Jaypro Sports MHWM-D-A - Manual (Page 32)

© 2005 Jaypro Sports Equipment JSL-Inst001 Rev G 10-24-2006 32 of 40
16. Description of Controller Leveling Feature
a. The mat hoist control system is equipped with a Programmable Logic Controller, or PLC. This
is basically a mini-computer capable of monitoring numerous system functions and receiving
inputs from the system components. As with any communication device, however, open lines
of communication must be present and in full working order in order for system to operate
correctly.
b. The PLC has an internal program that runs continuously while power is present in the control
panel. Should a power outage occur, the settings will be saved and normal operating mode will
be automatically restored upon restoration of building power.
c. A feature of the PLC programming is an automated leveling of the hoist system load bar. In
order for this to work correctly, the unit must be lowered fully at least once during each duty
cycle in order for the internal winch drum counters to be ‘zeroed’ out and the count reset.
d. Should either of the winches get ahead or fall behind the other during the raising or lowering of
the load bar, the program will automatically halt the lagging hoist and allow the other to catch
up. This will be evident by a clicking noise from within the control panel, and the hesitation or
stopping of one winch. This is normal and no cause for concern.
e. The hoist wire rope drums are ‘watched’ by a proximity read switch internal to the winch.
Should this switch or its wiring become damaged or stop working for any reason, the system
will enter a fault mode and require complete reset after troubleshooting and correction of
proximity switch error or damage.
f. If the system remains out of sync, or in other words if the lagging winch ceases to operate or
cannot catch up to the leading winch, the system will go into ‘fault mode’, and will not be
allowed to operate normally until the fault is cleared. Manual motor mode will be allowed
during the fault mode in order to operate the system just enough to clear the area for other use.
Only authorized personnel should operate the system in such a manner, and Jaypro is not
responsible for any damage to the system during such a procedure. This would be classified as
a safety override, and warranty may be void
g. It is very important during the initial setup to set the lower limit switches for the hoists high
enough off the floor to allow for loading of the mats onto the load bar, while also permitting the
system to reach the bottom limit switches and enable the counter reset during each up/down
cycle.
17. On-Site Personnel Training
a. For the last part of a successful installation, it is necessary to demonstrate unit operation to the
athletic director or other such facility personnel. This should be the person who will be
ultimately responsible for the operation of the unit. If no such person is on site at the
culmination of installation work, every attempt should be made to contact facility personnel
and turn over the keys and operating manual. At the very least please demonstrate hoist
operation to the general contractor or job foreman and leave a copy of this manual attached to
the load bar.
b. Jaypro has training materials available for operating the equipment, as well as regular
maintenance procedures and troubleshooting. For additional information call the factory
directly at 1-800-243-0533 or visit us on the web at www.jaypro.com