Nilfisk-Advance CS7000 Fuel Cell EcoFlex, Service Manual

Page: 322 / 440

Solution System 322 Service Manual – CS7000
Circuit Description
The Following Conditions Must be Met for the Solution System to Operate
• The
Hopper Interlock Switch S3
must be closed.
• There must be positive voltage to the
J7-1 Interlock Input
. For this to happen:
– The
Seat Switch S9
must be closed.
– The
Safety Relay K14
on the
Steer By Wire Controller A5
must energize the coil to close the
Safety Relay
K14
contactor.
– The
Emergency Stop Switch S15
must be closed.
– The
Battery Interlock S13
must be closed (battery machines) or jumpered (Diesel and LP machines).
• The
400-amp Fuse F1
must be closed to provide positive voltage from the
Battery
to the load side of
Auxiliary
Contactor K9
.
• The
Ignition Switch S14
must be closed to provide positive voltage to the
Auxiliary Contactor K9
coil. The
J2-14 Output
on the
A1 Main Machine Controller
provides ground to the
Auxiliary Contactor K9
coil when the
Ignition Switch S14
provides an input to the
Key Switch Input J7-12
.
• The
Auxiliary Contactor K9
must be closed to provide positive voltage to circuit breakers
VACC1/CB1
and
VACC2/CB2
.
• Circuit breaker
VACC1/CB1
must be closed to provide positive voltage to
Solution Valve L1
.
• Circuit breaker
VACC2/CB2
must closed to provide positive voltage to the
Solution Control Pump M19
(EcoFlex™ machines only). (Note that
VACC2/CB2
must closed to provide positive voltage to the
Extended
Scrub Pump M25
and
Low Pressure Pump M23
as well.)
• The
J2-20 PWM Output
provides negative ground to
Solenoid Valve L1,
and the
J3-2 PWM Output
provides
negative ground to the
Solution Control Pump M19
under the following conditions:
– The
A1 Main Machine Controller
must receive a signal from the
A3 Control Panel
via the
CAN BUS
that the
operator has pressed the scrub switch.
– The
A1 Main Machine Controller
must receive a signal from the
A2 Drive Controller
via the
CAN BUS
that
the machine is moving forward or (optional) in reverse.
The Following Conditions Must be Met for the Extended Scrub System to Operate
The extended scrub system requires the same conditions to operate as does the solution system, with the
following additions:
• The extended scrub function must be installed in the configuration menu.
• The
J3-1 PWM Output
provides the negative ground to the
Extended Scrub Pump M25
under the following
conditions:
– The
A1 Main Machine Controller
must receive a low-solution signal via the
CAN BUS
from the
A3 Control
Panel
.
– The
A1 Main Machine Controller
must receive a signal from the
A3 Control Panel
via the
CAN BUS
that the
operator has pressed the extended scrub switch.
– The
A1 Main Machine Controller
must receive a signal from the
A2 Drive Controller
via the
CAN BUS
that
the machine is moving forward or reverse.