Curtiss-Wright | PG Drives Technology
SK77981-14
49 | R-net Technical Manual | Chapter 2 - Installation
WARNING:
The chair manufacturer must install a suitable circuit breaker to provide protection against short circuits in the battery
wiring, power loom or the control system. Failure to comply with this could result in a fire hazard. Curtiss-Wright accepts no
liability for losses of any kind arising from failure to comply with this condition.
6.4
MOTOR CONNECTION S
If a circuit breaker is fitted in series with a motor, it is essential that the wheelchair assume a safe con dition the moment the
circuit breaker operates. You must therefore fit a circuit breaker with an auxiliary switch that disconnects the solenoid bra ke
from the Power Module.
6.5
INHIBIT CONNECTIONS
The Power Module contains the Inhibit 2 and 3 connections, and the ISM contains the Inhibit 4 and 5 connections. These
connections can be used to limit speed, inhibit drive and /or inhibit actuator channels. Refer to Chapter 3 – Programming for full
details.
6.6
LIGHTING CONNECTIONS
Each lighting output is rated at 21W maximum. Use suitably rated wire to each bulb. The output is self -protecting against wiring
and bulb faults and will shut-off if the maximum power rating is exceeded. Likewise, if the output becomes too hot it will shut-
off to prevent permanent damage to itself.
6.7
INDICATOR CONNECTIONS
Each indicator output is rated at 42W maximum. Use suitably rated wire to each bulb. The outputs are self -protecting against
wiring and bulb faults and will shut-off if the maximum power rating is exceeded. Likewise, if either output becomes too hot it
will shut-off to prevent permanent damage to itself.
If an indicator bulb fails, the ISM will detect this and flash the remaining bulb for that side at 3Hz as well as sending information
to the Joystick Module so that the relevant indicator LED flashes likewise.
6.8
ACTUATOR CONNECTIONS
Each actuator channel is rated at 15A maximum, although only 12A is avai lable when the channel is programmed to 100%
speed. If currents of greater than 12A are required, the programmed speeds for that channel must be reduced. The level of
reduction is dependent upon the electrical characteristics of the actuator motor, so an empirical process to establish the level of
the reduction is required.
If the wheelchair is fitted with solid mechanical end-stops at the end of the actuator travel, it is not necessary to fit limit
switches as the ISM can detect when the actuator motor ha s stopped and will cut off the power to it.
6.9
ON-BOARD CHARGER CONNECTIONS
The Bve and 0V connections are rated at 12A rms. Use suitably rated wire for these connections.
NOTE:
The maximum permissible charging current is 12A rms.
