Cut Sheet

EDM
Safety Output
+24V dc 0V dc
+
+
14
23 24
33 34
Machine
Control
Feedback (optional)
IM-T-9A
Primary
Safety
Device
MPCE
1
MPCE
2
MPCE2 MPCE1
Y2
Y1
Y3
Y4
S4
K2
S3
S1
K1
K2 K1
S2
13
Arc suppressors
(see WARNING)
Figure 7. Generalized hookup to a primary safety device with one
redundant relay safety output (one-channel control) and one
monitoring input.
WARNING: Single-Channel Hookup.
Single-channel hookup, as shown is only for
use when the PSD and the Interface Module
are within the same enclosure. Refer to
One-Channel Control.
Although this hookup shows model IM-T-9A, the hookup for
model IM-T-11A is identical.
The single-channel input hookup configuration can not detect short circuits to secondary sources of +24 V dc or detect the
loss of the switching function of the primary safety device (i.e., it is not redundant) and thus this circuit typically can meet
only ISO 13849-1 Category 2.
It is recommended that in all circumstances the installation of the Interface Module and its associated primary safety
device are installed to eliminate or minimize the possibility of failures and faults that could result in the loss of the safety
function(s). Methods to eliminate or minimize the possibility of these failures include, but are not limited to:
• Physically separating interconnecting control wires from each other and from secondary sources of power.
• Routing interconnecting control wires in separate conduit, runs, or channels.
• Locating all elements (modules, switches, and devices under control) within one control panel, adjacent to each
other, and directly connected with short wires.
• Properly installing multi-conductor cabling and multiple wires through strain-relief fittings. (Overtightening of a
strain-relief can cause short circuits at that point.)
• Using positive-opening components as described by IEC 60947-5-1 installed and mounted in a positive mode.
• Periodically checking the functional integrity / safety function and training operators, maintenance personnel, and
others associated with the operation of the machine to recognize and immediately correct such failures.
If you have any questions about your intended use, please contact a Banner applications engineer at the numbers listed on
the last page.
Connection to the Machine to be Controlled
The wiring diagrams show a generic connection of two safety output channels of the Interface Module to Machine Primary
Control Elements MPCE1 and MPCE2. A Machine Primary Control Element is an electrically powered device, external to the
Interface Module, which stops the machinery being controlled by immediately removing electrical power from the machine
and (when necessary) by applying braking to dangerous motion.
IM-T-9A and IM-T-11A Interface Modules
6 www.bannerengineering.com - Tel: [phone] P/N 62822 Rev. F