VMX Quick Setup Guide 11 | P a g e
Control Connections
Control connections on the VMX Series starter are divided into 2 groups. With the unit oriented vertically, TB1
is a 12-point DC terminal block (on the left), and TB2 is a 10 point AC terminal block (on the right side). These
are removable terminal blocks for ease of connection and servicing, and are provided with different spacing
(pitch) between the header pins so they are not interchangeable. Following are descriptions of control
connection points.
Figure 5.
Note:
Terminal numbers are shown on the side of the first and last terminal of each block. An additional
3 point terminal on the far left side is for serial communication connections.
AC Control Power Supply Connection
Separate AC Control Power supply is required to power the
electronics of the VMX Series starter. 120VAC is standard, order 240
VAC (optional) if necessary for your line power supply configuration.
The control voltage must be connected to terminals marked A1 and
A2 of TB-2 as shown in figure 5.1 (these are also Terminal No.’s 21
and 22). This control voltage must be customer supplied, unless an
optional control power transformer (see table below) has been
supplied with the unit.
Control Power
Requirements
When sizing a control power
transformer for the VMX…-BP
Series starter use the chart
below for minimum sizes or
supply capacity. Any
additional control devices
powered by the same CPT
must be added to the above
values to ensure proper
operation of the Bypass
Contactor.
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