Siemens VersiCharge AC Quick Start Installation Manual page 10

VersiCharge™ AC | Quick start installation guide
STEP 10 Connect ModBus
RS485
Part numbers:
8EM1310-4CF14-0GA0,
8EM1310-5CF14-0GA0,
8EM1310-4CF14-1GA1,
8EM1310-5CF14-1GA1
STEP 10A ModBus Connection
Part Numbers
8EM1310-4CF11-0BA0,
8EM1310-5CF11-0BA0
STEP 10B Set ModBus
Termination Switch
Part numbers:
8EM1310-4CF14-0GA0,
8EM1310-5CF14-0GA0,
8EM1310-4CF14-1GA1,
8EM1310-5CF14-1GA1
STEP 10C Set ModBus
Termination Switch
Applicable to Child
units ONLY with the
following part
numbers:
8EM1310-4CF14-0GA0,
8EM1310-5CF14-0GA0
STEP 11 Connect External
Remote Control
Interface – (Optional).
Part numbers:
8EM1312-4CF18-0FA3,
8EM1312-5CF18-0FA3,
8EM1310-4CF14-0GA0,
8EM1310-5CF14-0GA0,
8EM1310-4CF14-1GA1,
8EM1310-5CF14-1GA1
STEP 12 Check the System
10
NOTE: The ModBus connector should NOT be on the Modbus cable when it is pushed through the rubberized gland. This
gland will not self-seal if the connector is pushed through the rubberized gland and the NEMA 4 rating will be lost.
1. Using the supplied ModBus connector gently press the connector into place (see Figure 14).
2. Push the external ModBus cable through the rubberized gland at the back of the charger (this will self-seal). Attach
the external wires to the internal wire connector.
3. Gently tuck the wiring into the space and secure the back of the charger.
Security Note: The ModBus RTU is an open protocol, and it is the responsibility of the installer to ensure the security of the
wiring of these connections to prevent tampering.
NOTE: The ModBus connector should NOT be on the Modbus cable when it is pushed through the rubberized gland. This
gland will not self-seal if the connector is pushed through the rubberized gland and the NEMA 4 rating will be lost.
1. Push ModBus cable through rubberized gland. The rubberized gland will self-seal around the cable.
2. Snake cable up to the ModBus connector.
3. Remove the ModBus plug that is in place and connect to the cable.
4. Reinsert the ModBus plug into the ModBus connector.
SW3-1 (left side) labelled A8 RS485 is the Termination switch. This switch should be in the ON position for the Parent unit or
in the OFF position for a Child unit, unless that Child is the last Child in the daisy chain, then it must be ON.
SW3-2 (right side) labelled M0 RS485 Term is the Termination switch. For the child units the Termination switch must be set
to OFF, unless the unit is the last one in the daisy chain, then the switch must be set to ON.
The Siemens VersiCharge has a Remote Control Interface that allows charging to be controlled by an external device.
Examples include demand response switches, building automation systems, digital sensors, etc.
• To wire a digital input into the dry contact in the connection area located inside of the VersiCharge, please refer to the
complete VersiCharge AC Series Installation and Operation Manual at www.usa.siemens.com/versicharge for more
detail.
• When the external contact is closed, the alternate input will control the VersiCharge, preventing it from entering the
'Charging' state.
• The status output is a switch that indicates charging status. When the contacts are closed, the unit is in charging state.
Pin # Label Description
7 Utility_1 Utility lockout (dry contact input; locked when closed)
9 Utility_2
Turn the power on; the white Power Available light should illuminate. If it does not, verify that the outlet or wire is putting
out 240 or 208 V using the voltmeter.
With the Power Available light on, plug the Electric Vehicle Supply Equipment (EVSE) cable into the car. If you have any fault
lights, please see the HMI figures in the beginning of this manual.
Siemens VersiCharge Mobile App: Download the VersiCharge mobile app to your smartphone to get started using your
charger. Find these applications at either Google Play (https://play.google.com/store), or iOS stores (https://www.apple.com/
ios/app-store/).