CPS-EX2000(R2) MANUAL
Camtec Power Supplies GmbH - Gewerbestrasse 30 - DE-76327 Pfinztal / Germany
P.10/21 (07/2017.01.3)
Tel. +49 (721) 46596 - 0 Fax +49 (721) 46596 - 77
www.camtec-gmbh.com
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(Subject to alterations. This product is not designed to be used in applications such as life support systems wherein a failure or malfunction could result in injury or death)
Master-Slave Mode (Ureg-OUT/Ireg-OUT)
The CPS-EX power supplies offer the possibility of Master-Slave operation. To increase the output current, up
to 5 units of the same type and output voltage can be connected in parallel. One device takes over the function
of the master, the other devices assume the slave function. The Current Share Bus (CS) marries the involved
power supplies together. The CS bus allows a symmetrical current distribution in parallel operation of several
identical CPS-EX units.
Define a power supply as the master. Set S11=0 for all the involved units. The signals of the interface are
looped together. Connect Ureg-OUT and Ireg-OUT of the master to Ureg-IN and Ireg-IN from to slave. Connect
the corresponding Ureg-OUT/Ireg-OUT from the slave to the next slave, etc. All the monitoring signals of each
power supply are still available.
Current Distribution in Parallel Mode (CS), CSB Current Share Bus
In parallel operation, a uniform current distribution between the participating power supplies is important. To
prevent one of the power supplies going early into the current limitation and display error message. An uneven
load and thus premature aging of the participating devices is prevented.
Connect CON3 contact 5 (CS) to contact 13 of the slave. Are other devices involved in the parallel operation,
you may grind the CS bus through from unit to unit. The current division between the devices will be performed
automatically. The accuracy of the current distribution is ±5% at Iout
≥
0,5 x Iout max. Derate the total output
current by 5% to prevent unit overload condition (signaling).
External Shutdown (SD)
The power supply is set to the Shutdown mode, when the
control input is either shorted via a relay contact, a switch
contact or an NPN transistor with open collector (voltage drop
<1V, current typ. 1,5mA). Alternatively, a voltage of 10 to 30V
(typ. 12V/1.5mA, 24V/5.5mA) can be applied.
If the shutdown repeals the power supply starts with a delay of
35ms.
Using the soft start, the current and the voltage rises within
100ms continuously to the default set values. Between control
input SD and power output is a reinforced Isolation of max.
400Vdc and a basic isolation of max. 600Vdc working voltage.
Standby (SB)
The power supply is switched to standby mode when the
control input is shorted optionally via a relay contact, a switch
contact or an NPN transistor with open collector (voltage drop
<1V, current typ. 1.5mA). Alternatively, a voltage of 10 to 30V
(typ. 12V/1.5mA, 24V/5.5mA) can be applied.
If the standby repeals, the power supply starts with a delay of
500ms.
Using the soft start, the current and the voltage rises within
100ms continuously to the default set values. Between control
input SB and power output is a reinforced Isolation of max.
400Vdc and a basic isolation of max. 600Vdc working voltage.
