IMD 100 Integration manual 4189360015 Rev. G
Electrical HW connections and requirements
Page 35 of 243
Fuses
Mandatory. Use maximum 50 A fuse type F, FF, or semiconductor automatic.
Voltage
120 -500 V DC
The safe energy wires are connected as follows:
IMD 122 B
IMD 122 C
IMD 135 C
Terminal no.
Terminal text
Description
X1, SAFE
ENERGY, 1
SE-
Safe energy negative terminal.
X1, SAFE
ENERGY, 1A
SE M
Safe energy midpoint terminal (IMD 122 C, 135 C only).
X1, SAFE
ENERGY, 2
SE+
Safe energy positive terminal.
(PLH 16) for suitable wire cross section.
See
IMD 100 Installation instructions
for instructions about how to use the connectors.
5.2.4 Ballast resistor requirements
IMD 122 B: The ballast resistor is built in the IMD fan house, and is already connected to the
R-BALLAST terminals upon delivery. The ballast resistor is a 20
Ω 300 W resistor (in total). The
resistor is dimensioned for the motors which the IMD is designed to control.
It is however possible to use other resistors instead of the built-in resistor by disconnecting the
resistor’s wires from the R-BALLAST connectors and connecting the new resistors wires instead.
IMD 122 C: The IMD 122 C does not have built in ballast resistor as standard. It is possible to order
the IMD with the “Internal ballast” option, in which case, the ballast resistor terminals are not available.
IMD 135: The IMD 122 C does not have built in ballast resistor as standard. A ballast resistor cannot
be ordered with the IMD.