Magnetek MHR, Manual

Page: 17 / 59

MHR Radio Controller Instruction Manual
June 2017
Page 16 of 58
+Vbattery (CON1 D3 and CON2 K1, K2, K3)
The MHR is designed to work in any 12-24VDC nominal (9-36VDC max) powered equipment.
The +Vbattery pins should be connected to the positive terminal of the machine power supply
through an approved Emergency Stop device. Additionally, MHR +Vbattery pins should be
protected by a 30A fast blow fuse. All +Vbattery pins must be connected.
-Vbattery (CON1 D2 and CON2 J1, J2, J3)
The -Vbattery connections must be made directly to the negative supply and not to a chassis
ground. All -Vbattery pins must be connected.
NOTE: Added suppression can be placed in between
-
Vbattery and +Vbattery to the level needed
for the system in use. Use Magnetek PN 07-205-005E (33V 5kW TVS) for typical suppression
needs.
Machine Stop (CON1 C1, D1)
In order to ensure maximum safety of the equipment controlled by the MHR, redundant Machine
Stop outputs are provided. Each can supply a current of up to 2 Amps. These outputs will source
battery voltage when the transmitter establishes communication with the MHR. They will stop
sourcing battery voltage when the machine stop on the transmitter is pressed, the OFF position
on the OFF/ON/START is toggled, the transmitter has low battery, the transmitter goes out of
range, or one of the MHR fault conditions listed in Section 7.2.
The D1 machine stop output can be reprogrammed to act as a digital output per application.
Refer to the system drawings to determine if the output has been configured in this manner.
NOTE: Use of flyback diodes is recommended for optimal performance and longevity of the
machine stop output circuits. A flyback diode should be placed between the machine stop output
and
-
Vbattery (Magnetek PN 14-105-0021E). See Figure 9 on page 18 for how this should be
wired in.
Figure 07: MHR Machine Stop Wiring
Additionally, make sure that a Machine Stop is provided elsewhere on the equipment in which the
MHR is installed in order to comply with all applicable Machinery Directives.
The MHR is equipped with a battery backup for the real time clock and calendar. Therefore,
power can be completely disconnected from the MHR when not in use.
NOTE: The backup battery is internal to the MHR and should only be replaced by the factory.