Section 8 – Servicing and Programming (Continued)
29
11/11/2014
6-7.
Alarm After E-STOP.
This is only for wiring configurations where the Aux 3 (relay K12, output J5-6) is being used for the Alarm
function, placing a jumper on JU1 on the Receiver Board will allow the alarm to function after an E-STOP
command. See Figure 8-1. Receiver Layout for jumper location.
6-8.
Connecting Outputs To Drives.
MOV’s (transient protectors) are on all the output relays to protect the relays from power surges. MOV’s
allow a small leakage current that can affect some high impedance circuits. When connecting output relays
to drives, it may be required to remove the MOV to prevent the leakage current through the MOV from
holding in the drive. See Figure 9-1. Receiver Layout for the location of the MOV's. The MOV’s are next
to the relays they protect. The MOV’s can be cut out of the circuit with a wire cutter. Remember to do this
with ALL power OFF on the crane and all associated controls.
Legend
The following is the legend for the wiring diagrams below:
6-9.
Optional Transfer Switch Wiring Configurations.
If a transfer switch is desired, a simple schematic of an externally installed transfer switch interface is
shown on the next page. A complete system drawing for this transfer switch is shown on the following
pages (see Figure 6-3A.). A factory installed internal transfer switch is available. A system drawing for this
optional factory installed internal transfer switch and pigtail is shown on the following pages (See Figure 6-
3B.).
Matching relay contacts
in radio receiver panel
by number
.
#
An input with the terminal
number # matching the con-
nector in the receiver.
#
An output with the terminal
number # matching the con-
nector in the receiver.
Customer supplied
contactor coil with arc
suppressor in parallel.
C#
K#
Figure 6-1. Legend.
