diff --git a/frappy_psi/jtccr.py b/frappy_psi/jtccr.py
index 407c434e..a26449da 100644
--- a/frappy_psi/jtccr.py
+++ b/frappy_psi/jtccr.py
@@ -17,8 +17,9 @@
 #   Anik Stark <anik.stark@psi.ch>
 # *****************************************************************************
 
-from frappy.core import Parameter, Writable, Attached, EnumType, FloatRange, \
-    IDLE, WARN
+import time
+from frappy.core import Parameter, Property, Writable, Attached, EnumType, FloatRange, \
+    IDLE, BUSY, WARN
 
 
 STATES = {'manual': 0,