name Symbol Countermeasures
[Right Missing Pallet
(Return Position)
Detection] Sensor
[Left Missing Pallet
(Return Position)
Detection] Sensor
Fig. X24
Table X11
When one of the left sensors has detected an error, the
following measures are taken.
• An error occurs when either one of the sensors de-
tects that a pallet is missing during pallet drawout
operation.
• An error occurs when either one of the sensors de-
tects that a pallet exists during pallet return opera-
tion.
BPH520
BPH521
4.2 Protective Sensors
0311-003 29 AHI01EGP