© Mitsubishi Forklift Trucks 2013. All
© Mitsubishi Forklift Trucks 2013. All
rights reserved.
rights reserved.
Revision: B
Revision: B
Document ID: 615023
Document ID: 615023
207 (244)
207 (244)
PBV20N2
PBV20N2
Service
Service Manual
Manual
15.11.2
15.11.2 Zapi EPS A
Zapi EPS AC0 Power
C0 Power Controller
Controller
The EPS AC0 inverter has been developed to perform steering functions that are
The EPS AC0 inverter has been developed to perform steering functions that are
usually present in walkie and rider pallet trucks,
usually present in walkie and rider pallet trucks, stackers and low-level order pickers.
stackers and low-level order pickers.
The controller can perform the
The controller can perform the following functions:
following functions:
•
•
Steering controller for AC
Steering controller for AC asynchrono
asynchronous 3-phase motors
us 3-phase motors
•
•
Digital control using two
Digital control using two microprocesso
microprocessors
rs
•
•
CAN bus interface
CAN bus interface
•
•
Both microprocessors are CAN
Both microprocessors are CAN bus connected
bus connected
•
•
Encoder interface
Encoder interface
•
•
Stepper motor or twin pot interface
Stepper motor or twin pot interface
•
•
Analogue
Analogue feedback p
feedback pot interface (102
ot interface (1024 steps resolut
4 steps resolution)
ion)
•
•
Analogue
Analogue KTY84-130
KTY84-130 thermal senso
thermal sensor input
r input
•
•
Analogue in
Analogue input with 102
put with 1024 steps resoluti
4 steps resolution (one inpu
on (one input)
t)
•
•
Analogue in
Analogue input with 409
put with 4096 steps resoluti
6 steps resolution (one inpu
on (one input)
t)
•
•
Two digital inputs
Two digital inputs
•
•
Double safety relay inside
Double safety relay inside
15.11.3
15.11.3 Zapi EPS A
Zapi EPS AC0 connec
C0 connectors
tors
CAUTION
CAUTION
Before any inspection or repair work, turn the
Before any inspection or repair work, turn the key switch to the OFF
key switch to the OFF position,
position,
disconnect the battery plug/connector, discharge all inverters and record the places of
disconnect the battery plug/connector, discharge all inverters and record the places of
the harness connections before disassembly.
the harness connections before disassembly.
When disconnecting the connector, hold the connector housing and plug and unlock the
When disconnecting the connector, hold the connector housing and plug and unlock the
connector. Holding the case may cause damage to
connector. Holding the case may cause damage to the inside card, while holding the
the inside card, while holding the
cable may cause wire breakage.
cable may cause wire breakage.
If the high-power cable terminals of the battery-operated vehicle are
If the high-power cable terminals of the battery-operated vehicle are not tightened
not tightened
properly, the increased contact resistance causes excessive heat generation, and can
properly, the increased contact resistance causes excessive heat generation, and can
even cause a fire. To
even cause a fire. To prevent accidents and equipment problems, check the tightening
prevent accidents and equipment problems, check the tightening
torque of the high-power cable terminals regularly. Do not pull
torque of the high-power cable terminals regularly. Do not pull the cables to check
the cables to check
connections or during adjustment. If the cable terminal sections are
connections or during adjustment. If the cable terminal sections are moved, re-tighten
moved, re-tighten
the connections.
the connections.
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