The controller checks the following functions:
• Checks the temperature and gives both low-
and high-temperature thermal protection to
the controller.
• Electronically checks the traction circuit for
malfunctions and prevents traction motor op-
eration if a failure occurs.
• Regulates the current in the motor circuit
and automatically reduces the current and
prevent damage.
• Checks for incorrect battery usage.
• Checks for and protects from stall conditions.
CONTROLLER REMOVAL
1.
Move lift truck to a safe, level area. Turn the
key switch to the OFF position and remove the
key. Attach a DO NOT OPERATE tag to the
multifunction control handle. Put blocks under
drive wheels to keep lift truck from moving. See
Periodic Maintenance 8000SRM1617 - How
To Put A Lift Truck On Blocks.
WARNING
Disconnect the battery and separate the connec-
tor before opening the compartment cover or in-
specting/repairing the electrical system. If a tool
causes a short circuit, the high-current flow from
the battery can cause a personal injury or prop-
erty damage.
NOTE:
Controllers and dash displays should not be
exchanged between other trucks for periods of lon-
ger than 10 hours for testing purposes. Controller
nodes may acquire higher hours from a donor truck
if this practice is used and the original truck hour
meter readings cannot be recovered to lower hour
level readings. Additionally non-programmed devi-
ces may assume the truck serial number that they
are installed in.
2.
Disconnect and separate battery connector. Re-
move the cover and discharge the capacitors.
Refer to Discharging the Internal Capacitors.
3.
Unplug connectors from traction or hydraulic
motor controller. Tag and disconnect wires to
terminals.
4.
Remove four cap screws and lock washers and
carefully remove the necessary controller from
the aluminum heat sink plate.
INSTALL
1.
Make certain the mounting surface for the con-
trollers are clean. There should be no dirt be-
tween the frame and the controllers. Align the
controllers in lift truck with holes and install
lock washers and cap screws. Tighten the Trac-
tion or Hydraulic Controller mounting cap
screws to 7 to 8 N•m (62 to 71 lbf in). If mount-
ing the aluminum heat sink for either pump or
traction controllers to the frame, tighten screws
to 10 to 12 N•m (89 to 106 lbf in). Refer to A/C
Motor Repair S/N A169N03000L=> S/N
A185N03000L=> S/N H118N03000L=> S/N
E174N03000L=> 0620SRM1621 for phase ca-
ble torque specifications.
LOW-VOLTAGE PROTECTION FUNCTION
This function protects the controller and the bat-
tery. The controller will not operate correctly if
there is less than 18 volts from the battery. The
battery current drain increases as the battery volt-
age decreases. The battery may still operate the lift
truck to move it for battery charging or replace-
ment.
AC Motor Controllers
2200 SRM 1612
14
Содержание D264
Страница 1: ...Hyster D264 N45ZR2 N35ZDR2 Forklift...
